SPICA Focal Plane Instrument FPI TOBTelescope Optical Bench
SPICA望遠鏡焦点面観測装置 Focal Plane Instrument (FPI) TOB:Telescope Optical Bench IOB: Instrument Optical Bench 4
STM : Structure Thermal Model l Description l l Required Function l l l Mechanical I/F specifications (including disturbance sources) is equivalent to that of FM Same mechanical I/F specifications to FM Nearly the same thermal I/F (TBD, for spacecraft(PM) thermal test) Equipped with thermometers, acceleration sensors for measurement of I/F environmental condition Simulate mechanical disturbance according to the system operation modes Proposed Delivery l Jan. 2013 : before starting of assembly of spacecraft (PM) for the system Mechanical Thermal Test
CQM : Cold Qualification Model l Description l l Required Function l l Nearly equivalent to FM incorporating with detectors operable at low-temperature expected in orbit Same thermal, mechanical, electrical I/F specifications to FM Equipped with detectors operable at lowtemperature, with the same noise performance as that of FM Simulate heat-dissipation (load to J-Ts), mechanical disturbance according to the system operation modes Proposed Delivery l Apr. 2015 : when the PLM(FM) is available for us to test the items (a), (b), & (c) in page 2.
SPICA望遠鏡 SPICA Telescope Assembly (STA) l 3. 5 m is technically a good choice l Monolithic Mirror l l No deployable mechanism l l Simple, Feasible, Reliable Smooth PSF l l Ceramic material (Si. C) Essential for Coronagraph Herschel & AKARI Heritage l l l SPICA: WFE 0. 35μm, 5 K (3. 5 m) AKARI: WFE 0. 35μm, 6 K (70 cm) Herschel: WFE 6μm, 80 K (3. 5 m)
Space Odyssey in 2018
- Slides: 20