NIRCam: development and testing of the JWST near-infrared camera

Thomas Greene; Charles Beichman; Michael Gully-Santiago; Daniel Jaffe; Douglas Kelly; John Krist; Marcia Rieke; Eric H. Smith

doi:10.1117/12.856615

4 August 2010 NIRCam: development and testing of the JWST near-infrared camera

Thomas Greene, Charles Beichman, Michael Gully-Santiago, Daniel Jaffe, Douglas Kelly, John Krist, Marcia Rieke, Eric H. Smith

Author Affiliations +

Proceedings Volume 7731, Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave; 77310C (2010) https://doi.org/10.1117/12.856615
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

The Near Infrared Camera (NIRCam) is one of the four science instruments of the James Webb Space Telescope (JWST). Its high sensitivity, high spatial resolution images over the 0.6 - 5 μm wavelength region will be essential for making significant findings in many science areas as well as for aligning the JWST primary mirror segments and telescope. The NIRCam engineering test unit was recently assembled and has undergone successful cryogenic testing. The NIRCam collimator and camera optics and their mountings are also progressing, with a brass-board system demonstrating relatively low wavefront error across a wide field of view. The flight model's long-wavelength Si grisms have been fabricated, and its coronagraph masks are now being made. Both the short (0.6 - 2.3 μm) and long (2.4 - 5.0 μm) wavelength flight detectors show good performance and are undergoing final assembly and testing. The flight model subsystems should all be completed later this year through early 2011, and NIRCam will be cryogenically tested in the first half of 2011 before delivery to the JWST integrated science instrument module (ISIM).

Citation Download Citation

Thomas Greene, Charles Beichman, Michael Gully-Santiago, Daniel Jaffe, Douglas Kelly, John Krist, Marcia Rieke, and Eric H. Smith "NIRCam: development and testing of the JWST near-infrared camera", Proc. SPIE 7731, Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave, 77310C (4 August 2010); https://doi.org/10.1117/12.856615

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