Some performance results from NIRCam's coronagraphic prototype masks

Details Some performance results from NIRCam's coronagraphic prototype masks Some performance results from NIRCam's coronagraphic prototype masks

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5904...66v&link_type=abstract

Cryogenic Optical Systems and Instruments XI. Edited by Heaney, James B.; Burriesci, Lawrence G. Proceedings of the SPIE, Volume

Computer Science

Performance

Scientific paper

The Near Infrared Camera (NIRCam) instrument for NASA's James Webb Space Telescope (JWST) is one of the four science instruments installed into the Integrated Science Instrument Module (ISIM) on JWST intended to conduct scientific observations over a five year mission lifetime. NIRCam's requirements include operation at 37 kelvins (K) to produce high resolution images in two wave bands encompassing the range from 0.6 microns to 5 microns. In addition NIRCam is used as a metrology instrument during the JWST observatory commissioning on orbit, during the initial and subsequent precision alignments of the observatory's multiple-segment 6.3 meter primary mirror. This paper describes some preliminary performance results of prototype coronagraph masks.

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