Cryostat Assembly. 17 September Martin Nordby, Rafe Schindler, Gary Guiffre, Rick Van Berg

Transcription

1 Cryostat Assembly 17 September 2008 Martin Nordby, Rafe Schindler, Gary Guiffre, Rick Van Berg

2 General Cryostat section views Contents Raft Tower load transfer process Integration fixturing Back end cable routing Front end vacuum barrier LSST Camera Systems Integration 2

3 Cryostat Section Views

4 Cryostat 2/3 Section Isometric View LSST Camera Systems Integration 4

5 Cryostat ¾ Section Isometric View LSST Camera Systems Integration 5

6 Cryostat XZ-Plane Section LSST Camera Systems Integration 6

7 Cryostat YZ-Plane Section LSST Camera Systems Integration 7

8 Cryostat and Valve Box YZ-Plane Section LSST Camera Systems Integration 8

9 Raft Tower Load Transfer

10 Raft Tower on Cryo Plate LSST Camera Systems Integration 10

11 Raft Tower Side Views LSST Camera Systems Integration 11

12 Raft Hold-Down Device Details: -X X Side LSST Camera Systems Integration 12

13 Raft Hold-Down Device Details: +X Side LSST Camera Systems Integration 13

14 Raft Tower Hold-Down in a Grid Bay LSST Camera Systems Integration 14

15 Cryostat Integration and Fixturing

16 Cryostat Assembly and Integration Flow Legend FEE Cage Guide sensors, electronics SLAC Harvard Sensor package Raft Plate Front End Electronics cards Sensor-FEE flex cables Thermal straps FEE-RCC flex cables Raft Control Crates Wavefront sensors, electronics Assemble Corner Raft Towers Corner Raft Acceptance Test L3 Lens Assembly LLNL BNL TBD Acceptance test (color denotes responsibility) Assemble, test Raft assemblies Assemble Raft Towers Raft Tower Acceptance Test Integrate Raft Towers into Cryostat Integrate Corner Rafts into Cryostat Close Cryostat front end Close Cryostat back end and Utility Trunk Cryostat Assy cold acceptance tests to Page 2 Science Bay Int. Corner Bay Int. Cryostat Close-out and Utilities Integration Front End Install. Back End Install. Cryostat Close-out Install Grid, Cryo Plate, into Cryostat Install Cold Plate, back end in Cryostat Close out Cryostat Assembly Cryostat pressure and leak tests Cryostat cold functional tests Assemble, test Instrument. Ring 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 Grid Assembly Blank-Off Flange Vacuum pumps Cryostat Integration and Test Sequence From LSST-2119-D, Camera Integration and Test Flow Chart LSST Camera Systems Integration 16

17 Cryostat Integration Facility Plan View Metrology system Assembly stand Integration gantry Cart 19'-9" 4'-4" 19'-11" 4'-4" 7'-0" clr A Class 10K Clean Room Cryostat Integration 3'-0" wide walkway A 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

18 Cryostat Integration Facility Elevation View Metrology system Assembly stand Integration gantry Cart 44'-0" 1-Ton Crane min hook height 7'-10 1/2" clr Clean Room Elevation 4'-10 1/2" clr 9'-6" clr 11'-5 1/2" Room 103 Elevation A-A: Integrate Raft Towers into Cryostat Cryostat with valve box in cold-test configuration From LSST-6176-A, SLAC Bldg 33 Camera I&T Facility Layout LSST Camera Systems Integration 18

19 Cryostat Integration Fixture LSST Camera Systems Integration 19

20 Cryostat Cart 3-point mount Cryostat pivots around mounting points during rotation LSST Camera Systems Integration 20

21 Back End Cable Routing

22 Back End Cable Routing LSST Camera Systems Integration 22

23 Feedthrough Flange and Cable Routing from RCC LSST Camera Systems Integration 23

24 Back End Section Views LSST Camera Systems Integration 24

25 Front End Vacuum Barrier

26 Cryostat Vacuum LSST Camera Systems Integration 26