Cryostat

1
Cryostat OIWFS Duplication
2
Changes Since CoDR

• Integration frame and ISS interface duplication
  at RSAA
• Cryostat duplication at RSAA
• OIWFS mechanisms to be built at UH
• OIWFS detector system to be built and tested at UH

3
Integration Frame and Thermal Enclosures
4
ISS Interface Plate and Cryostat
5
Radiation Shields, CWS Plate, and OIWFS Optable
6
OIWFS Mechanisms, Optics, andDetector System
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Integration Frame, Thermal Enclosures, and
Cryostat
8
Integration Frame, Thermal Enclosures, and
Cryostat
9
ISS Interface Plate
10
Integration Frame
11
Various Parts
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Radiation Shield Frame
13
Cryocooler Parts
14
NIFS Changes

• Extra ballast to Carrier Frame.

• Move vacuum jacket O-rings to center section.

• Lifting fittings to vacuum jacket end plates.

• Science detector hermetic connector and
  controller.

• Cold Work Surface plate hole pattern.

• Pick-off mirror and OIWFS baffle mounts.

• New closed cycle coolers(?) to reduce vibration.

• Remove OIWFS focus mechanism.

• Remove NIRI Focal Plane Mask and Beamsplitter
  wheels.

15
Parts Manufactureas at 30 March 2001
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Parts Delivery
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Cryostat and OIWFS Duplication Issues

• How well is NIRI performing?
• OIWFS repeatability.
• OIWFS gimbal stability
• Cooldown/warmup time.