Transcript ppt

Cryostat Assembly
17 September 2008
Martin Nordby, Rafe Schindler, Gary Guiffre, Rick Van Berg
Contents
•
General Cryostat section views
•
Raft Tower load transfer process
•
Integration fixturing
•
Back end cable routing
•
Front end vacuum barrier
LSST Camera Systems Integration
2
Cryostat Section Views
Cryostat 2/3 Section Isometric View
LSST Camera Systems Integration
4
Cryostat ¾ Section Isometric View
LSST Camera Systems Integration
5
Cryostat XZ-Plane Section
LSST Camera Systems Integration
6
Cryostat YZ-Plane Section
LSST Camera Systems Integration
7
Cryostat and Valve Box YZ-Plane Section
LSST Camera Systems Integration
8
Raft Tower Load Transfer
Raft Tower on Cryo Plate
LSST Camera Systems Integration
10
Raft Tower Side Views
LSST Camera Systems Integration
11
Raft Hold-Down Device Details: -X Side
LSST Camera Systems Integration
12
Raft Hold-Down Device Details: +X Side
LSST Camera Systems Integration
13
Raft Tower Hold-Down in a Grid Bay
LSST Camera Systems Integration
14
Cryostat Integration and Fixturing
Cryostat Assembly and Integration Flow
Legend
Guide sensors,
electronics
FEE Cage
Wavefront
sensors,
electronics
Front End
Electronics
cards
Sensor
package
Sensor-FEE
flex cables
Raft Plate
FEE-RCC flex
cables
Raft Control
Crates
Thermal straps
Assemble, test
Raft
assemblies
Assemble Raft
Towers
Raft Tower
Acceptance Test
Integrate Raft
Towers into
Cryostat
Science Bay Int.
Front End Install.
Back End Install.
Install Grid,
Cryo Plate,
into Cryostat
Install Cold
Plate, back
end in Cryostat
Assemble
Corner Raft
Towers
SLAC
Harvard
LLNL
TBD
BNL
Acceptance test
(color denotes
responsibility)
L3 Lens
Assembly
Corner Raft
Acceptance Test
Integrate
Corner Rafts
into Cryostat
Close Cryostat
front end
Corner Bay Int.
Close Cryostat
back end and
Utility Trunk
Cryostat Assy
cold acceptance
tests
to Page 2
Cryostat Close-out and Utilities Integration
Cryostat Close-out
Close out
Cryostat
Assembly
Cryostat
pressure and
leak tests
Assemble, test
Instrument.
Ring
Cryostat cold
functional tests
Utility Trunk
structure and
panels
Power and
conditioning
module
Cryostat
Housing
Cold Plate
Support Ring
Valve Box
Ethernet
switch
Cryo Shroud
Pumping
chimneys,
plenum
X-Ray
Calibration
wiper arms
Control/Valve
Panel
Timing and
Control module
Cryo Plate
Feedthrough
Flange
Pattern
generating
gratings
Flexures
Blank-Off
Flange
Grid Assembly
Vacuum
pumps
Cryostat Integration and Test Sequence
LSST Camera Systems Integration
From LSST-2119-D, “Camera Integration and Test Flow Chart”
16
Cryostat Integration Facility—Plan View
Assembly stand
4'-4"
Cart
19'-11"
4'-4"
3'-6" clr
12'-8" (12' travel)
19'-9"
Integration gantry
22'-6"
7'-0" clr
1'-0" clr
Metrology system
Class 10K Clean Room
Cryostat Integration
A
A
Emerg
3'-0" wide walkway
Raft Test
Station
Single-Bay
Cold Test
Station
Cryostat
Electronics
44'-0"
From LSST-6176-A, “SLAC Bldg 33 Camera I&T Facility Layout”
LSST Camera Systems Integration
17
Cryostat Integration Facility—Elevation View
Metrology system
Assembly stand
Integration gantry
Cart
2"
44'-0"
8'-6"
9'-11"
1-Ton Crane min hook height
3'-9"
1'-8 1/16"
4'-6"
7'-10 1/2" clr
Clean Room Elevation
9'-6" clr
11'-5 1/2"
Cryostat with valve box in cold-test configuration
4'-10 1/2" clr
Room 103 Elevation A-A: Integrate Raft Towers into Cryostat
From LSST-6176-A, “SLAC Bldg 33 Camera I&T Facility Layout”
LSST Camera Systems Integration
18
Cryostat Integration Fixture
LSST Camera Systems Integration
19
Cryostat Cart
3-point mount
LSST Camera Systems Integration
Cryostat pivots around
mounting points during rotation
20
Back End Cable Routing
Back End Cable Routing
LSST Camera Systems Integration
22
Feedthrough Flange and Cable Routing from RCC
LSST Camera Systems Integration
23
Back End Section Views
LSST Camera Systems Integration
24
Front End Vacuum Barrier
Cryostat Vacuum
LSST Camera Systems Integration
26