RICH Installation and integration in CLAS12€¦ · -Available since OCTOBER 2016 after the...
Transcript of RICH Installation and integration in CLAS12€¦ · -Available since OCTOBER 2016 after the...
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RICH Installation and
integration in CLAS12 April 25th 2016
D. Orecchini, S. Tomassini
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CLAS12 RICH – Detector Group meeting
Detector Group Meeting- S. Tomassini, D. Orecchini
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Outline
1. The RICH Gas System (RGS)
2. The setup for the mirror tests in the small clean
room in EEL-121
3. The work to be done for the detector assembly in the big clean room in EEL-124
2 Detector Group Meeting- S. Tomassini, D.
Orecchini
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1. The RICH Gas System (RGS)
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Gas System
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• Compressed air to cool down the electronic panel to keep safe the FTOF
Limit temperature is 100 °F on the FTOF panel
• Purging Nitrogen to reduce the relative humidity inside the RICH as required to maintain the aerogel performances
Total volume is 5 m^3 Flow Rate =?
Detector Group Meeting- S. Tomassini, D. Orecchini
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Electronic Box: Test Cooling Setup Prototype of half of the electronic panel made of
Aluminum and PVC and resistive wires to simulate the
heating.
The box is sealed and has an air inlet and outlet
50W on the ASIC plane
200W on the FPGA plane
Fresh air fluxed inside the box from a compressor
Temperatures measured in few points inside and
outside the box
Temperature limit for TOF operation
is 100 °F /38 °C
Cover
5 M. Mirazita, V. Lucherini
TOF
Elec. Panel
Detector Group Meeting- S. Tomassini, D. Orecchini
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Measured Temperatures Air flow is 100 l/min, inlet temperature
scaled to 20 °C
RICH cover
Temp vs Time
Inner
temperatures
FPGA
ASIC
FTOF Temp vs Time
FTOF
Surface map
Temp
Tmax~28C well below the requirements 6 M. Mirazita, V. Lucherini Detector Group Meeting- S. Tomassini, D.
Orecchini
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Gas System: Compressor Layout
To the Electronic Box
Single Unit Parameters
Flow rate 20,2 l/s
Elec. Power 10,4 kW
Dew Point T 3 °C
Dimensions 1,4x0,7x1,8m
Weight 515 kg
Noise Press 60 dB(A)
SF11-8 MC FF
- Installation area: 12 m^2
SF11-8 MC FF
M. Mirazita, V. Lucherini Detector Group Meeting- S. Tomassini, D. Orecchini
http://www.atlascopco.com/us/
http://www.atlascopco.us/Images/SF%20series%20brochure%20English_tcm795-1701214.pdf
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Detector Group Meeting- S. Tomassini, D. Orecchini
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Dimentions in Inch
Compressor 01 Compressor 02
Gas System: Compressor Layout
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Gas System: Purging Nitrogen
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p= 0.5 mbar Flow rate 5 m^3/day
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2. The setup for the mirror tests in the small clean room in EEL-121
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5550
2900
3175
3880
8725
6780
Clean Room EEL 121
The small clean room EEL-121
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PMTs E_Panel
Rack
Table
Spherical Mirrors Test Station
Sub Mirrors Box
PMTs Box
The small clean room EEL-121 • Test the CFRP Mirrors (D0
measurement) • E-Panel assembly and test
To do List: • Visit of the room • Real occupancy
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3. The work to be done for the detector assembly in the big clean room in EEL-124
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Clean Room EEL-124
4.85m
5.35m
18.30m
7.30m
13.30m Discussed and agreed with Walt Ackers
CLEAN ROOM - Available since OCTOBER 2016
after the installation of the Drift chambers
- Small areas inside the room will be available since first delivery of materials
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RICH ASSEMBLY AREA LAYOUT IN EEL-124
AREA FOR ASSEMBLY
AND SURVEY
DARK ROOM
ASSEMBLY AREA.
1. all the assembly operations will be performed in EEL-124
2. Dark Room is a removable enclosure
AREA FOR ASSEMBLY
AND SURVEY
15 Detector Group Meeting- S. Tomassini, D.
Orecchini
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16 Detector Group Meeting- S. Tomassini, D. Orecchini
RICH ASSEMBLY AREA LAYOUT IN EEL-124
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CLEAN ROOM EEL-124 Is equipped with a Gantry Crane Capacity 3 TON
A Gantry Crane will be used for mechanical assembly of the RICH case. The rotation of the RICH, once the assembly will be completed, will be performed by means of a winch.
17 Detector Group Meeting- S. Tomassini, D.
Orecchini
• Gantry Crane Operator? • Are non-Jlab operators
allowed?
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List of operations in the EEL124
The RICH case will arrive dismounted
• It is necessary to assemble the installation structure (aluminum extrusions), fix to the floor with mechanical anchors, level…
• Assemble the RICH case (gantry crane, forklift, winch, hand-tools…)
• Assemble the Front Panel (Aerogel, Flat Mirrors, alignment …)
Detector Group Meeting- S. Tomassini, D.
Orecchini 18
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Assembly Structure
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1. Drill the holes of the base plate in the floor
2. Level the base plate and anchor
3. Assemble all the components
Needs: 1. Gantry crane
operator 2. Two mechanical
operators 3. One survey
operator 4. Hand tools 5. Lifting tools
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RICH assembly sequence 01
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1
2
3
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Frontal Panel
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3.3 m
1.5 m
1.5 m 40 kg
20 kg
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RICH assembly sequence 02
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4
5
5
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1. Mechanical assembly of the RICH case after the delivery to Jlab
2. Installation of the glass lateral mirrors & Alignment 3. Installation of the electronic panel, cable trays 4. Cabling and Piping (cooling air and purging nitrogen) 5. Installation of the spherical mirror 6. Installation of the frontal panel 7. Installation of the exit panel
8. Light tightness test and sealing if necessary Rotation and transportation of the RICH module to the hall B
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2
3
4
5
6 7
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RICH assembly sequence 03
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ROTATION STEP_2
ROTATION STEP_3
1) THE RICH HAS BEEN ASSEMBLED 2) THE RICH IS ROTATED BY THE WINCH 3) THE RICH IS SECURED ON THE TROLLEY 4) THE TROLLEY IS ROLLED OUT THE CLEAN
ROOM
Rotation of the RICH module
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ROTATION STEP_1
TROLLEY
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TROLLEY FOR THE TRANSPORTATION
TROLLEY
RICH MODULE
AN EXPECIALLY DESIGNED TROLLEY WILL BE USED TO TRANSPORT THE RICH TO THE HALL B IN ORDER TO REDUCE AS MUCH AS POSSIBLE THE RISK OF BREAKING THE AEROGEL TILES AND TO NOT STRESS THE AEROGEL SUSPENTION SYSTEM
The volume will be closed and sealed in its final assembly and the inner volume
will be temporarily fluxed by dry nitrogen
Low pressure tires to damp vibrations
Jackable wheels for fine adjustment
The system can be safely pulled by a
Forklift or electric tractor …
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Hall B ENTRANCE
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To easily enter the hall B door, the trolley has an asymmetric shape There are 10 cm of clearance on each side of the door One stirrup must be dismounted and the two patch panels must be folded
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Back Rotation once in hall B
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The assembly structure will be dismounted and remounted in Hall B The RICH will be back rotated to the position ready to attach the lifting Tripod
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Spare Slides
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Firt test done and successful: the method works. Improvements under study.
- Use of inextensible nylon wire; - washers on the screws to fix the nylon “piece to
piece”; - optimal method of tiling and weaving to minimize Aerogel tile handling. 29
Mechanical frame with “dummy” Rohacell tiles built. Test of a Nylon wire net to sustain the Aerogel tiles
Detector Group Meeting- S. Tomassini, D. Orecchini
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Detector Group Meeting- S. Tomassini, D. Orecchini
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PMTs
Aerogel
Spherical Mirror
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LIFTING TRIPOD (THE ORANGE
ONE)
A LIFTING TRIPOD FOR RIGGING THE RICH MODULE ON THE FORWARD CARRIAGE HAS BEEN DESIGNED
Crane
Counter Weight
LIFTING TRIPOD
JLAB SECTOR (THE BLUE ONE)
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Slow control ELEMENTS TO BE CONTROLLED • Electronics and MAPMT
o High Voltage o Low Voltage
• Services o Nitrogen gas system - humidity, pressure, flow rate o Electronic cooling system - inner temperature - air temperature, humidity, flow rate o Air Compressors
- Functioning status Only instrumentation compatible with Jlab equipments will
be used (e.g. CAEN HV power supply)
In charge of Glasgow group
32 Detector Group Meeting- S. Tomassini, D.
Orecchini
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Geometry • Inner air volume only
• 3 holes for fresh air inlet
Physics • Power source on boundary 3: 200 W/m2
• Fresh air inlets on boundary 6: defined through inlet velocity and temperature
• All other boundaries are adiabatic
• ON/OFF Gravity volume force along coordinate of choice (e.g. X) Boundary 8: convective
outflow
Boundary 6: simulates fresh air inlets
Boundary 3: large flat heat source
gravity Z
X Y
(Code: Comsol Multiphysics 3.2)
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