Characterizing Detectors for JWST's NIRCam

Details Characterizing Detectors for JWST's NIRCam Characterizing Detectors for JWST's NIRCam

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342609k&link_type=abstract

American Astronomical Society, AAS Meeting #213, #426.09; Bulletin of the American Astronomical Society, Vol. 41, p.255

Astronomy and Astrophysics

Astronomy

Scientific paper

NIRCam uses Teledyne H2RG 2048x2048 HgCdTe detector arrays. Eight arrays have a cut-off wavelength of 2.5 microns and two have a
cut-off of 5 microns. We describe characterization testing of these arrays, including linearity, latent image, dark current, and read noise measurements at temperatures from 32-42K. We also present metrology measurements showing the surface flatness, coplanarity, and pixel locations in the 2x2 short wavelength mosaic arrays. These data sets will be used to calibrate early on-orbit images.

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