Microshutters arrays for the JWST near infrared spectrograph

被引:33
作者
Moseley, SH [1 ]
Arendt, R [1 ]
Boucarut, RA [1 ]
Jhabvala, M [1 ]
King, T [1 ]
Kletetschka, G [1 ]
Kutyrev, AS [1 ]
Li, M [1 ]
Meyer, S [1 ]
Rapchun, D [1 ]
Silverberg, RF [1 ]
机构
[1] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
来源
OPTICAL, INFRARED, AND MILLIMETER SPACE TELESCOPES, PTS 1-3 | 2004年 / 5487卷
关键词
microshutter array; MEMS; JWST; Infrared Spectroscopy; early universe; Galaxy formation;
D O I
10.1117/12.552431
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
The Near Infrared Spectrograph (NIRSpec) for the James Webb Space Telescope (JWST) is a multi-object spectrograph operating in the 0.6-5.0 mum spectral range. One of the primary scientific objectives of this instrument is to measure the number and density evolution of galaxies following the epoch of initial formation. NIRSpec is designed to allow simultaneous observation of a large number of sources, vastly increasing the capability of JWST to carry out its objectives. A critical element of the instrument is the programmable field selector, the Microshutter Array. The system consists of four 175 x 384 close packed arrays of individually operable shutters, each element subtending 0.2" x 0.4" on the sky. This device allows simultaneous selection of over 200 candidates for study over the 3.6' x 3.6' field of the NIRSpec, dramatically increasing its efficiency for a wide range of investigations. Here, we describe the development, production, and test of this critical element of the NIRSpec.
引用
收藏
页码:645 / 652
页数:8
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