Shutter for the Short Wavelength Spectrometer in ISO

Details Shutter for the Short Wavelength Spectrometer in ISO Shutter for the Short Wavelength Spectrometer in ISO

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989cryo...29..546w&link_type=abstract

(Space Cryogenics Workshop, Frascati, Italy, July 18, 19, 1988, Proceedings. A91-28526 11-31) Cryogenics (ISSN 0011-2275), vol.

Computer Science

Performance

1

Cryogenic Cooling, Infrared Space Observatory (Iso), Shutters, Spectrometers, Focal Plane Devices, Life (Durability), Spectral Resolution

Scientific paper

The Short Wavelength Spectrometer is one of the four astronomical instruments in the Infrared Space Observatory. At the input of this cryogenic spectrometer, two shutters select one of the three entrance slits. A fourth setting closes the entrance for dark-current measurements. The design of the shutters and results of performance tests on a prototype are the subject of this paper. The shutter vanes are mounted on cross-spring flexure pivots; results of cryogenic lifetime tests on these pivots are also discussed.

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