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CAMERA MATERIALS TEST CHAMBER

Jack Singal 9/17/08. LSST Camera Workshop. CAMERA MATERIALS TEST CHAMBER. Optics table. Turbo pump. scroll pump and LN trap (for roughing A1, A3, and LL). CMTC on Stanford main campus. KIPAC/HEPL room B02. Andy’s metrology setup. Unrelated lab thru here. Refrigerator.

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CAMERA MATERIALS TEST CHAMBER

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  1. Jack Singal 9/17/08 LSST Camera Workshop CAMERA MATERIALS TEST CHAMBER Optics table Turbo pump scroll pump and LN trap (for roughing A1, A3, and LL)

  2. CMTC on Stanford main campus KIPAC/HEPL room B02 Andy’s metrology setup Unrelated lab thru here Refrigerator More lab this way

  3. zoomed view C1 C3 C2 A3 A1 A2

  4. schematic

  5. ~ 1Wk Procedure for Each Sample

  6. Work to complete CMTC • Connect fluid lines from refrigerator • Build sound dampening housing around refrigerator • Commissioning…..microbalance, optical system • Demonstrate with “dirty” sample ? FR4 ?

  7. Materials to be tested(should discuss priority) • Feed-thru epoxy (done with ROR) • Airborn connector • Misc Boards (with and without coating) • Misc Cables • Exposed Solder joints • Other epoxies • Misc Wire (thermocouples, etc…) • ??

  8. ROR results on feed-thru epoxy • Just the standard products • No ROR above background level at 20º C, only at 50º and 90º C

  9. ROR results on feed-thru epoxy Volume of C2: 39.2 liters Surface area of epoxy puck: 2.1 cm2 (2x)

  10. ROR: compare feed-thru epoxy to coated circuit board

  11. ROR: compare feed-thru epoxy to coated circuit board Volume of C2: 39.2 liters Surface area of epoxy puck: 2.1 cm2 (2x) Surface area of board: 2.6 cm2 (3x)

  12. C1 inside view Samples come in from A1 on mag. transport arm Heaters (2) Samples proceed to C2 Thermocouples (2)

  13. C2 inside view Quartz balance (crystal is under stage) RGA Samples enter from C1 Cold strap Heaters (2) Glass disk stage Sample boxes enter and exit thru A2 refrigerant loop “Wobble stick” Glass disks come in from C3 clean and go back dirty Sample box platform Thermocouples (3)

  14. C3 inside view Actuator piston moves basket back and forth Cold strap bent down in “U” to allow motion Cold strap Thermocouple (1) Refrigerant loop Glass disks come in and go out thru A3 To C2 Light beam comes up thru bottom, passes thru disks and is detected above Light beam double glass disk stage “wobble stick”

  15. Glass Disk Holder and Sample Box Glass Disk Holder (clamps glass and sits snuggly in baskets) Sample box (sliding lid and 2 holes for outgassing)

  16. Optical setup overview detector diode mounted here Beam goes through glass disks in C3 • Repeated with • each of 6 • band passes: • 400 nm • 500 nm • 600 nm • 750 nm • 850 nm • 1000 nm Light source

  17. Optical setup box Filter wheel TO C3 aperture Beam splitter Reference diode

  18. Final picture: some peripherals Vacuum oven 50% RH environment microbalance

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