Intra-pixel response of the new JWST infrared detector arrays

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DOIResolve DOI: http://doi.org/10.1117/12.2057114
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TypeArticle
Proceedings titleSPIE - International Society for Optical Engineering. Proceedings
ConferenceHigh Energy, Optical, and Infrared Detectors for Astronomy VI, 22 June 2014 through 25 June 2014, Montreal, QC
ISSN0277-786X
ISBN9780819496225
Volume9154
Article number91542D
SubjectDiffusion; Infrared detectors; Space telescopes; 1550 nm; Detector materials; Fine guidance sensors; Intra-pixel response; James Webb space telescope; Response profile; Astronomy
AbstractWe have repeated some of our previous measurements of the intra-pixel response of the infrared detector arrays for the Fine Guidance Sensor (FGS) instrument on the James Webb Space Telescope (JWST). This set of tests was performed on a 5 micron cutoff substrate-removed HAWAII-1RG from the new batch of devices produced for JWST. The measurements were done at wavelengths from 650 nm to 1550 nm. The results from these tests indicate that there are no significant differences in the intra-pixel response between the older JWST devices and the new ones. Modeling suggests that the primary contributor to the response profile is diffusion in the bulk detector material.
Publication date
PublisherSPIE
LanguageEnglish
AffiliationNational Science Infrastructure; National Research Council Canada
Peer reviewedYes
NPARC number21272805
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Record identifier7ecdff4f-bdc5-417a-92b1-94028ae69a3b
Record created2014-12-03
Record modified2017-04-24
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