Tokyo Electric Power Company,Inc. September ,2012
22
The situation of individual dose management of the workers who engaged in emergency wor k in Fukushima-daiichi nuclear power station ac cident Tokyo Electric Power Company,Inc. September ,2012
description
The situation of individual dose management of the workers who engaged in emergency work in Fukushima-daiichi nuclear power station accident. Tokyo Electric Power Company,Inc. September ,2012. Contents. １． Summary of emergency works ２． The dose of workers who engaged in emergency works - PowerPoint PPT Presentation
Transcript of Tokyo Electric Power Company,Inc. September ,2012
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The situation of individual dose management of the workers who engaged in emergency work in Fukushima-daiichi nuclear power station accidentTokyo Electric Power Company,Inc.September ,2012
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ContentsSummary of emergency worksThe dose of workers who engaged in emergency worksChange every monthAccumulated effective doseSpecific workers under high radiation dose interim measuresThe situation of workers of unknown contact informationExcess of dose limit of emergency works
Excess of dose limit of women workersThe situation of improvement of dose managementExternal exposure(The situation of APD deploymentInternal exposrure (The situation of WBC deployment (Reference) Dose exposure reduction measures for emergency works
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Summary of emergency worksBy the earthquake and Tsunami ,we had to restore with power supply tocool fuel in the reactor pressure vessel and the spent fuel pit. We got cooperation of the Self-Defense Forces and the fire department.The concrete pieces of the reactor building roof scattered under the influence of hydrogen explosion ,and fire engines were not able to approach the reactor building.The Self-Defense Forces removed them using the heavy industrial machine.To gain the phenomenon ,continuation of the plant operation and the restoration of the instrument.We had a lot of works ,fuel coolant ,water treatment ,radiological release reduction and improvement of the work environment.We got cooperation with experience rich cooperation company and each electric company.Now the stable situation continues.At first unable to use the radiation management system and dose management was carried out by a lot of workers.
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About 22,000 workers engaged in recovery work in Fukushima daiichi nuclear power station(1F) until the end of May ,2012.(External dose decreases.)By effects such as work environment improvement ,there were no external exposure workers more than 50mSv from June ,2011.About 66% workers are under 10mSv until May ,2012(external and internal explosure)Workers more than 100mSv are 167 people (TEPCO:146 workes Cooperation company:21 workes)The dose of workers who engaged in emergency worksChange every month
Graph3
224248766385682773046997686964516125610556135493560852515313
88365849033021014011510586697395405038
4201931117029101963400010
163251000000000000
2800000000000000
900000000000000
000000000000000
000000000000000
'11.Mar-engage
'11.Apr-engane
'11.Mayr-engage
'11.Jun-engane
'11.Jul-engage
'11.Aug-engane
'11.Sep-engage
'11.Oct-engane
'11.Nov-engage
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
'12.May-engage
Expose
persons
Dose Distribution (external expose)
8/2134
JAEA()JAEA
(3,4)59040,61448040,61459040,61473.7114.37678.0840,693568.0840,693678.0840,704
(3,4)54040,61454040,61454040,61491.1914.37645.5640,693645.5640,693645.5640,704
(3,4)40,68912140,62321040,616241.8140,61495.914.37231.2740,696320.2740,704352.0840,714
(1,2)1098.540,614300.540,615259.740,61434.8614.371147.7340,709349.7340,712308.9340,730
(1,2)40,689465.640,614368.140,614433.140,61428.0314.3750840,703410.540,717475.540,730
(1,2)40,687361.540,614358.540,614327.940,61417.0214.37392.8940,703389.8940,717359.2940,730
&R238 22
9
14
7
8
F or JV
150mSvX170mSv11
JAEA127.6mSv
(3,4)59088.08678.0873.7114.37
(3,4)540105.56645.5691.1914.37
(3,4)241.81110.27352.0895.914.37
(1,2)259.749.23308.9334.8614.37
(1,2)433.142.4475.528.0314.37
(1,2)327.931.39359.2917.0214.37
13.63.9517.552.061.89
6.710.787.4900.78
2.810.613.4200.61
2.50.783.2800.78
345678910111212
40,707613514514
40,71440,7146969
40,72440,724224224
40,73740,73714118132
40,75340,75310174184
40,76540,765115181143
40,786826371788
40,8014212317065
40,81638450020
40,847282400016
40,8772824000016
41,27422240000010
40,9392224000000
40,96822240000000
40,999222400000000
34567891011
10mSv2241328628782023205710961095865
10mSv20mSv883276131986921283
20mSv50mSv4215618186072
50mSv100mSv1632000000
100mSv150mSv280000000
150mSv200mSv90000000
200mSv250mSv00000000
250mSv00000000
374536203027213921321117113087014035
345678910
10mSv2727358830212126212911151119809
10mSv20mSv66519100000
20mSv50mSv2602000000
50mSv100mSv780000000
100mSv150mSv50000000
150mSv200mSv10000000
200mSv250mSv10000000
250mSv50000000
374236093022212621291115111980917671
345678910
10mSv1439321628592010205410941084804
10mSv20mSv1039308144986921283
20mSv50mSv8578219186072
50mSv100mSv3083000000
100mSv150mSv770000000
150mSv200mSv140000000
200mSv250mSv20000000
250mSv60000000
374236093022212621291115111980917671
3456789101112
106891,5532,2421,3973,4794,8761,3305,0556,3851,2875,5406,8271,3715,9337,3041,2695,7286,9971,2175,6526,8691,1625,2896,4519444,9875,9319384,9605,898
1020560323883173485658704204902930133017193210161241402113115159010577683135568
20502741464205813519315961110707032629191001919336033314
501001085516312425011000000000000000000000
10015020828000000000000000000000000000
150200639000000000000000000000000000
200250000000000000000000000000000000
250000000000000000000000000000000
'11.Mar-engage'11.Apr-engane'11.Mayr-engage'11.Jun-engane'11.Jul-engage'11.Aug-engane'11.Sep-engage'11.Oct-engane'11.Nov-engage'11.Dec-engane'12.Jan-engage'12.Feb-engane'12.Mar-engage'12.Apr-engane'12.May-engage11.Apr-engane
250mSv000000000000000
2332312233241
101,61311,330497412,9431,64511,66213,307
10204971,57815103,0754942,6673,161
20506461,95720132,6036462,0782,724
50100401339122740409347756
100150117174013411717134
150200222102422224
20025012003123
25060006606
3,30315,225
23323112332312233241233242233243233244233245
1012676129431329713502173712901
10 2029073075315832414902925
20 5024122603271928606132583
50 100671740762779460348
100 15013513413413411717
150 20023242424222
200 250333312
250666660
19528
233245
TEPCOWaker etc.
250mSv60
23224242243244245
105944149350351152664
81020611823143
72050200000174
650100000000246
51001500000000
41502000000000
32002500000000
22500000000
167452501
20.7892.3396.65
37.2941.1445.00
231224242243244
8104545424241
7102000000
6205000000
55010000000
41001500000033
3150200000008
220025000000
125000000
454542
1.431.73197.95
0.170.28129.35
514613613613613
69620620620620
630224630630630
14118713713713
10174729729729
115181810810
8263717831
42123170
38450
28240
28240
22240
3
4
5
6
7
English
1439321628592010205410941084804
1039308144986921283
8578219186072
3083000000
770000000
140000000
20000000
60000000
3
4
5
6
7
8
9
10
2727358830212126212911151119809
66519100000
2602000000
780000000
50000000
10000000
10000000
50000000
3
4
5
6
7
8
9
10
2241328628782023205710961095865
883276131986921283
4215618186072
1632000000
280000000
90000000
00000000
00000000
3
4
5
6
7
8
9
10
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
'11.Mar-engage
'11.Apr-engane
'11.Mayr-engage
'11.Jun-engane
'11.Jul-engage
'11.Aug-engane
'11.Sep-engage
'11.Oct-engane
'11.Nov-engage
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
'12.May-engage
Expose
persons
Dose Distribution (external expose)
0
0
0
0
0
0
0
0
233242
0000000
0000000
0000000
0000000
0000000
0000000
0000000
0000000
232
24
242
243
244
245
000000
000000
000000
000000
000000
000000
000000
000000
2312
24
242
243
244
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
TEPCO
Waker etc.
Expose
Persons
'11.Mar '12.May Integral Dose (external + internal)
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
40,707613514514
40,7146206969
40,724630224224
40,73771314118132
40,75372910174184
40,765810115181143
831826371788
9154212317065
93038450020
1031282400016
11302824000016
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv2241328628782023205710961095865
10mSv20mSv883276131986921283
20mSv50mSv4215618186072
50mSv100mSv1632000000
100mSv150mSv280000000
150mSv200mSv90000000
200mSv250mSv00000000
250mSv00000000
3745362030272139213211171130870
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv2727358830212126212911151119809
10mSv20mSv66519100000
20mSv50mSv2602000000
50mSv100mSv780000000
100mSv150mSv50000000
150mSv200mSv10000000
200mSv250mSv10000000
250mSv50000000
3742360930222126212911151119809
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv1439321628592010205410941084804
10mSv20mSv1039308144986921283
20mSv50mSv8578219186072
50mSv100mSv3083000000
100mSv150mSv770000000
150mSv200mSv140000000
200mSv250mSv20000000
250mSv60000000
3742360930222126212911151119809
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Data Check Date
Persons
Address Unknown
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Peraons
Dose Distributionexternal exposeinternal expose
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Peraons
Dose Distributioninternal expose
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Persons
Dose Distributionexternal expose
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The dose of workers who engaged in emergency works Accumulated effective dose
Graph2
173712901
4902925
6132583
460348
11717
222
12
60
TEPCO
Waker etc.
Expose
Persons
'11.Mar '12.May Integral Dose (external + internal)
8/2134
JAEA()JAEA
(3,4)59040,61448040,61459040,61473.7114.37678.0840,693568.0840,693678.0840,704
(3,4)54040,61454040,61454040,61491.1914.37645.5640,693645.5640,693645.5640,704
(3,4)40,68912140,62321040,616241.8140,61495.914.37231.2740,696320.2740,704352.0840,714
(1,2)1098.540,614300.540,615259.740,61434.8614.371147.7340,709349.7340,712308.9340,730
(1,2)40,689465.640,614368.140,614433.140,61428.0314.3750840,703410.540,717475.540,730
(1,2)40,687361.540,614358.540,614327.940,61417.0214.37392.8940,703389.8940,717359.2940,730
&R238 22
9
14
7
8
F or JV
150mSvX170mSv11
JAEA127.6mSv
(3,4)59088.08678.0873.7114.37
(3,4)540105.56645.5691.1914.37
(3,4)241.81110.27352.0895.914.37
(1,2)259.749.23308.9334.8614.37
(1,2)433.142.4475.528.0314.37
(1,2)327.931.39359.2917.0214.37
13.63.9517.552.061.89
6.710.787.4900.78
2.810.613.4200.61
2.50.783.2800.78
Graph1
173712901
4902925
6132583
460348
11717
222
12
60
TEPCO
Worker etc.
Expose
Persons
'11.Mar '12.May Integral Dose (external + internal)
345678910111212
40,707613514514
40,71440,7146969
40,72440,724224224
40,73740,73714118132
40,75340,75310174184
40,76540,765115181143
40,786826371788
40,8014212317065
40,81638450020
40,847282400016
40,8772824000016
41,27422240000010
40,9392224000000
40,96822240000000
40,999222400000000
34567891011
10mSv2241328628782023205710961095865
10mSv20mSv883276131986921283
20mSv50mSv4215618186072
50mSv100mSv1632000000
100mSv150mSv280000000
150mSv200mSv90000000
200mSv250mSv00000000
250mSv00000000
374536203027213921321117113087014035
345678910
10mSv2727358830212126212911151119809
10mSv20mSv66519100000
20mSv50mSv2602000000
50mSv100mSv780000000
100mSv150mSv50000000
150mSv200mSv10000000
200mSv250mSv10000000
250mSv50000000
374236093022212621291115111980917671
345678910
10mSv1439321628592010205410941084804
10mSv20mSv1039308144986921283
20mSv50mSv8578219186072
50mSv100mSv3083000000
100mSv150mSv770000000
150mSv200mSv140000000
200mSv250mSv20000000
250mSv60000000
374236093022212621291115111980917671
3456789101112
106891,5532,2421,3973,4794,8761,3305,0556,3851,2875,5406,8271,3715,9337,3041,2695,7286,9971,2175,6526,8691,1625,2896,4519444,9875,9319384,9605,898
1020560323883173485658704204902930133017193210161241402113115159010577683135568
20502741464205813519315961110707032629191001919336033314
501001085516312425011000000000000000000000
10015020828000000000000000000000000000
150200639000000000000000000000000000
200250000000000000000000000000000000
250000000000000000000000000000000
11.Mar-engage11.Apr-engane11.Mayr-engage11.Jun-engane11.Jul-engage11.Aug-engane11.Sep-engage11.Oct-engane11.Nov-engage11.Dec-engane12.Jan-engage12.Feb-engane12.Mar-engage12.Apr-engane12.May-engage11.Apr-engane
250mSv000000000000000
2332312233241
101,61311,330497412,9431,64511,66213,307
10204971,57815103,0754942,6673,161
20506461,95720132,6036462,0782,724
50100401339122740409347756
100150117174013411717134
150200222102422224
20025012003123
25060006606
3,30315,225
23323112332312233241233242233243233244233245
1012676129431329713502173712901
10 2029073075315832414902925
20 5024122603271928606132583
50 100671740762779460348
100 15013513413413411717
150 20023242424222
200 250333312
250666660
19528
233245
TEPCOWorker etc.
250mSv60
23224242243244245
105944149350351152664
81020611823143
72050200000174
650100000000246
51001500000000
41502000000000
32002500000000
22500000000
167452501
20.7892.3396.65
37.2941.1445.00
231224242243244
8104545424241
7102000000
6205000000
55010000000
41001500000033
3150200000008
220025000000
125000000
454542
1.431.73197.95
0.170.28129.35
514613613613613
69620620620620
630224630630630
14118713713713
10174729729729
115181810810
8263717831
42123170
38450
28240
28240
22240
3
4
5
6
7
English
1439321628592010205410941084804
1039308144986921283
8578219186072
3083000000
770000000
140000000
20000000
60000000
3
4
5
6
7
8
9
10
2727358830212126212911151119809
66519100000
2602000000
780000000
50000000
10000000
10000000
50000000
3
4
5
6
7
8
9
10
2241328628782023205710961095865
883276131986921283
4215618186072
1632000000
280000000
90000000
00000000
00000000
3
4
5
6
7
8
9
10
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
11.Mar-engage
11.Apr-engane
11.Mayr-engage
11.Jun-engane
11.Jul-engage
11.Aug-engane
11.Sep-engage
11.Oct-engane
11.Nov-engage
11.Dec-engane
12.Jan-engage
12.Feb-engane
12.Mar-engage
12.Apr-engane
12.May-engage
Expose
persons
Dose Distribution (external expose)
0
0
0
0
0
0
0
0
233242
0000000
0000000
0000000
0000000
0000000
0000000
0000000
0000000
232
24
242
243
244
245
000000
000000
000000
000000
000000
000000
000000
000000
2312
24
242
243
244
48.874.4
1510.3
19.512.8
12.12.2
3.50.1
0.60
00
0.10
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
40,707613514514
40,7146206969
40,724630224224
40,73771314118132
40,75372910174184
40,765810115181143
831826371788
9154212317065
93038450020
1031282400016
11302824000016
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv2241328628782023205710961095865
10mSv20mSv883276131986921283
20mSv50mSv4215618186072
50mSv100mSv1632000000
100mSv150mSv280000000
150mSv200mSv90000000
200mSv250mSv00000000
250mSv00000000
3745362030272139213211171130870
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv2727358830212126212911151119809
10mSv20mSv66519100000
20mSv50mSv2602000000
50mSv100mSv780000000
100mSv150mSv50000000
150mSv200mSv10000000
200mSv250mSv10000000
250mSv50000000
3742360930222126212911151119809
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv1439321628592010205410941084804
10mSv20mSv1039308144986921283
20mSv50mSv8578219186072
50mSv100mSv3083000000
100mSv150mSv770000000
150mSv200mSv140000000
200mSv250mSv20000000
250mSv60000000
3742360930222126212911151119809
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Data Check Date
Persons
Address Unknown
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Peraons
Dose Distributionexternal exposeinternal expose
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Peraons
Dose Distributioninternal expose
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Persons
Dose Distributionexternal expose
-
The dose of workers who engaged in emergency worksSpecific workers under high radiation dose interim measures Step 2 was finished on December 16 ,2011. The dose limit of emergency work reduced to 100mSv.(The workers who engaged in the work to maintain the function that cooling reactor facility or spent fuel tank at the area where the radiation dose exceed 0.1 mSv /h and prevent release of huge amount radioactive material due to trouble or break of reactor facility.)It is necessary for the target workers to enroll in the labor standards supervision station beforehand.The workers with a specialized skill among workers exceeding 100mSv had to get the permission of the Minister of Health, Labour and Welfare beforehand.Dse limit 250mSv was applied as interim measures workers for technical traditionuntil 30 April ,2012. (All interim measures workers are TEPCO. The number of workers is 45 workers. Finally 41 workers)
Graph5
5944149350351152664
611823143
200000174
000000246
0000000
0000000
0000000
0000000
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
'12.May-engage
Integral Dose
Expose
Persons
Specific workers under high radiation dose
8/2134
JAEA()JAEA
(3,4)59040,61448040,61459040,61473.7114.37678.0840,693568.0840,693678.0840,704
(3,4)54040,61454040,61454040,61491.1914.37645.5640,693645.5640,693645.5640,704
(3,4)40,68912140,62321040,616241.8140,61495.914.37231.2740,696320.2740,704352.0840,714
(1,2)1098.540,614300.540,615259.740,61434.8614.371147.7340,709349.7340,712308.9340,730
(1,2)40,689465.640,614368.140,614433.140,61428.0314.3750840,703410.540,717475.540,730
(1,2)40,687361.540,614358.540,614327.940,61417.0214.37392.8940,703389.8940,717359.2940,730
&R238 22
9
14
7
8
F or JV
150mSvX170mSv11
JAEA127.6mSv
(3,4)59088.08678.0873.7114.37
(3,4)540105.56645.5691.1914.37
(3,4)241.81110.27352.0895.914.37
(1,2)259.749.23308.9334.8614.37
(1,2)433.142.4475.528.0314.37
(1,2)327.931.39359.2917.0214.37
13.63.9517.552.061.89
6.710.787.4900.78
2.810.613.4200.61
2.50.783.2800.78
'11.Mar-engage'11.Apr-engane'11.Mayr-engage'11.Jun-engane'11.Jul-engage8910111212
40,707'11.Jun.13514514
40,714'11.Jun.206969
40,724'11.Jun.30224224
40,737'11.Jul.1314118132
40,753'11.Jul.2910174184
40,765'11.Aug.10115181143
'11.Aug.31826371788
'11.Sep.154212317065
'11.Sep.3038450020
'11.Oct.31282400016
'11.Nov.302824000016
'11.Dec.3122240000010
40,9392224000000
40,96822240000000
40,999222400000000
34567891011
10mSv2241328628782023205710961095865
10mSv20mSv883276131986921283
20mSv50mSv4215618186072
50mSv100mSv1632000000
100mSv150mSv280000000
150mSv200mSv90000000
200mSv250mSv00000000
250mSv00000000
374536203027213921321117113087014035
345678910
10mSv2727358830212126212911151119809
10mSv20mSv66519100000
20mSv50mSv2602000000
50mSv100mSv780000000
100mSv150mSv50000000
150mSv200mSv10000000
200mSv250mSv10000000
250mSv50000000
374236093022212621291115111980917671
345678910
10mSv1439321628592010205410941084804
10mSv20mSv1039308144986921283
20mSv50mSv8578219186072
50mSv100mSv3083000000
100mSv150mSv770000000
150mSv200mSv140000000
200mSv250mSv20000000
250mSv60000000
374236093022212621291115111980917671
3456789101112
106891,5532,2421,3973,4794,8761,3305,0556,3851,2875,5406,8271,3715,9337,3041,2695,7286,9971,2175,6526,8691,1625,2896,4519444,9875,9319384,9605,898
1020560323883173485658704204902930133017193210161241402113115159010577683135568
20502741464205813519315961110707032629191001919336033314
501001085516312425011000000000000000000000
10015020828000000000000000000000000000
150200639000000000000000000000000000
200250000000000000000000000000000000
250000000000000000000000000000000
'11.Mar-engage'11.Apr-engane'11.Mayr-engage'11.Jun-engane'11.Jul-engage'11.Aug-engane'11.Sep-engage'11.Oct-engane'11.Nov-engage'11.Dec-engane'12.Jan-engage'12.Feb-engane'12.Mar-engage'12.Apr-engane'12.May-engage11.Apr-engane
250mSv000000000000000
2332312233241
101,61311,330497412,9431,64511,66213,307
10204971,57815103,0754942,6673,161
20506461,95720132,6036462,0782,724
50100401339122740409347756
100150117174013411717134
150200222102422224
20025012003123
25060006606
3,30315,225
23323112332312233241233242233243233244233245
1012676129431329713502173712901
10 2029073075315832414902925
20 5024122603271928606132583
50 100671740762779460348
100 15013513413413411717
150 20023242424222
200 250333312
250666660
19528
233245
TEPCOWaker etc.
250mSv60
'11.Dec-engane'12.Jan-engage'12.Feb-engane'12.Mar-engage'12.Apr-engane'12.May-engageIntegral Dose
250mSv0000000
167452501
20.7892.3396.65
37.2941.1445.00
'11.Dec-engane'12.Jan-engage'12.Feb-engane'12.Mar-engage'12.Apr-enganeIntegral Dose
8250mSv00000
454542
1.431.73197.95
0.170.28129.35
00000
00000
00000
00000
00000
00000
00000
00000
00000
00000
00000
00000
'11.Mar-engage
'11.Apr-engane
'11.Mayr-engage
'11.Jun-engane
'11.Jul-engage
Data Check Date
Persons
Address Unknown
English
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
3
4
5
6
7
8
9
10
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
3
4
5
6
7
8
9
10
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
3
4
5
6
7
8
9
10
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
'11.Mar-engage
'11.Apr-engane
'11.Mayr-engage
'11.Jun-engane
'11.Jul-engage
'11.Aug-engane
'11.Sep-engage
'11.Oct-engane
'11.Nov-engage
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
'12.May-engage
Expose
persons
Dose Distribution (external expose)
0
0
0
0
0
0
0
0
233242
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
'12.May-engage
Integral Dose
Expose
Persons
Work of Specific High Dose effective dose
000000
000000
000000
000000
000000
000000
000000
000000
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
Integral Dose
Expose
Persons
Specialist Enginer apply 250mSv Dose limiteffective dose
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
TEPCO
Waker etc.
Expose
Persons
'11.Mar '12.May Integral Dose (external + internal)
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
40,707613514514
40,7146206969
40,724630224224
40,73771314118132
40,75372910174184
40,765810115181143
831826371788
9154212317065
93038450020
1031282400016
11302824000016
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv2241328628782023205710961095865
10mSv20mSv883276131986921283
20mSv50mSv4215618186072
50mSv100mSv1632000000
100mSv150mSv280000000
150mSv200mSv90000000
200mSv250mSv00000000
250mSv00000000
3745362030272139213211171130870
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv2727358830212126212911151119809
10mSv20mSv66519100000
20mSv50mSv2602000000
50mSv100mSv780000000
100mSv150mSv50000000
150mSv200mSv10000000
200mSv250mSv10000000
250mSv50000000
3742360930222126212911151119809
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv1439321628592010205410941084804
10mSv20mSv1039308144986921283
20mSv50mSv8578219186072
50mSv100mSv3083000000
100mSv150mSv770000000
150mSv200mSv140000000
200mSv250mSv20000000
250mSv60000000
3742360930222126212911151119809
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Data Check Date
Persons
Address Unknown
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Peraons
Dose Distributionexternal exposeinternal expose
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Peraons
Dose Distributioninternal expose
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Persons
Dose Distributionexternal expose
Graph6
4545424241250mSv
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
Integral Dose
Expose
Persons
Specialist Enginer apply 250mSv Dose limiteffective dose
8/2134
JAEA()JAEA
(3,4)59040,61448040,61459040,61473.7114.37678.0840,693568.0840,693678.0840,704
(3,4)54040,61454040,61454040,61491.1914.37645.5640,693645.5640,693645.5640,704
(3,4)40,68912140,62321040,616241.8140,61495.914.37231.2740,696320.2740,704352.0840,714
(1,2)1098.540,614300.540,615259.740,61434.8614.371147.7340,709349.7340,712308.9340,730
(1,2)40,689465.640,614368.140,614433.140,61428.0314.3750840,703410.540,717475.540,730
(1,2)40,687361.540,614358.540,614327.940,61417.0214.37392.8940,703389.8940,717359.2940,730
&R238 22
9
14
7
8
F or JV
150mSvX170mSv11
JAEA127.6mSv
(3,4)59088.08678.0873.7114.37
(3,4)540105.56645.5691.1914.37
(3,4)241.81110.27352.0895.914.37
(1,2)259.749.23308.9334.8614.37
(1,2)433.142.4475.528.0314.37
(1,2)327.931.39359.2917.0214.37
13.63.9517.552.061.89
6.710.787.4900.78
2.810.613.4200.61
2.50.783.2800.78
'11.Mar-engage'11.Apr-engane'11.Mayr-engage'11.Jun-engane'11.Jul-engage8910111212
40,707'11.Jun.13514514
40,714'11.Jun.206969
40,724'11.Jun.30224224
40,737'11.Jul.1314118132
40,753'11.Jul.2910174184
40,765'11.Aug.10115181143
'11.Aug.31826371788
'11.Sep.154212317065
'11.Sep.3038450020
'11.Oct.31282400016
'11.Nov.302824000016
'11.Dec.3122240000010
40,9392224000000
40,96822240000000
40,999222400000000
34567891011
10mSv2241328628782023205710961095865
10mSv20mSv883276131986921283
20mSv50mSv4215618186072
50mSv100mSv1632000000
100mSv150mSv280000000
150mSv200mSv90000000
200mSv250mSv00000000
250mSv00000000
374536203027213921321117113087014035
345678910
10mSv2727358830212126212911151119809
10mSv20mSv66519100000
20mSv50mSv2602000000
50mSv100mSv780000000
100mSv150mSv50000000
150mSv200mSv10000000
200mSv250mSv10000000
250mSv50000000
374236093022212621291115111980917671
345678910
10mSv1439321628592010205410941084804
10mSv20mSv1039308144986921283
20mSv50mSv8578219186072
50mSv100mSv3083000000
100mSv150mSv770000000
150mSv200mSv140000000
200mSv250mSv20000000
250mSv60000000
374236093022212621291115111980917671
3456789101112
106891,5532,2421,3973,4794,8761,3305,0556,3851,2875,5406,8271,3715,9337,3041,2695,7286,9971,2175,6526,8691,1625,2896,4519444,9875,9319384,9605,898
1020560323883173485658704204902930133017193210161241402113115159010577683135568
20502741464205813519315961110707032629191001919336033314
501001085516312425011000000000000000000000
10015020828000000000000000000000000000
150200639000000000000000000000000000
200250000000000000000000000000000000
250000000000000000000000000000000
'11.Mar-engage'11.Apr-engane'11.Mayr-engage'11.Jun-engane'11.Jul-engage'11.Aug-engane'11.Sep-engage'11.Oct-engane'11.Nov-engage'11.Dec-engane'12.Jan-engage'12.Feb-engane'12.Mar-engage'12.Apr-engane'12.May-engage11.Apr-engane
250mSv000000000000000
2332312233241
101,61311,330497412,9431,64511,66213,307
10204971,57815103,0754942,6673,161
20506461,95720132,6036462,0782,724
50100401339122740409347756
100150117174013411717134
150200222102422224
20025012003123
25060006606
3,30315,225
23323112332312233241233242233243233244233245
1012676129431329713502173712901
10 2029073075315832414902925
20 5024122603271928606132583
50 100671740762779460348
100 15013513413413411717
150 20023242424222
200 250333312
250666660
19528
233245
TEPCOWaker etc.
250mSv60
'11.Dec-engane'12.Jan-engage'12.Feb-engane'12.Mar-engage'12.Apr-engane'12.May-engageIntegral Dose
250mSv0000000
167452501
20.7892.3396.65
37.2941.1445.00
'11.Dec-engane'12.Jan-engage'12.Feb-engane'12.Mar-engage'12.Apr-enganeIntegral Dose
8250mSv00000
454542
1.431.73197.95
0.170.28129.35
00000
00000
00000
00000
00000
00000
00000
00000
00000
00000
00000
00000
'11.Mar-engage
'11.Apr-engane
'11.Mayr-engage
'11.Jun-engane
'11.Jul-engage
Data Check Date
Persons
Address Unknown
English
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
3
4
5
6
7
8
9
10
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
3
4
5
6
7
8
9
10
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
3
4
5
6
7
8
9
10
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
'11.Mar-engage
'11.Apr-engane
'11.Mayr-engage
'11.Jun-engane
'11.Jul-engage
'11.Aug-engane
'11.Sep-engage
'11.Oct-engane
'11.Nov-engage
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
'12.May-engage
Expose
persons
Dose Distribution (external expose)
0
0
0
0
0
0
0
0
233242
0000000
0000000
0000000
0000000
0000000
0000000
0000000
0000000
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
'12.May-engage
Integral Dose
Expose
Persons
Work of Specific High Dose effective dose
000000
000000
000000
000000
000000
000000
000000
000000
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
Integral Dose
Expose
Persons
Specialist Enginer apply 250mSv Dose limiteffective dose
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
TEPCO
Waker etc.
Expose
Persons
'11.Mar '12.May Integral Dose (external + internal)
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
40,707613514514
40,7146206969
40,724630224224
40,73771314118132
40,75372910174184
40,765810115181143
831826371788
9154212317065
93038450020
1031282400016
11302824000016
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv2241328628782023205710961095865
10mSv20mSv883276131986921283
20mSv50mSv4215618186072
50mSv100mSv1632000000
100mSv150mSv280000000
150mSv200mSv90000000
200mSv250mSv00000000
250mSv00000000
3745362030272139213211171130870
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv2727358830212126212911151119809
10mSv20mSv66519100000
20mSv50mSv2602000000
50mSv100mSv780000000
100mSv150mSv50000000
150mSv200mSv10000000
200mSv250mSv10000000
250mSv50000000
3742360930222126212911151119809
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv1439321628592010205410941084804
10mSv20mSv1039308144986921283
20mSv50mSv8578219186072
50mSv100mSv3083000000
100mSv150mSv770000000
150mSv200mSv140000000
200mSv250mSv20000000
250mSv60000000
3742360930222126212911151119809
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Data Check Date
Persons
Address Unknown
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Peraons
Dose Distributionexternal exposeinternal expose
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Peraons
Dose Distributioninternal expose
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Persons
Dose Distributionexternal expose
-
We checked 3,745 workers who engaged in emergency works since March,2011.There were 514 workers of unknown contact information among them.Most of them were the entry error to the list or false input.As a result of the data inspection , workers of unknown contact information reduced from 514 to 16 people 30 November ,2011.We couldnt confirm existence of 10 workers. And 6 workers retired and didnt communicate but after that we could contact 3 workers.We made public the name of 13 workers 16 December ,2011 and we could contact 3 workers.Now there are 10 workers of unknown contact information.Workers of unknown contact information dont occur since July ,2011. The situation of workers of unknown contact information
Graph4
514'11.Jun.13'11.Jun.13'11.Jun.13'11.Jun.13
69'11.Jun.20'11.Jun.20'11.Jun.20'11.Jun.20
'11.Jun.30224'11.Jun.30'11.Jun.30'11.Jun.30
14118'11.Jul.13'11.Jul.13'11.Jul.13
10174'11.Jul.29'11.Jul.29'11.Jul.29
115181'11.Aug.10'11.Aug.10
8263717'11.Aug.31
42123170
38450
28240
28240
22240
'11.Mar-engage
'11.Apr-engane
'11.Mayr-engage
'11.Jun-engane
'11.Jul-engage
Persons
The situation of person of unknown contact
8/2134
JAEA()JAEA
(3,4)59040,61448040,61459040,61473.7114.37678.0840,693568.0840,693678.0840,704
(3,4)54040,61454040,61454040,61491.1914.37645.5640,693645.5640,693645.5640,704
(3,4)40,68912140,62321040,616241.8140,61495.914.37231.2740,696320.2740,704352.0840,714
(1,2)1098.540,614300.540,615259.740,61434.8614.371147.7340,709349.7340,712308.9340,730
(1,2)40,689465.640,614368.140,614433.140,61428.0314.3750840,703410.540,717475.540,730
(1,2)40,687361.540,614358.540,614327.940,61417.0214.37392.8940,703389.8940,717359.2940,730
&R238 22
9
14
7
8
F or JV
150mSvX170mSv11
JAEA127.6mSv
(3,4)59088.08678.0873.7114.37
(3,4)540105.56645.5691.1914.37
(3,4)241.81110.27352.0895.914.37
(1,2)259.749.23308.9334.8614.37
(1,2)433.142.4475.528.0314.37
(1,2)327.931.39359.2917.0214.37
13.63.9517.552.061.89
6.710.787.4900.78
2.810.613.4200.61
2.50.783.2800.78
'11.Mar-engage'11.Apr-engane'11.Mayr-engage'11.Jun-engane'11.Jul-engage8910111212
40,707'11.Jun.13514514
40,714'11.Jun.206969
40,724'11.Jun.30224224
40,737'11.Jul.1314118132
40,753'11.Jul.2910174184
40,765'11.Aug.10115181143
'11.Aug.31826371788
'11.Sep.154212317065
'11.Sep.3038450020
'11.Oct.31282400016
'11.Nov.302824000016
'11.Dec.3122240000010
40,9392224000000
40,96822240000000
40,999222400000000
34567891011
10mSv2241328628782023205710961095865
10mSv20mSv883276131986921283
20mSv50mSv4215618186072
50mSv100mSv1632000000
100mSv150mSv280000000
150mSv200mSv90000000
200mSv250mSv00000000
250mSv00000000
374536203027213921321117113087014035
345678910
10mSv2727358830212126212911151119809
10mSv20mSv66519100000
20mSv50mSv2602000000
50mSv100mSv780000000
100mSv150mSv50000000
150mSv200mSv10000000
200mSv250mSv10000000
250mSv50000000
374236093022212621291115111980917671
345678910
10mSv1439321628592010205410941084804
10mSv20mSv1039308144986921283
20mSv50mSv8578219186072
50mSv100mSv3083000000
100mSv150mSv770000000
150mSv200mSv140000000
200mSv250mSv20000000
250mSv60000000
374236093022212621291115111980917671
3456789101112
106891,5532,2421,3973,4794,8761,3305,0556,3851,2875,5406,8271,3715,9337,3041,2695,7286,9971,2175,6526,8691,1625,2896,4519444,9875,9319384,9605,898
1020560323883173485658704204902930133017193210161241402113115159010577683135568
20502741464205813519315961110707032629191001919336033314
501001085516312425011000000000000000000000
10015020828000000000000000000000000000
150200639000000000000000000000000000
200250000000000000000000000000000000
250000000000000000000000000000000
'11.Mar-engage'11.Apr-engane'11.Mayr-engage'11.Jun-engane'11.Jul-engage'11.Aug-engane'11.Sep-engage'11.Oct-engane'11.Nov-engage'11.Dec-engane'12.Jan-engage'12.Feb-engane'12.Mar-engage'12.Apr-engane'12.May-engage11.Apr-engane
250mSv000000000000000
2332312233241
101,61311,330497412,9431,64511,66213,307
10204971,57815103,0754942,6673,161
20506461,95720132,6036462,0782,724
50100401339122740409347756
100150117174013411717134
150200222102422224
20025012003123
25060006606
3,30315,225
23323112332312233241233242233243233244233245
1012676129431329713502173712901
10 2029073075315832414902925
20 5024122603271928606132583
50 100671740762779460348
100 15013513413413411717
150 20023242424222
200 250333312
250666660
19528
233245
TEPCOWaker etc.
250mSv60
23224242243244245
105944149350351152664
81020611823143
72050200000174
650100000000246
51001500000000
41502000000000
32002500000000
22500000000
167452501
20.7892.3396.65
37.2941.1445.00
231224242243244
8104545424241
7102000000
6205000000
55010000000
41001500000033
3150200000008
220025000000
125000000
454542
1.431.73197.95
0.170.28129.35
00000
00000
00000
00000
00000
00000
00000
00000
00000
00000
00000
00000
'11.Mar-engage
'11.Apr-engane
'11.Mayr-engage
'11.Jun-engane
'11.Jul-engage
Data Check Date
Persons
Address Unknown
English
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
3
4
5
6
7
8
9
10
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
3
4
5
6
7
8
9
10
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
3
4
5
6
7
8
9
10
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
000000000000000
'11.Mar-engage
'11.Apr-engane
'11.Mayr-engage
'11.Jun-engane
'11.Jul-engage
'11.Aug-engane
'11.Sep-engage
'11.Oct-engane
'11.Nov-engage
'11.Dec-engane
'12.Jan-engage
'12.Feb-engane
'12.Mar-engage
'12.Apr-engane
'12.May-engage
Expose
persons
Dose Distribution (external expose)
0
0
0
0
0
0
0
0
233242
0000000
0000000
0000000
0000000
0000000
0000000
0000000
0000000
232
24
242
243
244
245
000000
000000
000000
000000
000000
000000
000000
000000
2312
24
242
243
244
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
TEPCO
Waker etc.
Expose
Persons
'11.Mar '12.May Integral Dose (external + internal)
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
40,707613514514
40,7146206969
40,724630224224
40,73771314118132
40,75372910174184
40,765810115181143
831826371788
9154212317065
93038450020
1031282400016
11302824000016
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv2241328628782023205710961095865
10mSv20mSv883276131986921283
20mSv50mSv4215618186072
50mSv100mSv1632000000
100mSv150mSv280000000
150mSv200mSv90000000
200mSv250mSv00000000
250mSv00000000
3745362030272139213211171130870
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv2727358830212126212911151119809
10mSv20mSv66519100000
20mSv50mSv2602000000
50mSv100mSv780000000
100mSv150mSv50000000
150mSv200mSv10000000
200mSv250mSv10000000
250mSv50000000
3742360930222126212911151119809
Mar.-engageApr.-engageMay.-engageJun.-engageJul.-engageAug.-engageSep.-engageOct.-engage
10mSv1439321628592010205410941084804
10mSv20mSv1039308144986921283
20mSv50mSv8578219186072
50mSv100mSv3083000000
100mSv150mSv770000000
150mSv200mSv140000000
200mSv250mSv20000000
250mSv60000000
3742360930222126212911151119809
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Data Check Date
Persons
Address Unknown
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Peraons
Dose Distributionexternal exposeinternal expose
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Peraons
Dose Distributioninternal expose
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
Mar.-engage
Apr.-engage
May.-engage
Jun.-engage
Jul.-engage
Aug.-engage
Sep.-engage
Oct.-engage
Expose
Persons
Dose Distributionexternal expose
-
The situation of workers of unknown contact information (A cause and measures )CauseWhen we lent worker APD ,we managed handwritten account book. Most of them were the entry error to the list or false input.ActionOffer cooporation company workers of unknown information contact list.Setting of the communication window.Hearing investigation to the worker who carried out same activity.The use of the homepage.MeasuresNow pubrication of a card by each worker and intoroduceindividual discrimination system(bar codes) . Workers of unknown contact information dont occur since July ,2011. (Changed a card with photgraph since 6 Feburary ,2012)
-
We comfirmed that 6 workers exceeded 250mSv of dose limit of emergency works.They had a physical checkup in National Institute of Radiological Sciences.We comfirmed that their health including acute obstacle didnthave influence.To check their health condition , they undergo a medical examination regularly Excess of dose limit of emergency works
-
Cause
They were more likely to take in radioactive material in the main control room.The heating ventilating system of main control room didnt function by power supply loss.Operator and the member of maintenance division were busy with restoration of facilities.They made as hard as possible efforts about the radiation protection. As a result ,we estimated that they took in radioactive material by following factors inside. It was great difficult that they put on radioprotection equipment precisely because of the situation progressed rapidly.By long time work ,they had to eat and drink in the main control room.There was a gap in the temple of glasses at the time of mask wearing.They worked near emergency door of main control room.It was the situation that they couldnt support immediately including the hydrogen hydrogen explosion of No.1 unit reactor building roof.Short time ,they made a gap into their mask and their face at the time of work.Excess of dose limit of emergency works
-
Measures Information communizationDeployment and use of radioprotection equipment
Measures Prohibition of eating and drinking at limit area of meal
Measures Education of radiation protection equipmentWearing of a steady maskAdoption of a new mask
Measures Survey before workWearing of a steady maskExcess of dose limit of emergency workMeasures
-
Excess of dose limit of female workers We comfirmed that 2 female workers(A/B) exceeded dose limit(5mSv/3 months).(Management dose limit of female worker at TEPCO:4mSv/3months)2 non-radiation females workers(C/D) who waited in anti-earthquake building exceeded dose limit 1mSv/year.We comfirmed that their health including acute obstacle didnt have influence.
-
CauseAs a result of investigation ,it was very probable that they took in radioactive material at anti-earthquake building.Setting of the buffering area which didnt bring in radioactive material was delay. The entrance door of anti-earthquake building was not airtight structure and doors were warped under the influence of a hydrogen explosion(Unit 1 and 3) It was difficult to completely prevent an Inflow radioactive material. Excess of dose limit of women workers (A cause and measures )MeasuresUse not to let female workers work at 1F since 23 March ,2011.Change to the tile which is hard to attach and deproyment of the local exhauster.Reduction of radioactive matter concentration in air in the anti-earthquake building.
-
The situation of improvement of dose managementExternal exposure(The situation of APD deploymentUnable to use about 5,000 APDs and their chargers for the tsunami.Gathered 320 available APDs. All workers couldnt have APD. A representative of the work carried a APD.necessary condition:same work ,same work place .etcNewly purchase of 100 APDs 1 April ,2011 and brought 640 APDs from Kashiwazaki Kariwa Nuclear Power Station(1,060 APDs in total)It went back up for the use that all workers could have APD(Now about 6,300APDs in total).Started operating the individual discrimination system(bar codes) at 1F 1 April ,2011 and J-Village 8 June ,2011. Sure of radiation managementStarted to notify individual dose by receipts 6 August ,2011.APD lending place at anti-earthquake buildingPrinted form of APDs measured value
-
4 Whole body counter(WBC) at 1F. All WBCs were unavailable because of loss of power ,radioactive contamination of WBCs and high back ground. Installation of movable WBC , borrowed from Japan Atomic Energy Agency(JAEA) ,at Onahama coal center since 22 March ,2011.4 WBCs at Fukushima daiini Nuclear Power Station(2F).All WBCs were unavailable because of radioactive contamination andhigh back ground.2 WBCs were able to use by extension of the measurement time since 11 April ,2011.4 WBCs at Kashiwazaki Kriwa Nuclear Power Station(KK) KK stay away from 1F ,so there was little use.The foundation of WBC center in Hirono football stadium 11 units are available now.The movement of 3 WBCs from 1F and 1 WBC from 2F.Newly purchase of 7unitsThe situation of improvement of dose management Internal exposrure (The situation of WBC deployment
-
sourceFuji Electric Co.,Ltd. HPWBC of installation typesourceJapan Atomic Emergency Agency HPMovable WBCsourceCanberra Japan KK HPWhole Body Counter(WBC) CenterThe exterior of WBC centerThe inside of WBC center
-
(Reference)Dose exposure reduction measures for emergency work (1)The dose exposure reduction measures of seismic isolated building(Setting of the lead boad to the window)Before constructionAfter construction
-
(Reference)Dose exposure reduction measures for emergency work (2)The dose exposure reduction measures of seismic isolated building(Setting P-tile on the floor)Under constructionAfter construction
-
(Reference)Dose exposure reduction measures for emergency work (3)Setting of the local exhauster
-
(Reference)Dose exposure reduction measures for emergency work (4)Robot for measurement of dose rate(Taron)Tarons measurementMake sure of picture and measurement result by parked operation vehicle in low dose area.
-
(Reference)Dose exposure reduction measures for emergency work (5)The tungsten best
-
(Reference)Dose exposure reduction measures for emergency work (6)
