Microshutter Arrays for JWST NIRSpec.

Details Microshutter Arrays for JWST NIRSpec. Microshutter Arrays for JWST NIRSpec.

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.0507m&link_type=abstract

American Astronomical Society Meeting 205, #05.07; Bulletin of the American Astronomical Society, Vol. 36, p.1342

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Scientific paper

We have developed the microshutter array for use as a programmable field selector for Near Infrared Spectrometer (NIRSpec) being built by ESA for the James Webb Space Telescope (JWST). To observe a numerous objects simultaneously and eliminate the confusion caused by all other sources, specifically chosen shutters will be opened, selecting the chosen objects in the field of view. To cover the 3.6' x 3.6' NIRSpec field of view, individual microshutter arrays will be arranged in a 2 by 2 mosaic. Each qudrant is a close-packed array of 175x384 of individual independently addressable rectangular shutters. Smaller versions of these arrays in 128x64 format have been built and tested. These arrays have demonstrated full functionality at the cryogenic temperatures. Contrast measurement showed excellent light blocking capability. The next phase in the developement to produce flight design arrays. The first 175x384 shutters arrays for mechanical tests have been fabricated and have demonstrated good quality and uniformity of the array. This project is funded by NASA JWST.

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