Dosicard-R User's Manual[1]_fixed

Dosicard /R

User’s Manual 9236766A

Copyright 2003, Canberra Eurisys SA. All rights reserved.

The material in this document, including all information, pictures, graphics and text, is the property of Canberra Eurisys SA and is protected by French copyright laws and international copyright conventions.

Canberra Eurisys expressly grants the purchaser of this product the right to copy any material in this document for the purchaser’s own use, including as part of a submission to regulatory or legal authorities pursuant to the purchaser’s legitimate business needs.

No material in this document may be copied by any third party, or used for any commercial purpose or for any use other than that granted to the purchaser without the written permission of Canberra Eurisys.

Canberra Eurisys SA ZA de l'Observatoire - 4 avenue des Frênes 78067 St Quentin Yvelines Cedex - France Tel: 33 (0)1 39 48 57 70 FAX: 33 (0)1 39 48 57 80 http://www.canberra.com

The information in this document describes the product as accurately as possible, but is subject to change without notice.

http://www.canberra.com/

Choosing a Battery

Battery lifetimes vary between battery manufacturers. For longer battery life, Canberra recommends DURACELL and RENATA batteries.

The battery lifetimes depend also on the Dosicard’s LCD display mode. If the Dosicard is set for the LCD display to be in the “permanent display” mode, the battery life will be very short. You can change the display mode through Canberra's DoseManager software.

TABLE OF CONTENTS

1. INTRODUCTION......................................................................................................................................1 2. GETTING STARTED ...............................................................................................................................4 3. CONTROLS .............................................................................................................................................6

3.1. FUNCTIONAL DESCRIPTION................................................................................................................6 3.2. MAIN SCREENS .................................................................................................................................8

4. SETUP ...................................................................................................................................................18 4.1. SET UP DIRECTLY ON INSTRUMENT ..................................................................................................18 4.2. SETUP VIA DATA BASE SOFTWARE...................................................................................................24

5. OPERATION..........................................................................................................................................25 5.1. OPERATING MODES.........................................................................................................................26 5.2. “PERMANANENT” MODE DETAILED INSTRUCTIONS............................................................................27

5.2.1. Manual dose function......................................................................................................28 5.2.2. Dose rate function ...........................................................................................................30 5.2.3. Dose in current day function..........................................................................................31 5.2.4. Test function ....................................................................................................................32 5.2.5. Password protected functions .......................................................................................35

5.3. ALARMS AND INDICATORS FUNCTIONS................................................................................40 5.3.1. Manual dose alarm ..........................................................................................................41 5.3.2. Dose rate alarm................................................................................................................42 5.3.3. Daily dose alarm ..............................................................................................................43 5.3.4. Time alarm........................................................................................................................44 5.3.5. Monthly dose alarm.........................................................................................................45 5.3.6. Three-month dose alarm.................................................................................................46 5.3.7. Indicators..........................................................................................................................47

6. MAINTENANCE.....................................................................................................................................48 6.1. NORMAL MAINTENANCE..................................................................................................................48 6.2. TROUBLE SHOOTING ......................................................................................................................48

7. APPENDICES........................................................................................................................................49 7.1. TECHNICAL CHARACTERISTICS ........................................................................................................49

7.1.1. Nuclear characteristics ...................................................................................................49 7.1.2. Electrical characteristics ................................................................................................51 7.1.3. Mechanical & environmental characteristics ...............................................................51 7.1.4. Electromagnetic compatibility .......................................................................................51

7.2. WHEN AND HOW TO CHANGE DOSICARD BATTERY............................................................................53 7.2.1. When to change the Dosicard battery?.........................................................................53 7.2.2. How to change the Dosicard battery?...........................................................................55

7.3. TEST PROCEDURE ..........................................................................................................................58 7.3.1. Dose integration test.......................................................................................................58 7.3.2. Calibration and checks ...................................................................................................58

7.4. GLOSSARY.................................................................................................................................59

DosicardTM/R

1

1. INTRODUCTION Thank you for purchasing the DosicardTM Personal Dosimeter, developed to help you make a permanent record of your accumulated dose while continously monitoring your current dose rate.

The Dosicard badge is designed to be used in its vinyl protective pocket which protects it from dirt, humidity, shocks, contamination, etc…, even during bi-directional infra-red dialog with a multiplexer or when using the three touch buttons.

One Dosicard is associated with one worker.

With its credit-card size, Dosicard features the smallest stand-alone electronic dosimeter available on the market. The quantity measured is the personal dose equivalent Hp(10) in γ-rays, which is referred to throughout this text by its abbreviated form of "dose" and is often expressed in mrem (millirem). Dosicard provides real time monitoring of the personal dose and dose rate. The knowledge of individual dosimetry in real time is very important, as it allows the doses received during operations to be reduced, in accordance with the ALARA (As Low As Reasonably Achievable) strategy. That’s why the date and time must be set.

The Dosicard Personal Dosimeter carries the " CE " label for electromagnetic compatibility

Dosicard features a silicon detector, complete analog and digital circuitry, including a microcontroller with large non-volatile memory, an LCD display, and audio and visual alarms. Three touch buttons allow programming and display setup of the manual dose, dose rate and cumulative doses per day/month/quarter/year/five years. The recording of the doses received according to a programmable schedule, the management of the alarms, the display and the touch buttons are powered by a standard button battery. Non-volatile EEPROM memory safely stores the detailed history of the daily doses, times when alarm levels have been exceeded, and relevant data concerning the user and the badge itself.

Thanks to the power of its microprocessor and the capacity of its internal memory, the dosimeterDosicard contains a very large range of functions which are fully exploited in the DOSEMANAGER and CARD systems (see the relevant manuals). Depending on their configuration, these computerised systems can provide the total management of operational dose measurement of for personnel, from a small medical laboratory of ten people, up to a nuclear center employing a thousand.

Different dosimetry configurations:

DOSIMAN is a Dosicard with a special ON/OFF switch for users who do not want to monitor dosimetry via a database. Once switched off, DOSIMAN clears all data and is ready for next use.

Stand-alone DOSIMAN

The DOSEMANAGER System: −

−

The attribution and configuration software enables all the information related to the badge wearer (such as identity, authorizations, etc.) and to the badge itself (alarm configuration, functional mode, etc.) to be recorded in the badge’s memory. The operational software enables the complete dose history of a group of people, stored in a data base that is an integral part of the software, to be controlled.

The DOSEMANAGER system is well adapted to departments employing a few dozen people, who may occasionally move from site to site.

BADGEREADERMobile PC

Small system Dosicard / DOSEMANAGER software

2

The CARD System enables the complete dose history of a group of people and monitors their presence in a controlled zone. The zone entrance and exit readers are connected by an Ethernet TCP/IP network to a central computer which manages the installation’s data base and its event history.

The CARD system is well adapted to large nuclear installations employing several thousands of people.

ENTRANCE ACCESS READER

Eth

erne

tRS 422

CONTROLLED AREA

EXIT ACCESS READER

BACMULTIPLEXER

Printer

LCBBADGE

READER

HEALTH PHYSICS OFFICE

RS 232

Big system with Dosicard / CARD software

3

2. GETTING STARTED

4

•

•

•

•

Ensure that the badge is equipped with a battery.

The badge must be placed in its protective pocket which must be closed.

Do not take the dosimeter out of its pocket.

Do not put other objects in the pocket.

Fixing clip

Protective pocket

•

•

Wake-up Dosicard: To activate the liquid crystal display, press anytouch button.

If the Dosicard displays nothing, consult § 6.2.

Ensure that the LCD is activated. Ensure that the following indicators are not displayed.

• If the low battery pictogram appears and particularly before opening the back cover, consult the appendix, paragraph 7.2. Never open the back cover without a reason. The date and time setting may be lost.

•

•

•

HS: Battery out of order ; consult the appendix, paragraph 7.2.

STOP: *Battery flat signal ; consult the appendix, paragraph 7.2.

Check the triangle status.

at the upper left corner of the display is not flashing, it means that the analog part of the Dosicard is not powered, in order to save the battery. This occurs particularly when out of the controlled zone in "Stand-by" mode and outside of the time period in "Daily Timer" mode Activation signal for the dose measurement function, i.e. the measurement and integration

5

•

•

Ensure that your Dosicard has been identified in data base. Check with your Health Physics manager officer.

Dosicard must be assigned to one worker: one badge number is associated with only one worker number. If not, Dosicard offers only a small number of functionalities (see § 4).

Go on test screen. For that, press the button twice when the Dosicard is awake.

MTH YR

Ensure 3, MTH and YR are not blinking. If so, the date and time have not been set. A badge reader and the attribution software are needed to copy the system time into the Dosicard (see the user manual of the PC based software such as DOSEMANAGER).

Dosicard IS NOW READY TO USE!

3. CONTROLS Dosicard offers two levels of control:

6

− −

direct access on Dosicard front panel, software driven setup. This level of control needs a PC, software and a badge reader (LCB).

3.1. FUNCTIONAL DESCRIPTION

Liquid Crystal Display (LCD) Liquid Crystal Display (LCD) Buzzer air vent

audible alarm

Three touch buttons Three touch buttons Position of the

silicon diode Position of the silicon diode

Red LED for visual alarm Red LED for visual alarm

Figure 1: DosicardTM /R, front view

Code and serial No

Rear cover locking screw (battery access)

Concise instructions for use

Figure 2: Dosicard /R, rear view

Touch buttons:

Screen selection: button used to switch from one screen to the next.

Accept: button used to accept an entry or a choice.

Scroll: button used to increase the digits or to pass to the next option inside each screen.

Different pictograms and annotations are displayed:

Status of the acquisition.

Activation signal for the dose measurement function, that is to say the measurement and integration of the dose.

If this triangle is not flashing, it means that the analog part of the Dosicard is not under power, in order to save the battery. This occurs particularly when out of the controlled zone in "Stand-by" mode and outside of the time period in "Daily Timer" mode.

∗ Activation signal for the manual dose function. This flashes after a manual (or automatic by the badge entrance reader) "START", and it is continuous after a manual (or automatic by the badge exit reader) "STOP".

•))) Signal for the presence of an alarm level. Always on when the alarm is not activated, and flashes when the alarm is activated.

Flashing battery indicator. This appears at the first negative hourly check and lasts for a week.

HS Fixed signal for battery out of order. This appears 48 hours after the first negative hourly check and lasts for five days.

StoP Battery flat signal. This appears one week after the first negative check. From that moment the badge will no longer tell the right time.

SET This word appears when an access code must be entered for setting the alarm levels or consulting the dosimetric file

MTH for the cumulative monthly dose (the previous 30 days)

3 MTH for the cumulative 3-monthly dose (the previous 90 days)

YR for the cumulative yearly dose (the 12 previous calendar months)

5 YR for the cumulative 5 year dose (the 60 previous calendar months)

7

3.2. MAIN SCREENS

SLEEP MODE:

Manual Dose

Doserate

Dose in Current Day

Alarm setup /Dose History

Test / Alarm display

Hp mrem)))*

Hp mrem/h)))

Hp mrem)))

.

)))

SET )))

Sleep

The Sleep Mode switches off the display but NOT the detector. •

•

•

•

•

•

•

All the dose acquisition in process remains running when to in the Sleep Mode.

This display mode saves energy, and increases the battery’s life.

This is the default display mode: The display automatically switches to this mode 4 minutes after the last button press.

Dosicard quits this display mode as soon as ANY button has been pressed.

When it leaves the Sleep Mode, Dosicard goes toManual Mode (see further).

The Sleep Mode can be disabled by using a badge reader (LCB) and the software DOSEMANAGER or CARD. The display is then always switched on.

8

1) MANUAL DOSE MODE: Hp mrem)))*

Manual Dose

Doserate

Dose in Current Day

Alarm setup / Dose History


Sleep

Hp mrem

)))*

Hp mrem)))

.

Hp mrem/h)))

SET )))

)))

•

•

The Manual Dose Mode is an active mode, identified by the presence of the star in the top right part of the display.

Acquisition starts when the subject presses the star button . The displayed star starts blinking and the previous value is reset.

The acquisition stops when the subject presses the star button again . The displayed star stops blinking.

•

Press the straight arrow button (during or at the end of the acquisition) to see the elapsed time.

•

• If the alarm threshold is exceeded during acquisition, the corresponding alarms are triggered (see alarm management § 5.3).

9

2) DOSE RATE MODE: Hp mrem/h)))

Manual Dose

Doserate

Dose in Current Day


Sleep


Hp mrem/h)))

Hp mrem)))

.

Hp mrem)))*

SET )))

)))

•

•

•

•

•

This is a passive read-only mode

Dose Rate acquisition starts automatically when the detector is switched on (by the badge reader (LCB or BIO readers)).

The top left corner state triangle starts blinking. In “permanent” mode, Dosicard always acquires dose.

The dose rate acquisition stops automatically when the detector is switched off (by the LCB or BIO readers),in stand-by mode, or out of the time range in daily timer mode. When dose rate acquisition turns off, the triangle in the upper left corner of the display stops blinking.

If the Dose Rate alarm threshold is exceeded when the Dose Rate is active, the corresponding alarms are triggered (see alarm management).

Some Dosicard dosimeter versions can be set in the factory without this doserate display mode (Dosicard /H, Dosicard /Z).

10

3) DOSE IN CURRENT DAY MODE: Hp mrem)))

.

Manual Dose

Doserate

Dose in Current Day


Sleep


Hp mrem)))*

Hp mrem/h)))

Hp mrem)))

.

SET )))

)))

This is a passive read only mode •

•

•

•

•

•

•

If the detector is active (state triangle blinking), it operates automatically.

It’s the accumulated dose since 0:00 AM in the permanent mode.

It’s the accumulated dose since entering a controlled area in zone mode (detector switched on by a badge entrance reader).

The daily dose is saved in memory each day at midnight, becoming the most recent of the 90 daily doses.

One Dosicard holds 90 daily doses permanently, allowing dose summation: « month dose »=sum of the last 30 daily doses; « 3 months dose » = sum of the last 90 day doses.

In order to keep a daily history of the Dosicard wearer, it is required to update the database at least once every 3 months using the LCB reader and the software’s “Database update” feature.

11

4) TEST / ALARM DISPLAY MODE:

Manual Dose

Doserate

Dose in Current Day


Sleep


Hp mrem/h)))

Hp mrem)))

.

Hp mrem)))*

)))

SET )))

This is an active mode. •

• Press the star button to start the test.

• − − −

•

− − − −

The following tests are then automatically performed: All the liquid crystal segments are displayed. One beep is emitted by the buzzer. The LED blinks once.

After these tests, all four alarm levels are displayed:

Manual dose Dose rate Time Dose increment (step) – Buzzer dose

12

Alarm levels setup displays:

Incremental beep Time alarm

Doserate alarmManual dose alarmSET

mremHpSET )))

Hp mrem/h

SET

SETSET

mrem

Setup display

User’s code

Accumulated dose displays:

5 Years Dose Year Dose

3 Months DoseMonth Dose

Hp mrem

MTH

Hp mrem

3 MTH

Hp mrem

YR

Hp mrem

5 YR

Pressing the button returns the Dosicard to the normal Dose main screen.

15

Alarm management: type of alarms:

Audible alarm LCD display

Visual alarm

Hp mrem)))

.

Alarm levels are available on: • manual dose • dose rate • time • dose increment The alarm pictogram •))) is activated when at least one alarm is enabled. There are three alarm signals: • an audio signalwhich varies according to the alarm:

manual dose: 2 rapid short beeps every second dose rate: 4 short beeps per second buzz: 4 times 2 rapid short beeps time: 1 long beep per second daily/monthly/3-monthly doses: 3 rapid short beeps per second low battery: 7 long beeps at every hour

• short flashes emitted by the red LED, with a frequency of one per seconalarm.

• a flashing display: manual dose: Hp 0.5 mrem * •))) (0.5 mrem is the manual dose level)

dose rate: Hp 1.1 mrem/h •))) (1.1 mrem/h is the exceeded peak rate) •

buzz: no specific display time: tr30 •))) (here 30 mn is the time level) daily doses: Hp 1 mrem •))) (1 mrem is the dose exceeded level)

16

Alarm pictogram flashes when the alarm is activated

d, whatever the type of

Alarm management: alarm level setup (consult § 4.1)

17

• Available from the display « Waiting for Code » after validation of the 4 hyphens « - - - - », using the star button .

•

•

•

•

Setup available on the Manual dose, the Dose rate, the Time and the Dose Increment (Step).

Alarm levels memorized: not reset when detector stopped nor when batteries out of service.

Presence of one Alarm Pictogram as soon as at least one alarm level is set up.

Reading of the alarm levels available from the Test display mode, after starting the tests (see Test display mode).

4. SETUP Dosicard stores doses permanently and continuously unless the battery is missing or out of order.

Dosicard parameters can be set

18

− −

directly on instrument or via a PC based software (an LCB reader, a PC and software are needed).

In order to be operational, the Dosicard has to be assigned to one subject. This can only be done in PC based software (i.e. DOSEMANAGER; Please consult the relevant user manual).

Alarm level set up:

ALARM LEVEL: AVAILABLE (SETUP AND DISPLAY) IN:

Timer Incremental dose beep Manual dose Dose rate Dose in current day Month dose (last 30 rolling days) 3 month dose (last 90 rolling days)

PC software DOSEMANAGER

DosicardTM (if enabled by PC software)

DosicardTM ONLY

4.1. SET UP DIRECTLY ON INSTRUMENT

NOTE The Dosicard’s parameters can be set only if the Dosicard has been assigned to one subject via the PC-based software (i.e. DOSEMANAGER or CARD).

The user does not have access to all the alarm levels. Incremental beep (1) −

− − −

Timer alarm (2) Dose rate alarm (3) Dose in current day alarm (4)

(1) and (2) are always available on the Dosicard. (3) and (4) are only available if enabled in PC software (see the relevant user manual).

HOW DO I SET AN ALARM LEVEL ON Dosicard ?

From the Alarm Setup display screen (see 5) of § 3.2) of Dosicard:

Alarm level setting

Manual Dose

Doserate

Dose in current day

Test/Alarm display

Alarm setup display

SLEEP MODE

Hp mrem)))

Hp mrem)))*

Hp mrem)))

.

Incremental beep Time alarm

Doserate alarmManual dose alarm

Manual Dose

Alarm setup display

SETSET

mrem

SET

mrem/hHp

*Hp mrem

)))

Hp mrem

SETSET )))

The following alarm levels are manually accessible by the subject, using the three touch buttons: − − − −

the manual dose level, the dose rate level, the time level, incremental dose level.

The default setting of the badge allows manual setting of the levels. Nevertheless, it is possible at any time to prevent the subject from changing the levels manually. To do this, all that is needed is to calibrate the Dosicard differently using the attribution software and a badge reader. Access to the alarm level changes can be authorised or prevented depending on the configuration of the Dosicard.

A null value for a level corresponds to the deactivation of that level.

19

20

− Access to the manual modification of the alarm levels is available from the Alarm Setup display screen (see 5) of § 3.2), corresponding to the entry into the « coded access functions » mode. In this mode the display shows screen as follows :

SET

The triangle indicating the state of the badge is flashing. Four hyphens in the center of

the displayfigures, with the first hyphen flashing

The word "SET" is continuous.

Figure 3

From this screen, you must press the “ VAL" button four times to see the screen for setting the level for the current day’s dose.

−

Each successive press of the " VAL" button makes the next digit flash, as is shown in the figures below :

• First touch on the " VAL" button:

SET

The triangle and the second hyphen will flash.

• Second touch on the " VAL" button

SET

The triangle and the third hyphen will flash.

• Third touch on the " VAL"

SET

The triangle and the fourth hyphen will flash.

• From this situation, the fourth and last touch on the " VAL" button will then allow access to the adjustment screens for the following levels :

Dose in Manual alarm level screen:

Hp mrem

SET

The word "SET" will flash.

Figure 4

Successive touches on the " SCROLL" button will scroll through the four adjustment screen levels.

Dose rate alarm level screen:

Hp mrem/h

SET

The word "SET" and the dot " " will flash.

Figure 5

Time alarm level screen:

SET


Figure 6

Incremental dose screen:

SET

mrem


Figure 7

Figure 7Successive touches on the “ SCROLL" button will scroll through through again.

Figure 4

To select a level, press the " VAL" button in the desired screen. The word "SET" will then become continuous and the first hyphen will flash.

−

The " VAL" button therefore enables the selection of the level that the wearer wishes to adjust. −

The “ MODE" button allows one of the following : − • to quit the level adjustment mode if a procedure of this type has not been initiated, that is to say

when there has not been a previous touch on the " VAL" button. In this case the Dosicard returns to the manual dose function, and displays Figu : re 8

Figure 8

Hp mrem*

• to leave the adjustment procedure for the level in progress if there has been a touch on the " VAL" button, and pass on to the adjustment of the next level.

21

1) How to adjust the alarm level for the manual dose

After having selected this level by the " VAL" button from Figure 4.

SET

mremHp

The word "SET" is continuous. The first hyphen

is flashing.

• Each press of the “ SCROLL" button increases the first digit from 0 to 9.

• The " VAL" button validates the value of the digit displayed and selects the next digit.

• Validation of the fourth digit allows the unit, ‘m’ for milli or ‘µ’ for micro, to be chosen with the " SCROLL" button.

• Once the unit is correctly displayed, a touch on the " VAL" button accepts the level and unit displayed and and stores them in the badge’s memory. This final acceptance is accompanied by a special sound signal indicating that the value has been stored.

At this stage, when the value has beenstored:

• the “ SCROLL" button will enable adjustment of the next level.

• the " VAL" button will enable the same level to be adjusted again.

• the “ MODE" button will quit the level adjustment mode.

The dose in current day level may be adjusted between 0 mrem and 999.9 rem.

2) How to adjust the alarm level for the dose rate

After having selected this levelwith the " VAL" button(Figure 5).

SET

mrem/hHp


The first hyphen and the dot " " are flashing.

The adjustment procedure is identical to that for the manual dose level with a range from 0 mrem/h to 999.9 rem/h.

22

3) How to adjust the alarm level for the time

The alarm level for the time cannot be set from software; it is a local setting only.

After having selected this level by the " VAL" button from . Figure 6

SET


The first hyphen is flashing.

The value of the time level is implicitly expressed in minutes. The range is from 0 to 99 minutes.

The adjustment procedure is identical to that for the other levels, with the exception that there are only two digits to set and there is no adjustment of the unit.

4) How to adjust the incremental dose

Incremental dose is the amount of dose acquired by Dosicard before it beeps once.

After having selected this level by the " VAL" button from . Figure 7

SET

mrem


The second hyphen is flashing.

The value of the incremental dose can be adjusted between 0 and 99.9 mrem.

The adjustment procedure is identical to that for the other levels, with the exception that there is no adjustment of the unit (mrem is compulsory).

23

24

− − − − −

4.2. SETUP VIA DATA BASE SOFTWARE

The data base software allows to set the five following alarm levels: manual dose, dose rate, dose in current day, month dose, 3 month dose.

Consult the relevant user manual.

5. OPERATION

WARNING / SAFETY PRECAUTIONS:

Do not take the dosimeter out of its pocket. Do not put other objects in the pocket.

Do not put the Dosicard in direct sunlight, for example on the back shelf of a car. It is inadvisable to bring a Dosicard near a functioning portable telephone or a walkie-

talkie, or, generally near any electromagnetic source emitting a magnetic field higherthan the range detailed paragraph 7.1.4. For the same reason, do not put the dosimeter on a television set, a microwave oven or a high frequency welding kit

INSTRUCTIONS FOR USE:

The badge must always be carried in its vinyl pocket, with the detector facing forwards.

The badge must be placed in its pocket, so that the LED alarm can be easily seen and the display can be seen simply by lifting the badge into the horizontal position without having to remove it from the pocket.

To activate the liquid crystal display (when the display is time-controlled), press on any one of the buttons.

Battery life depends on how often the visual and audible alarms are triggered. Avoid testing them too often.

Never open the back cover without a reason. There is a risk that the date and time setting may be lost.

As soon as the low battery pictogram appears, and particularly before opening the back cover, read paragraph 7.2 of this manual.

25

5.1. OPERATING MODES

The various modes of configuration and hence of use of the Dosicard enable all the dose measurement needs of a user to be covered, whether in his normal life or in specific work conditions.

The configuration modes of the Dosicard are as follows:

26

− "PERMANENT" mode (operating default mode): In this mode, Dosicard collects the dose data 24 hours a day.

rem.

The top left corner triangle is always blinking. This mode is suitable for personnel who move from site to site yet report to a center which possesses an LCB badge reader and the DOSEMANAGER attribution software. All of the Dosicard’s functions are available in this mode. By means of the computer system to which it is attached, the wearer of such a badge can keep track of his dosimetry and carry out the relevant processing, both on the badge and on the information that has been gathered.

−

−

"STAND-BY" mode: In this mode, the Dosicard will only integrate doses within a controlled area. Dosicard collects dose data from the time the wearer checks in at an entrance entrance reader to the time when he checks out at an exit reader.

The top left corner triangle is not blinking: Dosicard does not collect any dose. The dose recorded is the dose taken inside a controlled area. Top left corner triangle is blinking inside the controlled area and fixed outside. The detector part is powered only inside the controlled area.

This mode can be used in order to save the battery power when Dosicard is on the shelf.

The use of a Dosicard in "Stand-by" mode requires a hardware and software environment which are both adapted to the situation, and can enable management of dose measurement and site access for several hundred people. This mode is suitable for the dosimetry control of people who work inside buildings whose areas are defined by entrance and exit readers.

"DAILY TIMER" mode: In this mode, the Dosicard collects doses only within a preset daily time slot. The Dosicard will activate its integration function by itself at the beginning of the time period and de-activate it at the end of the period.

NOTE When the badge’s time setting is not correct, for example after a late battery change without a time reset by an LCB badge reader, the manual dose and dose rate functions remain valid, but the dose history will cease to have any meaning.

Dosicard badges are configured in "Permanent" mode at the factory with a user code of 1000 and a time delay of 4 minutes for the screen. In "Permanent" mode the badge integrates doses 24 hours a day, even when the screen is not lit up.

The three buttons, MODE, VALidation and SCROLL provide access to the main functions. An audible beep is emitted each time an active button is pressed.

5.2. “PERMANANENT” MODE DETAILED INSTRUCTIONS

This mode for the Dosicard is the default mode.

In this mode, the configuration of the Dosicard is factory set as follows:

27

− − − −

− − −

Manual modification of the levels is authorised. The manual dose function is activated. In case of alarm, the red LED and the buzzer are activated. The duration of the audio (buzzer) and visual (red LED) signals corresponding to the setting off of an alarm is limited to 32 seconds. The display switches off automatically after 4 minutes, without depressing any button. The unit by default is Rem. The user code to access to the dose history is 1000.

The options described above may be modified at any time by the attribution software via a badge reader.

NOTE: If the display is off, it can be switched on again by simply pressing one of the three buttons.

Access to the various functions available in "Permanent" mode is obtained by pressing the " MODE" button successively. The functions will be presented in the following order : − − − − − −

display displayof the manual dose, display displayof the dose rate, display displayof the daily dose, the test function, the coded access file function => display displayof the dose history, the alarm function => programming the alarm levels.

To change from the "Alarm setup / Dose history" function to the “manual dose” function , press the button a second time.

Manual Dose

Doserate

Dose in Current Day

Alarm setup /Dose History


Hp mrem)))*

Hp mrem/h)))

Hp mrem)))

.

)))

SET )))

Sleep

5.2.1. Manual dose function

The Manual dose function enables the wearer of the badge to view a dose that has been integrated

between two instants. Both instants are determined by the wearer by pressing the button.

The display will show Figure 9 below :

*Hp mrem

28

Figure 9

The mrem or rem units are automatically changed when the measurement range changes:

The triangle indicating the state of the badge must be flashing for this mode to be activated.

When the star is flashing, it indicates that a manual dose is being integrated (following a "START")

− −

0 mrem to 999.9 mrem, 1 rem to 100 rem.

The wearer activates the "Manual dose" function using the " VAL" button:

A first touch on " VAL" determines the "START" time and begins to integrate the manual dose.. −

When the " VAL" button is pressed the first time: − • the star begins to flash, • the previously displayed dose is set to zero, • the integrated dose since the "START" is displayed.

A second touch on “ VAL" determines the "STOP" time and stops integrating the manual dose. −

When the " VAL" button is pressed the second time: − • the star stops flashing, • the dose integrated since the "START" time continues to be displayed but is no longer updated.

A third touch on " VAL" determines a new "START" time, and the star will start to flash again. −

By extension, successive pressing of the " VAL" button enables the manual dose function to be started or stopped.

Since the star flashes only when the manual dose function is active, a quick glance at the display shows the function’s status.

To see the elapsed time since the "START", press the " SCROLL" button.

The display will show Figure 10, as follows :

*

The star indicates the active (flashing) or inactive (continuous) state of the manual dose function

Figure 10

Figure 10

Minutes and seconds from 00:00 (00 min. 00 sec.) to 59:59 (59 min. 59 sec.), then hours and minutes from 01:00 (01 hr. 00 min.) to 99:59 (99 hr. 59 min.)

This screen allows the elapsed time since the activation by a "START" of the manual dose function to be viewed (in the present case, either 1 minute and 22 seconds or 1 hour and 22 minutes).The elapsed time increments in 2 second steps when the displayed time is in minutes and seconds.

Afterwards, if the increment in the elapsed time (the scrolling of the last digit) no longer occurs every two seconds, this means that the time that has passed since the "START" is more than 1 hour. If this is the case, the time displayed is expressed in hours and minutes.

When the elapsed time exceeds 99 hr. 59 min., the display begins to flash and the time no longer increments.

Each press of the " SCROLL" button toggles the display between manual dose and elapsed time.

The manual dose function may be started or stopped by pressing the " VAL" button when the display is in the elapsed time mode ( ).

29

5.2.2. Dose rate function

Access to the dose rate function is obtained by pressing the " MODE" button from either or in the Dose in Current Day function.

Figure 9Figure 10

The dose rate function enables the value of the instantaneous dose rate measured in real time to be viewed.

In this mode the display shows , as follows : Figure 11

Hp mrem/h

Thfo

Ttma

mrem/h or rem/h unit defining a measurement of the dosage rate

Th− − −

Thdo

Pr

he triangle indicating he state of the badge ust be flashing for the

ctivation of this mode.

Figure 11

e flashing dot indicates that the dose rate measurement function is activated. The H p logo stands r the equivalent dose rate per person.

•

e mrem/h or rem/h units are automatically changed when the measurement range changes : 0 mrem/h to 999.9 mrem/h 1 rem/h to 99.9 rem/h > 100 rem/h flashing

e operator’s actions in this mode are limited, as he can only read the value of the instantaneous se rate measured by the Dosicard.

essing the " SCROLL" or " VAL" buttons will have no effect.

30

5.2.3. Dose in current day function

Access to the function for viewing the daily dose is obtained by pressing the " MODE" button again when (display of the dose rate) is being displayed. Figure 11

In this mode, the display will show , as follows : Figure 12

Figure 12

Hp mrem

The triangle indicating the state of the badge flashes.

mrem or rem units (as for the manual dose function).

Unlike the screen for the manual dose, the star does not appear in this display mode.

The wearer can see the value of the integrated dose for the day.

The value of the dose is reset to zero at 00 hr 00 every day.

NOTE : The daily dose will not be displayed if the Dosicard’s date and time have not been set.

31

5.2.4. Test function

The test function lets you quickly check the Dosicard’s operation, particularly the display and alarms, and verify the current settings for the alarm levels.

Access to the test function of the Dosicard is obtained by pressing the " MODE" button from (display of the daily dose).

Figure 12

In this mode, the display will show . This is the default screen that should be seen as soon as test mode is entered :

Figure 13

Figure 13

Figure 13

If the display shows instead, the Dosicard is no longer set to the right date and time : Figure 14

Figure 14

MTH YR

The triangle indicating the state of the badge is flashing.

The triangle indicating the state of the badge is flashing.

The words "MTH" and "YR" are flashing.

The test function of the Dosicard is launched by pressing the “ VAL" button when is being displayed. The test function allows the operation of the buzzer, the LED and all the elements of the display (segments, letters, words, elements and pictograms) to be checked.

Pressing on the " VAL" button activates the buzzer and the red LED for a short time, thensequentially displays the following screens : − − − − −

all of the elements of the display: Figure 15, the level value in force for the manual dose: , Figure 16the level value in force for the dose rate: , Figure 17the level value in force for the elapsed time (the time passed since the "START" signal): Figure 18, the incremental dose value in force: . Figure 19

Figure 19

When its value is nil, that level is not activate.

The display of each of the screens ( to ) lasts for a few seconds in order to allow the presence of all the elements of the display to be verified and to give time to read the various level values.

Figure 15

32

*Hp mrem/h

SET 3 MTH 5 YR ))): .

The triangle indicating the Dosicard’s state, the battery indicator and the dot " " above "Hp" will be flashing.

Figure 15: Screen showing all the elements

Hp mrem

Figure 16: Level value for the manual dose (1 mrem in this example)

Hp mrem/h

The dot will flash.

Figure 17: Level value for the dose rate (3 mrem/h in this example)

Level value equal to zero in this example

Figure 18: Level value for the time

mrem

Level value equal to zero in this example.

Figure 19: Level value for the incremental dose

33

When the sequence of screens Figure 15 to Figure 19 ends, the Dosicard displays the initial screen , corresponding to the entry into test mode, again, as follows : Figure 13

The triangle indicating the state of the badge is flashing

A new test sequence can then be launched by pressing on the " VAL" button.

During the test sequence, the following points must be verified : − − −

The buzzer should sound. The LED should give a short flash. All of the elements of the display should be present.

If any of these points cannot be verified, the Dosicard has an operational fault.

34

5.2.5. Password protected functions

Access to this function is obtained by pressing again on the “ MODE" button from (test function).

Figure 13

In this mode the display will show , as follows : Figure 20

Figure 20

Figure 20

SET

The triangle indicating the state of the badge is flashing. The word "SET"

is continuous. Four hyphens corresponding to the central segment of the figures, with the first hyphen flashing.

From this screen, access may be had to two independent functions, as follows: − −

display of the dose history manual setting of the alarm levels

5.2.5.1. Access to the dose history

The display of the dose history allows the wearer to readthe accumulated dose values for one month, three months, one year and five years.

Access to the display of this data is possible only if the wearer of the Dosicard knows the user code programmed into the badge. The default code programmed into the Dosicard at the factory is 1000.

NOTE : The dose history will not be displayed if the Dosicard’s date and time have not been set.

To access the dose history from screen in , the user code must be entered. This code can be changed at any time by the attribution software via a badge reader.

35

How to enter the user code

36

− When the "SET" mode is entered (screen Figure 20), the first hyphen will flash. Press the " SCROLL" button to change the " − " to " 0 " :

SET

Figure 21

Press the " SCROLL" button again to change the first digit from the 0 to the 1 :

SET

Figure 22

Successive touches on the “ SCROLL" button increments the displayed value by one, up to the value 9.

SET

Figure 23

A further touch on the " SCROLL" button when 9 is displayed (screen Figure 23) will return to the value 0 (screen No. 13).

When the desired value is displayed, press the " VAL" button to accept it. and select the next hyphen.

−

As the default user code programmed at the factory is 1000, you should press the " VAL" button when the display corresponds to Figure 22.

−

The display will then show : Figure 24

Figure 24

The second hyphen flashes.

SET

The triangle indicating the Dosicard‘s state flashes.

From this screen, the value of the second digit of the user code, whose default value is " 0 ", must

be set by successive touches on the " SCROLL" button.

SET

Only the triangle indicating the Dosicard’s state flashes.

Figure 25

Once the value of the second digit is set to the desired value, accept it by pressing the " VAL" button.

The display will then show Figure 26 :

SET

Figure 26

In the same way, the value of the remaining digits are selected and the correct value is validated.

When all four digits have been entered, the screen will appear as follows :

SET

The triangle indicating the state of the Dosicard flashes.

The third hyphen flashes.

The last zero of the user code flashes.

When accept

If the fbe disdose f

If anotbutton

NOTE

At anybutton

will bebuttonwill ret

From

Dosica

The triangle indicating the Dosicard’s state flashes.

Figure 27

Figure 27

the displayed four digit number corresponds to the user code programmed into the Dosicard, ing the fourth digit will give access to the dose history.

our digit number does not correspond to the programmed user code, the dose history display will abled. The Dosicard will then leave the current user code entry mode and return to the manual unction, showing once again : Figure 9

*Hp mrem

her try is required to access the dose history, it will be necessary to press the " MODE" four times in order to enter the user code.

time, the sequence for programming the user code may be exited by pressing the " MODE" . In this case, the Dosicard will return to the manual dose function and the user code procedure

cancelled. During the user code programming function, only the " SCROLL" and " VAL" s are used. If the time taken to validate a digit is greater than about four minutes, the Dosicard urn automatically to the manual dose function and the user code procedure will be cancelled.

, when the four digit number corresponds to the user code programmed into the

rd, a touch on the " VAL" button allows access to the dose history.

37

Dose history

This file allows the wearer to view the following information sequentially :

• the monthly dose, corresponding to the sliding total of the last 30 complete days.

For example: On July 15th 1996, the wearer views the monthly dose. The value displayed will correspond to the dose integrated by the badge from 00:00 on Saturday June 15th 1996 to 23:59:59 on Sunday July 14th. The monthly dose is updated every day at 00:00 (midnight).

30 complete days

Day [(D-1) - 30]June 15th 1996

Day DJuly 15th 1996

Day (D-1)July 14th 1996

Hp mrem

MTH

Figure 28

Figure 28From , press the " SCROLL" button to view the "3 mth" dose.

• the 3 months dose corresponding to the sliding total of the dose for the last 90 complete days.

For example: On July 15th 1996 the wearer views the « 3 monthly » dose. The value displayed will correspond to the dose integrated by the badge from 00:00 on Tuesday April 16th 1996 to 23:59:59 on Sunday July 14th. The « 3 monthly » dose is updated every day at 00:00 (midnight).

90 complete days

Day [(D-1)-90]April 16th 1996

Day (D-1)July 14th 1996

Day DJuly 15th 1996

Hp mrem

3 MTH

Figure 29

Figure 29From , press the " SCROLL" button to view the "YR" dose.

38

• the "YR" dose corresponding to the sliding total of the dose for the last 12 complete calendar months.

For example: On July 15th 1996 the wearer views the "YR" dose. The value displayed will correspond to the dose integrated by the badge from 00:00 on July 1st 1995 to 23:59:59 on Sunday June 30th 1996. The "YR" dose is updated on the first day of every calendar month at 00:00 (midnight).

12 complete months

July 1st 1995

June 30th 1996

Updated at the end of June at 00h00

Day DJuly 15th 1996

Hp mrem

YR

Figure 30

Figure 30From , press the " SCROLL" button to view the "5 YR" dose.

• the "5 YR" dose corresponding to the sliding total of the dose for the last 60 complete calendar months. The "5 YR" dose is updated on the first day of every calendar month at 00:00 (midnight).

Hp mrem

5 YR

Figure 31

NOTE

Successive touches on the " SCROLL" button from Figure 31 will scroll through the dose history again. If no action is carried out for a few minutes, the Dosicard will leave the dose history and return automatically to the manual dose. Pressing the " MODE" button will quit the dose history at any time and return to the manual dose function :

*Hp mrem

5.2.5.2. Setting the alarm levels

Consult paragraph 4.1.

39

5.3. ALARMS AND INDICATORS FUNCTIONS

In general, a triggered alarm is manifested by three elements: the buzzer, the LED and the liquid crystal display :

40

− −

The buzzer generates audio signals, which vary according to the type of alarm. The red LED gives a short flash once every second, whatever the type of alarm.

1 second< >

−

− − −

− −

The liquid crystal display indicates the type of alarm which has been or is being set off.

Other alarm configurations can be defined with the attribution software and a badge reader.

For instance, you can : Activate or de-activate the buzzer Activate or de-activate the LED Select an unlimited continuous audio signal which continues until the wearer stops it, or select an audio alarm that continues for 32 seconds.

The values of the levels are programmed into the badge by the attribution software using a badge reader :

if the value of the level is 0, the alarm is not activated, an alarm is activated by programming a level other than 0.

5.3.1. Manual dose alarm

The manual dose alarm is triggered when the integrated manual dose is greater than the manual dose’s alarm level.The manual dose alarm can be triggered onlyalarm if the badge’s manual dose function is activated.

When a manual dose is triggered, the display will show , : Figure 32

Figure 32

Figure 32

The star is continuous.

Hp mrem

)))*: .

The Hp symbol and the triangle indicating the badge’s state will flash.

The alarm pictogram .))) will flash.

The level value for the manual dose is displayed.

The meaning of the alarm pictogram is as follows : − −

−

it does not appear if no alarm has been activated. it is continuous when at least one of the alarm levels has been activated (the value of the alarm’s threshold is other than zero). it flashes when one of the alarm thresholds has been exceeded,.

During the complete duration of the alarm, the buzzer will emit the following audio signal:

1 second< >

This audio signal may be unlimited or limited to 32 seconds, depending on the configuration that has been programmed.

The audio signal is accompanied by the flashing of the red alarm LED.

When the audio signal stops because it has been limited in time, the visual display ( ) will remain until it is cancelled by the wearer.

A dose rate alarm can be cancelled by pressing the " VAL" key.

This cancellation will stop the buzzer if it is still audible, and allows display of the other badge functions.

When the audio signal stops because it has been limited in time, Figure 33 will remain on the display

until it is cancelled by the wearer pressing the " VAL" key.

41

5.3.2. Dose rate alarm

The dose rate alarm is triggered when the measured dose rate is greater than the dose rate’s alarm level.

The dose rate alarm can be triggered only if the badge is activated (the indicator triangle is flashing).

The delay in setting off an alarm on the dose rate may be relatively long (more than a minute for low rates) so as to integrate a sufficient number of measurements, creating a good statistical accuracy. This delay assures that a real alarm has been triggered, avoiding false alarms.

When an alarm on the dose rate is triggered, the display will show Figure 33,:

Hp mrem

))): .


The value of the peak dose rate is displayed.

The− −

−

The

Thibee

The

Whunt

An

Thi

The H p symbol and the triangle indicating the badge’sstate will flash.

•

Figure 33

Figure 33

significance of the alarm pictogram is : it does not appear if no alarm has been activated. it is continuous when at least one of the alarm levels has been activated (the value of the alarm’s threshold is other than zero). it flashes when one of the alarm thresholds has been exceeded,.

buzzer will emit the following audio signal while the alarm is active:

1 second< >

s audio signal may be unlimited or limited to 32 seconds, depending on the configuration that has n programmed.

audio signal is accompanied by the flashing of the red alarm LED.

en the audio signal stops because it has been limited in time, will remain on the display il it is cancelled by the wearer.

alarm on the dose rate is cancelled by pressing the " VAL" key.

s cancellation will stop the buzzer if it is still audible, and allows display of the other badge functions.

42

5.3.3. Daily dose alarm

The daily dose alarm is triggered when the integrated dose is greater than the daily dose’s alarm level.When a daily dose alarm is set off, the display will show Figure 34, :

Hp mrem

)))*: .


The Hp symbol and the triangle indicating the badge’s state will be flashing.

Figure 34

Figure 34

The value of the level for the daily dose is displayed.

The significance of the alarm pictogram is as follows: − −

−

it does not appear if no alarm has been activated. it is continuous when at least one of the alarm levels has been activated (the value of the level is then other than zero). it flashes when one of the alarm levels has been exceeded.

the buzzer will emit the following audio signal while the alarm is active:

1 second< >



When the audio signal stops because it has been limited in time, will remain on the display until it is cancelled by the wearer.

An daily dose alarm is cancelled by pressing the " VAL" key.


The " MODE" and " SCROLL" keys will have no effect.

43

5.3.4. Time alarm

The time alarm is triggered when the elapsed time is greater than the time alarm level.

When a time alarm is set off, the display will show Figure 35 :

)))

The alarm pictogram .))) will be flashing.

Figure 35

Figure 35

The value of the time level is displayed.

The significance of the alarm pictogram is as follows : − −

−

it does not appear if no alarm has been activated. it is continuous when at least one of the alarm levels has been activated (the value of the level is then other than zero). it flashes when one of the alarm levels has been exceeded.

During the complete duration of the alarm, the buzzer will emit the following audio signal :

1 second< >



When the sound signal stops because it has been limited in time, will remain on the display until it is cancelled by the wearer.

A time alarm is cancelled by pressing the " VAL" key.



44

5.3.5. Monthly dose alarm

The monthly dose alarm is triggered when the integrated monthly dose is greater than the monthly dose’s alarm level.

When a monthly dose alarm is set off, the display will show Figure 36:

Hp mrem

)))MTH

: .


The Hp symbol will flash.

Figure 36

The value of the monthly dose level is displayed.

The significance of the alarm pictogram is as follows : − −

−

it does not appear if no alarm has been activated it is continuous when at least one of the alarm levels has been activated (the value of the level is then other than zero) it flashes when one of the levels has been exceeded.

During the 12 second duration of the alarm, the buzzer will emit the following audio signal :

1 second< >


When the audio signal stops after 12 seconds, Figure 36 will remain on the display until it is cancelled by the wearer.

A monthly dose alarm is cancelled by pressing the " VAL" key.



45

5.3.6. Three-month dose alarm

three-monththree-monthThe three-month dose alarm is triggered when the integrated dose for the last ninety days is greater than the three-month dose’s alarm level.

When a three-month dose alarm is set off, the display will show , as follows: Figure 37

Figure 37

Hp mrem

)))3 MTH

: .

The alarm pictogram .))) will be flashing.

The Hp symbol will be flashing.

The value of the three-month dose level is displayed.

The significance of the alarm pictogram is as follows: − −

−

it does not appear if no alarm has been activated. it is continuous when at least one of the alarm levels has been activated (the value of the level is then other than zero). it flashes when one of the levels has been exceeded

During the 12 second duration of the alarm, the buzzer will emit the following audio signal:

1 second< >


When the audio signal stops after 12 seconds, Figure 37 will remain on the display until it is cancelled by the wearer.

A three-month dose alarm is cancelled by pressing the " VAL" key.

This cancellation will stop the buzzer if it is still audible, and allows display of the other badge functions


46

5.3.7. Indicators

The following indicators are given mainly by the buzzer, and it is not necessary to press the " VAL" key to redisplay of the badge’s other functions.

5.3.7.1. Incremental buzz indicators

This type of indicator consists of an audio signal emitted by the buzzer and a light signal emitted by the LED each time the increment of dose received by the badge reaches the programmed value.

For this indicator to work, the triangle indicating the state of the Dosicard must be flashing.

The audio signal lasts for 4 seconds and it has the following form :

1 second< >

5.3.7.2. Indicator that a level value has been taken into account

The taking into account of a new value for a level (see paragraph 4.1 for the procedure of the

adjustment of the levels) by pressing on the " VAL" key is accompanied by an audio signal which lasts for 2 seconds, as follows:

2 seconds< >

47

6. MAINTENANCE

6.1. NORMAL MAINTENANCE

The Dosicard must always remain in its transparent vinyl protective pocket. This pocket protects it from dirt, humidity, shocks, contamination, etc.

The pocket also helps to position the badge optically in the entrance and exit readers (BIO) for controlled areas as well as in the LCB badge reader.

When protected in this way, the Dosicard does not need any particular maintenance. However, if necessary, the body of the badge and the pocket can be cleaned with a non-felting material, lightly dampened with alcohol. The use of other solvents is not advised.

Replacement of the protective pocket:

If the badge is removed and replaced in the protective pocket, this can rupture the pocket’s heat seals and damage the pocket. It is therefore not advisable to take the badge out of the pocket.

If the pocket should become damaged, replacement protective pockets (code 41495) and fixing clips (code 41993) can be purchased from your nearest Canberra agent.

Since they cost very little,, Canberra advises that you replace contaminated pockets. Nevertheless, the pocket may be decontaminated by means of detergents or solvents which are compatible with vinyl.

Canberra also advises that you replace the pocket when you replace the battery.

6.2. TROUBLE SHOOTING

SYMPTOMS ACTIONS

LCD screen off The activation of the LCD screen can be timed in order to save the battery. In this case, a simple pressure on one of the Dosicard’s three buttons will activate the screen for the programmed duration (typically 4 minutes).

Low battery pictogram activated

The (low battery) pictogram appears when the battery’s charge is low. The buzzer will be activated every hour (7 long beeps). Refer to § 7.2.

Low battery pictogram and “HS” symbol

activated

The “HS” symbol appears 48 hours after the activation of the (low battery) pictogram. From then on, the Dosicard no longer measures doses. Refer quickly to § 7.2.

“StoP” displayed The “StoP” message appears five days after the “HS” symbol, that is, a week after the (low battery) pictogram is activated.

The battery is then completely down The Dosicard no longer measures doses and the clock has stopped. Nevertheless, the history of the integrated doses is preserved in EEPROM memory. In the absence of battery, the content of the EEPROM memory will be saved for 10 years.

No access to the dose history

Access to the dose history (1 month, 3 months, 1 year and 5 years doses) is protected by a user code. The code defined at the factory before delivery is: 1000.

If access is denied to the dose history, check whether the original access code has been modified later by the user (by means of the LCB badge reader).

48

49

7. APPENDICES

7.1. TECHNICAL CHARACTERISTICS

7.1.1. Nuclear characteristics

Dose equivalent : Measurement of the gamma dose equivalent Hp(10) according to the ICRU 39 recommendations.

Certification : French CTHIR (Technical Center for Approving Radioprotection Instrument) authority: in total conformity with the IEC 60846 standard.

Detector : Energy compensated silicon diode (position indicated by an arrow)

Sensitivity : Sensitivity: 21 cpm per mrem/h or 1260 c/mrem

Response to γ rays : <+/- 15% from 60 keV to 1.25 MeV ; <+/- 30% from 50 keV to 2 MeV

Isotropy : 60Co: <+/- 20% in a 90° cone ; <+/- 50% in a 75° cone

Measurement range : Dose equivalent: from 0.1 mrem to 1000 rem

Dose rate: from 0.1 mrem/h to 100 rem/h

Accuracy : <+/- 15% for 137Cs, up to 100 rem/h

Digital display : Dose 0 to 999.9 mrem, then 1 to 999.9 rem, blinking display and alarm above.

Rate 0 to 999.9 mrem/h, then 1 to 99.9 rem/h, blinking display and alarm above.

Operating flag : Flashing triangle in top left-hand corner of the display when active.

Alarms : 70 dB buzzer with different signals according to the type of alarm (dose or dose rate)

Flashing red LED (1 flash per second)

Flashing pictogram alarm, display of the level exceeded and the peak rate.

Adjustable alarm levels : Manual dose, daily dose, monthly and 3-monthly doses: 1 mrem to 1000 rem.

Dose rate: from 1 mrem/h to 100 rem/h

Working time from 1 to 99 minutes. Incremental dose.

Data recorded : Full identification of the wearer and the badge.

Sliding history of the last 100 doses of adjustable duration, of the 90 previous daily doses and the 60 previous monthly doses.

Cumulative doses for the day, the calendar month, the last 30 days, the last 90 days, the last 12 months, the last 60 months, the career time.

The last 6 times an alarm level was exceeded, qualified, quantified, dated and timed.

Configuration of a badge by the LCB reader : "Permanent" mode: continuous operation and permanent integration of

the doses.

"Timer" mode: integration of the doses within a daily time period.

"Zone" mode: integration of the doses within the controlled zones only.

0

0,2

0,4

0,6

0,8

1

1,2

10 100 1000

E (keV)

R' Hp (10)

Irradiation on PMMA phantom range of caesium 137

R[Hp(10)] = 1.04 “ mrem ” / mrem

Figure 38: Relative response (137Cs) as a function of the photon energy

00,20,40,60,8

11,21,41,61,8

2

-90 -75 -60 -45 -30 -15 0 15 30 45 60 75 90

Angle (degrees)

R'/R'th

Relative response (alpha)

Relative response (théta)

Irradiation on PMMA phantomwith gamma of 60Co

Figure 39: Relative response (60Co) as a function of the incident angle

HORIZONTAL PLA

50

VERTICAL PLAN :

θ

Phantom plan

Phantom plan

N

α = 0

= 0

0

0,2

0,4

0,6

0,8

1

1,2

1,4

1,6

1,8

2

-90 -75 -60 -45 -30 -15 0 15 30 45 60 75 90

Angle (degrees)

R'/R'th

Relative response (alpha)

Relative response (théta)

Irradiation on PMMA phantom with gamma of 65 keV

Figure 40: Relative response 65 keV as a function of the incident angle

7.1.2. Electrical characteristics

Power supply : standard CR2450 lithium battery (3V, 540 mAh), hourly voltage check. Autonomy : about 5 months in " permanent" mode, about 1 year at 8 hours a day. Backup : complete history of the doses and the times the alarm levels were exceeded and

the identities of the wearer and the badge, for 10 years without battery power (EEPROM)

7.1.3. Mechanical & environmental characteristics

Dimensions/Mass : 3.5 X 2.25 X 0.35 inches / 50 grams, 3.86 X 3.94 X 0.37 inches / 65 grams with pocket/clip

Temperature range : From -10°C to +60°C (14°F to +140°F) in normal use ; relative humidity: 80% Protection class : IP67 for the dosimeter in its transparent decontaminatable vinyl pocket Shocks : Conforms to the CEI 60846 standard

7.1.4. Electromagnetic compatibility

CE conformity : Equipment wears the "CE" label of the conformity for electromagnetical compatibility

Tests and controls have been carried out by reference to the following two generic standards: −

−

−

−

−

NF EN 50081 - 2 december 93 "Electromagnetic compatibility - Generic emission standard Part 2: Industrial environment" NF EN 50082-2 june 95 "Electromagnetic compatibility - Generic immunity standard Part 2: Industrial environment"

and the following basic standards: NF EN 55022 december 1994 "Limits and characteristic measurement methods for radioelectric perturbation produced by data processing equipment" NF EN 61000-4-2 june 1995 "Electromagnetic compatibility – Part 4 Section 2: Tests of immunity to electrostatic discharges" NF EN 61000-4-3 february 1997 "Electromagnetic compatibility - Part 4 Section 3: Tests of immunity to radiating electromagnetic fields"

51

Table of the CEM compliance limits:

10

kHz 80 kHz

100 kHz

200 MHz

800 MHz

900 MHz

960 MHz

1 GHz

1,4 GHz

1,89 GHz

2 GHz

4 GHz

10 V/m Comply with the 61000-4-3 level 3 standard

20 V/m Comply

with the ENV 50-

204 standard

Comply with the ENV 50-

204 standard

30 V/m Comply with the 61000-4-3 level 4

standard Comply with the

61000-4-3 level 4 standard

40 V/m Comply with the 61000-4-3 level > 4

standard

50 V/m Comply

with the ENV 50-

204 standard

Comply with the ENV 50-

204 standard

100 V/m Test method CEI 801-3 Test method CEI 801-3

200 V/m Test method CEI 801-3 CEM compliance limit of the

DosicardTM

52

7.2. WHEN AND HOW TO CHANGE DOSICARD BATTERY

The Dosicard is supplied with a battery which is a standard lithium 3 V button battery, CR 2450 type (article code 41514), available in watchmakers’ and photographers’ shops. The life of the battery is 5 months in "permanent" mode and up to about one year in "Stand-by" and "Daily timer" modes.

The Dosicard itself carries out an hourly check of the battery voltage.

53

− At the first negative check, the (low battery) pictogram will start to flash. −

−

−

•

After this, at each negative hourly check, the buzzer emits 7 long beeps and the date and time are memorised. 48 hours after the first negative check, the dose measurement function of the badge will be de-activated and the "HS" (Hors Service = Out of service) symbol will appear continuously on the screen. One week after the first negative check, all the functions of the badge will be stopped, and the indication "StoP" will appear on the screen. From this moment, the badge no longer tells the right time.

7.2.1. When to change the Dosicard battery?

It is strongly recommended to change the battery as soon the battery symbol appears on the LCD display.

• Two days after the battery s

•

and the configuration has very high p•

ymbol was displayed, the text "HS" (Out of order) appears an the dosimetry capabilities are not longer valid because the analog part of the Dosicard is not powered to save the remaining electric power. Then, there is a potential risk that Dosicard loses its time information and in a few cases, its complete configuration (display of "5S"). Dosicard can be blocked (no change available, alarm not valid) in case of use of bad quality battery.

Seven days after the battery symbol was displayed, the text "StoP" (clock stopped) means that the time will certainly be corrupted

robability to be modified. It is therefore highly recommended to change the battery AS SOON AS POSSIBLE after the symbol

is displayed and before "HS" or "StoP" appear. This has to be done assuming a good feedback of each Dosicard which is not in use (stock, holidays, etc...).

• The recommended batteries are: DURACELL and VARTA.

54

•

•

emory (EEPROM) even without b

If Dosicard configuration has changed, we recommend to configure it with one LCB badge reader. This can be

by the customer, representative or by Canberra if suspected Dosicard is sent to local service center. Whatever happens, historical data are available for 10 years in non-volatile m

done

attery.

7.2.2. How to change the Dosicard battery?

55

•

• Unscrew the metal screw l

Remove Dosicard plastic protection pocket by sliding it parallel to the edge.

ocated on the rear panel: Dosicard is now no longer powered.

• Slide the battery while you compress the spring and remove it by the top.

• Place the(CR2450 m

Screwdriver

new battery odel – our code

41514), negative side (smaller side) facing out.

56

• Fit the cover’s side clip in the Dosicard’s housing hole on the edge with 30° angle. Be sure that the screw is in its position while you install the metallic cover.

• Close the cover firmly and hold it in position to avoid movement. One beep and one light flash are emitted to confirm that the cover is properly seated.

• While maintaining pressure on the cover, tighten the screw.

57

NS SYMPTOMS ACTIO

e emitted when you

all the time.

en.

Reopen the cover and waitthen close it again firmlyt. One belight flash are emitted to coproperly seatoperation.

ge, the daily re not readable and the blinking on the LCD

ime parameter.

Set the Dosicard’sDOSE MANAmandatory for this setting.

Neither beep nor flash arclose the cover.

The red LED remains on

No display on the LCD scre

for at least 1 minute, ep and one

nfirm that the cover is ed. If this is not the case, repeat the

TIME LOST: If after the battery chandose and historical data a"month"/"year" symbol are display, Dosicard lost its t

This usually occurs when the battery is changed or when the rear metallic cover is opened WITHOUT the low battery symbol or "HS" symbol displayed. It may also happen when the battery is dead ("StoP" displayed) or the battery is good but the rear metallic cover has not been closed correctly.

time in the with one LCB and GER software. The LCB reader is

58

7.3. TEST PR

E ction t m

A

T aragraph 4.

7.3.1. D

In m o che se over a period of 24 h y natural radioactivity.

If meter, send your Dosicard to the nearest Canberra a

7.3.2. C

T e can be carried out by Canberra.

T on quantity is the personal dose equivalent Hp(10), which is expressed in rem.

OCEDURE

very Dosicard badge has an internal test funidnight.

which is automatically launched once per day a

test can also be performed manually.

o start the test procedure, see p

ose integration test

order to check that the Dosicard’s dose measuref a test bench, the simplest solution consists ofours corresponds to the dose generated b

ent function is in fact operational, in the absencecking that the integrated do

there is any doubt about the operation of the dosigent for a general check and/or calibration.

alibration and checks

he calibration of a dosimeter of the Dosicard typ

he unit of calibrati

59

uzzer) and visual (red light-emitting diode) alarms.

ows (see section 4.1): manual dose, dose rate, time, d three-month dose.

appears when an alarm is present, that is to say when the corresponding level

− The buzzer is a sound warning. uzzer is 70 dB, next to the badge, without its pocket.

− An audible beep is emitted each time one of the

7.4. GLOSSARY

Alarm, Alarm levels

The Dosicard is equipped with audible (b

The programmable alarm levels are as follincremental dose, daily dose, monthly dose an

The alarm pictogram •))) is not zero.

Audible alarm, Beep, Audible beep: See Buzzer

Buzzer

The maximum intensity of the b

, , buttons is pressed.

2 rapid short beeps per second : manual dose level exceeded

4 short beeps per second : dose rate level exceeded

4 times 2 rapid short beeps : increase of the dose value by the incremental dose

1 long beep per second : working time exceeded

3 rapid short beeps per second : daily, monthly or 3-monthly dose exceeded level

7 long beeps every hour : low battery

− Doserate: Visual (LED) and audible alarms are automatically acknowledged when the doserate falls below the alarm level.

When an alarm has been triggered, the peak rate will automatically be updated on the display to inform the worker. When the rate has fallen below the alarm level, the alarm can be cancelled by pressing the star button. The worker cannot acknowledge the displayed alarm if Dosicard is still triggering the alarm because the worker is not supposed to read a display when it is time to escape from a high level of dose!

When Dosicard is triggering the alarm, it automatically starts the manual dose to give the worker an additional information of the cumulative dose during this alarm period. The manual dose is stopped when the worker acknowledges the maximum rate display via the star button.

− Integrated dose: The cumulative dose alarm is automatically acknowledged after 30 seconds.The worker does not need to go to a reader to acknowledge the alarm.

− Specific sound signals are emitted when an alarm is tripped:

60

, Buzz dose, Incremental dose

cific audible signal emitted by the buzzer, consisting of 4 times 2 short rapid

incremental

etc.

k at the display of the Dosicard.

The access code for manual setting (using the 3 buttons) of the alarm levels (manual dose, dose rate, remental dose) is always - - - - (validation of the 4 hyphens, which cannot be modified).

Th ric file, or user code, entered at the factory is 1000. This code may be

All depending on the ex

An d der to authorize access to the corresponding control zone.

De or, S i

Th is a silicon

Th

Th r so as to optimise its response in energy and its isotropy.

Ththe

In « T

Dis

Wh stal display enables the following elements to be viewed:

S

U mrem, rem, mrem/h, rem/h

S

Hp for the dose rate (dose-equivalent rate)

Buzz

Buzz describes a spebeeps.

Buzz occurs each time the integrated dose increases by a given amount referred to as the dose. For example, if the incremental dose is 0.3 mrem, the buzz signal will be heard when the integrated dose reaches 0.3 mrem, 0.6 mrem, 0.9 mrem, 1.2 mrem,

The frequency with which this signal is repeated gives an idea of the level of the dose rate without having to loo

Code, Access code, User code

time, inc

e code for access to the dosimet changed by the user by means of the LCB badge reader.

accesses by means of the LCB badge reader c be ive different passwords, an g ntent of the authorisations.

intervention code must be type on the badge access rea

tector, Silicon diode detect ol d detector

e detector in the Dosicard diode.

e position of the detector is indicated by a dot located on the front surface of the badge.

e detector must be pointed up front of the weare

e status triangle of the badge flashes when the dose measurement function is activated, that is, when detector and amplifier analog circuits are powered.

order to extend battery life, the analog part of the badge is not powered outside the time period in imer » mode or outside the controlled zone in "Zone" mode.

play, Liquid Crystal Display, lcd

en activated, the liquid cry

egments: 7 segments for each of the four digits (0 to 9) or alphanumeric characters (----, tESt, HS, StoP)

nits:

ymbols: Hp for the dose (dose-equivalent) •

61

, Cumulative dose, Maximum allowable doses

STOP ", given either manually

The integrated dose is the dose received in the current day.

e result of the addition of the integrated doses for the 30 previous

revious

/h during 2000 hours of work a year.

ar can be reached by aircrew on long-distance flights (0.25 mrem/h, or

a natural radioactivity level of 0.01 mrem/h is about 0.1 rem per year (0.25 mrem per 24 hours, 7 mrem per month).

ing a chest X-ray is of the order of 30 mrem.

•

t Hp (10) which penetrates to a depth of 10 mm

(rem per hour).

ctivity at sea level is slightly less than 0.01 mrem/h. Natural radioactivity is higher in some regions or in altitude (0.25 mrem/h in a subsonic plane, 1.1 mrem/h in

Incremental dose: See Buzz

In neous dose rate: See

L ght-Emitting Diode

Light-emitting diode

The red light-emitting diode is a luminous warning which is visible to the wearer when the Dosicard badge is worn in the pocket in the correct position, that is, with the diode at the top of the protective pocket.

When an alarm is tripped, short flashes are emitted by the diode at a frequency of one flash per second, whatever the type of alarm.

The visual alarm is normally given at the same time as the audible alarm and the flashing of the display (particularly the alarm pictogram •))) ).

Dose, Manual dose, Integrated dose

Throughout the text, the " dose-equivalent " quantity is referred to as "dose". The symbol used is Hp: H for the dose-equivalent and p for personal.

The Dosicard measures the personal dose-equivalent which penetrates to a depth of 10 mm of tissue equivalent in accordance with ICRU 39 recommendations.

The manual dose is the dose integrated between a " START " and a " (two button presses by the wearer) or by the system (passage through a badge entrance reader and then through a badge exit reader)

The "MTH" cumulative dose is thdays.

The "5 YR" cumulative dose is the result of the addition of the cumulative doses of the 60 pcalendar months. − A dose of 5 rem per year corresponds to a rate of 2.5 mrem− A dose of 1.5 rem per year corresponds to a rate of 0.75 mrem/h during 2000 hours of work a year. − A dose of 0.5 rem per ye

2.8 mrem on a Paris-Los Angeles flight). − A dose corresponding to

− For comparison purposes, the dose received dur

Dose equivalent: See Dose

Dose rate, Instantaneous dose rate, Rate

Throughout the text, the "dose-equivalent rate " is referred to as the "rate" or the "dose rate". The

symbol used is Hp: H for the dose-equivalent, p for personal and • for the rate.

The Dosicard measures the rate of deep dose-equivalenof tissue equivalent in accordance with the ICRU 39 recommendations.

The dose rate is expressed in mrem/h (millirem per hour), rem/h

The level of the mean natural radioa

Concord and 3.5 mrem/h in low terrestrial orbit).

stanta Dose rate

ed: See Li

Liquid crystal display, lcd: See Display

Pictograms: See Display

62

e biological point of view.

hich is the personal dose-equivalent which penetrates to a depth of mmendations.

The alarm level for the time allows, for example, the time of an operation to be limited.

Th (pa

Th ration time of the manual dose exceeds the programmed tim

Vis

Rem, millirem

The dose-equivalent describes the risk of irradiation from th

For individual supervision, the personal dose-equivalent is often used. Its symbol is Hp, H for the dose-equivalent and p for personal.

The Dosicard measures Hp(10), w10 mm of tissue equivalent, in accordance with ICRU 39 reco

Silicon diode: See Detector

Time, Working time, Operation time

e time period can be started by a "START" given manually (by pressing a button) or by the systemssage through the badge entrance reader of a controlled zone).

e time alarm will be set off when the intege level.

ual alarm: See Light-Emitting Diode

____________________________________________________________

Warranty

Canberra (we, us, our) warrants to the customer (you, your) that for a period of ninety (90) days from the date of shipment, software provided by us in connection with equipment manufactured by us shall operate in accordance with applicable specifications when used with equipment manufactured by us and that the media on which the software is provided shall be free from defects. We also warrant that (A) equipment manufactured by us shall be free from defects in materials and workmanship for a period of one (1) year from the date of shipment of such equipment, and (B) services performed by us in connection with such equipment, such as site supervision and installation services relating to the equipment, shall be free from defects for a period of one (1) year from the date of performance of such services.

If defects in materials or workmanship are discovered within the applicable warranty period as set forth above, we shall, at our option and cost, (A) in the case of defective software or equipment, either repair or replace the software or equipment, or (B) in the case of defective services, reperform such services.

LIMITATIONS EXCEPT AS SET FORTH HEREIN, NO OTHER WARRANTIES OR REMEDIES, WHETHER STATUTORY, WRITTEN, ORAL, EXPRESSED, IMPLIED (INCLUDING WITHOUT LIMITATION, THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE) OR OTHERWISE, SHALL APPLY. IN NO EVENT SHALL CANBERRA HAVE ANY LIABILITY FOR ANY SPECIAL, EXEMPLARY, PUNITIVE, INDIRECT OR CONSEQUENTIAL LOSSES OR DAMAGES OF ANY NATURE WHATSOEVER, WHETHER AS A RESULT OF BREACH OF CONTRACT, TORT LIABILITY (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE. REPAIR OR REPLACEMENT OF THE SOFTWARE OR EQUIPMENT DURING THE APPLICABLE WARRANTY PERIOD AT CANBERRA'S COST, OR, IN THE CASE OF DEFECTIVE SERVICES, REPERFORMANCE AT CANBERRA'S COST, IS YOUR SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY.

EXCLUSIONS Our warranty does not cover damage to equipment which has been altered or modified without our written permission or damage which has been caused by abuse, misuse, accident, neglect or unusual physical or electrical stress, as determined by our Service Personnel.

We are under no obligation to provide warranty service if adjustment or repair is required because of damage caused by other than ordinary use or if the equipment is serviced or repaired, or if an attempt is made to service or repair the equipment, by other than our Service Personnel without our prior approval.

Our warranty does not cover detector damage due to neutrons or heavy charged particles. Failure of beryllium, carbon composite, or polymer windows, or of windowless detectors caused by physical or chemical damage from the environment is not covered by warranty.

We are not responsible for damage sustained in transit. You should examine shipments upon receipt for evidence of damage caused in transit. If damage is found, notify us and the carrier immediately. Keep all packages, materials and documents, including the freight bill, invoice and packing list.

Software License When purchasing our software, you have purchased a license to use the software, not the software itself. Because title to the software remains with us, you may not sell, distribute or otherwise transfer the software. This license allows you to use the software on only one computer at a time. You must get our written permission for any exception to this limited license.

BACKUP COPIES Our software is protected by United States Copyright Law and by International Copyright Treaties. You have our express permission to make one archival copy of the software for backup protection. You may not copy our software or any part of it for any other purpose.

Revised 1 Apr 2003

Dosicard-R User's Manual[1]_fixed

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Transcript of Dosicard-R User's Manual[1]_fixed