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Proceedings Paper

Cryogenic spectral performance of bandpass filters for the NIRCam instrument
Author(s): Yalan Mao; David Harrison; Todd Richardson; Bailey Schulz; Dale Taylor; Lynn W. Huff; Scott Horner; Douglas Kelly; Marcia J. Rieke
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Paper Abstract

The Bandpass Filters in the NIRCam instrument are required to have high throughput in bandpass spectral region and excellent out-of-band blocking over the entire region of detector spectral response. The high throughput is needed for the instrument to have high sensitivity for detecting distant galaxies, and the out-of-band blocking is needed for accurate calibration on James Webb Space Telescope. The operating temperature of the instrument is at cryogenic temperature from 32 Kelvin to 39.5 Kelvin. We have performed spectral measurement of NIRCam bandpass filters at cryogenic temperature after three cryo-to-ambient cycles. We will report the experiment and results in this paper. This work was performed and funded by NASA Goddard Space Flight Center under Prime Contract NAS5-02105.

Paper Details

Date Published: 17 September 2009
PDF: 12 pages
Proc. SPIE 7439, Astronomical and Space Optical Systems, 74391D (17 September 2009);
Show Author Affiliations
Yalan Mao, Lockheed Martin Space Systems Co. (United States)
David Harrison, Barr Associates, Inc. (United States)
Todd Richardson, Barr Associates, Inc. (United States)
Bailey Schulz, Barr Associates, Inc. (United States)
Dale Taylor, Barr Associates, Inc. (United States)
Lynn W. Huff, Lockheed Martin Space Systems Co. (United States)
Scott Horner, Lockheed Martin Space Systems Co. (United States)
Douglas Kelly, Steward Observatory, The Univ. of Arizona (United States)
Marcia J. Rieke, Steward Observatory, The Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 7439:
Astronomical and Space Optical Systems
Penny G. Warren; James B. Heaney; Robert K. Tyson; Michael Hart; E. Todd Kvamme; Cheryl J. Marshall, Editor(s)

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