Download - Cryostat Assembly 17 September 2008 Martin Nordby, Rafe Schindler, Gary Guiffre, Rick Van Berg
Cryostat AssemblyCryostat Assembly
17 September 200817 September 2008
Martin Nordby, Rafe Schindler, Gary Guiffre, Rick Van Berg
LSST Camera Systems Integration
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ContentsContents
• General Cryostat section views
• Raft Tower load transfer process
• Integration fixturing
• Back end cable routing
• Front end vacuum barrier
LSST Camera Systems Integration
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Cryostat 2/3 Section Isometric ViewCryostat 2/3 Section Isometric View
LSST Camera Systems Integration
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Cryostat ¾ Section Isometric ViewCryostat ¾ Section Isometric View
LSST Camera Systems Integration
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Cryostat and Valve Box YZ-Plane SectionCryostat and Valve Box YZ-Plane Section
LSST Camera Systems Integration
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Raft Hold-Down Device Details: -X SideRaft Hold-Down Device Details: -X Side
LSST Camera Systems Integration
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Raft Hold-Down Device Details: +X SideRaft Hold-Down Device Details: +X Side
LSST Camera Systems Integration
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Raft Tower Hold-Down in a Grid BayRaft Tower Hold-Down in a Grid Bay
LSST Camera Systems Integration
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Cryostat Assembly and Integration FlowCryostat Assembly and Integration Flow
Legend
Sensor package
L3 Lens Assembly
Raft Tower Acceptance Test
Raft Plate
Assemble, test Raft
assemblies
Assemble Raft Towers
Front End Electronics
cards
FEE Cage
Sensor-FEE flex cables
Thermal straps
Cold Plate
Cryo Plate
Grid Assembly
Cryo Shroud
Cryostat Housing
Close out Cryostat
Assembly
Install Grid, Cryo Plate,
into Cryostat
Cryostat cold functional tests
Vacuum pumps
Blank-Off Flange
Feedthrough Flange
Cryostat pressure and
leak tests
Guide sensors, electronics
Wavefront sensors,
electronics
Assemble Corner Raft
Towers
Corner Raft Acceptance Test
Raft Control Crates
Flexures
Integrate Raft Towers into
Cryostat
Integrate Corner Rafts into Cryostat
Assemble, test Instrument.
Ring
Pattern generating
gratings
X-Ray Calibration wiper arms
Close Cryostat front end
Cryostat Assy cold acceptance
teststo Page 2
LLNL
BNL
HarvardSLAC
TBD
Acceptance test (color denotes responsibility)
FEE-RCC flex cables
Support Ring
Utility Trunk structure and
panels
Valve Box
Control/Valve Panel
Install Cold Plate, back
end in Cryostat
Timing and Control module
Power and conditioning
module
Ethernet switch
Cryostat Integration and Test Sequence
Pumping chimneys,
plenum
Close Cryostat back end and Utility Trunk
Cryostat Close-out and Utilities IntegrationCorner Bay Int.Science Bay Int.
Cryostat Close-outBack End Install.Front End Install.
From LSST-2119-D, “Camera Integration and Test Flow Chart”
LSST Camera Systems Integration
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Cryostat Integration Facility—Plan ViewCryostat Integration Facility—Plan View
3'-0" wide walkway
4'-4"19'-9"
Em
erg
4'-4"
22'
-6"
Single-Bay Cold Test
Station
Raft Test Station
Cryostat Electronics
1'-0
" cl
r
A A
19'-11"
Class 10K Clean RoomCryostat Integration
3'-6
" cl
r
12'
-8"
(12'
tra
vel)
7'-0" clr
44'-0"
From LSST-6176-A, “SLAC Bldg 33 Camera I&T Facility Layout”
Metrology system Assembly stand Integration gantry Cart
LSST Camera Systems Integration
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Cryostat Integration Facility—Elevation ViewCryostat Integration Facility—Elevation View
2"1-Ton Crane min hook height
8'-6
"
Clean Room Elevation
9'-1
1"
Room 103 Elevation A-A: Integrate Raft Towers into Cryostat
44'-0"
1'-8
1/1
6"
7'-10 1/2" clr
3'-9
"
9'-6" clr
4'-6
"
11'-5 1/2"
4'-10 1/2" clr
From LSST-6176-A, “SLAC Bldg 33 Camera I&T Facility Layout”
Metrology system Assembly stand Integration gantry Cart
Cryostat with valve box in cold-test configuration
LSST Camera Systems Integration
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Cryostat CartCryostat Cart
Cryostat pivots around mounting points during rotation
3-point mount
LSST Camera Systems Integration
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Feedthrough Flange and Cable Routing from RCCFeedthrough Flange and Cable Routing from RCC