Translator Disclaimer
Paper
12 October 2004 Detectors for the James Webb Space Telescope near-infrared spectrograph
Author Affiliations +
Abstract
The Near-Infrared Spectrograph (NIRSpec) is the James Webb Space Telescope’s primary near-infrared spectrograph. NASA is providing the NIRSpec detector subsystem, which consists of the focal plane array, focal plane electronics, cable harnesses, and software. The focal plane array comprises two closely-butted λco ~ 5 μm Rockwell HAWAII-2RG sensor chip assemblies. After briefly describing the NIRSpec instrument, we summarize some of the driving requirements for the detector subsystem, discuss the baseline architecture (and alternatives), and presents some recent detector test results including a description of a newly identified noise component that we have found in some archival JWST test data. We dub this new noise component, which appears to be similar to classical two-state popcorn noise in many aspects, “popcorn mesa noise.” We close with the current status of the detector subsystem development effort.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
PROCEEDINGS
17 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

NIRCA ASIC for the readout of focal plane arrays
Proceedings of SPIE (May 20 2016)
2K X 2K molecular beam epitaxy HgCdTe detectors for the...
Proceedings of SPIE (September 29 2004)
VIS SWIR focal plane and detector development at Raytheon ...
Proceedings of SPIE (September 26 2007)
State of the art MCT IR modules with enhanced long...
Proceedings of SPIE (May 31 2012)
High performance focal plane arrays based on the HAWAII 2RG...
Proceedings of SPIE (September 17 2007)

Back to Top