Reciprocity failure in 1.7 μm cut-off HgCdTe detectors

Hill, Robert J.; Malumuth, E. M.; Foltz, Roger; Kimble, Randy A.; Waczynski, Augustyn; Boehm, Nicholas; Wen, Yang; Kan, Emily; Collins, Nicholas R.

doi:10.1117/12.857218

Cited by 10 publications

(13 citation statements)

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“…This is reflected in measurements on the final candidate detectors for WFC3 which show very similar results as H2-102 and H2-142. 18 The WFC3 team reports reciprocity failure ranging from 0.3 %/decade to in to 0.97 %/decade for three detectors. As they point out, this is significantly smaller than the effect in the 2.5 µm HgCdTe NICMOS detectors on HST (6 %/decade).…”

Section: Discussionmentioning

confidence: 99%

Investigating reciprocity failure in 1.7-micron cut-off HgCdTe detectors

et al. 2010

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Flux dependent non-linearity (reciprocity failure) in HgCdTe NIR detectors with 1.7 micron cut-off was investigated. A dedicated test station was designed and built to measure reciprocity failure over the full dynamic range of near infrared detectors. For flux levels between 1 and 100,000 photons/sec a limiting sensitivity to reciprocity failure of 0.3%/decade was achieved. First measurements on several engineering grade 1.7 micron cut-off HgCdTe detectors show a wide range of reciprocity failure, from less than 0.5%/decade to about 10%/decade. For at least two of the tested detectors, significant spatial variation in the effect was observed. No indication for wavelength dependency was found. The origin of reciprocity failure is currently not well understood. In this paper we present details of our experimental set-up and show the results of measurements for several detectors.Comment: 11 pages, 10 figures, to appear in " Astronomical Telescopes and Instrumentation: High Energy, Optical, and Infrared Detectors for Astronomy IV", Proceedings of SPIE Vol. 774

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Section: Discussionmentioning

confidence: 99%

Investigating reciprocity failure in 1.7-micron cut-off HgCdTe detectors

et al. 2010

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“…Measurements have been made to characterize the (<1%/dex) count rate dependent non-linearity for FPA166. 22 FPA 154 (flight) and FPA 166 (flight-spare) show no significant performance changes over a ∼5 year baseline (2007 to 2012) between measurements. Dark current, full-well linearity, and quantum efficiency measurements illustrating the stability the the flight detector (FPA 154) over the aforementioned baseline were presented in the 2012 SPIE proceedings.…”

Section: Detector Performancementioning

confidence: 88%

ACCESS: thermal mechanical design and performance

Kaiser

Morris

Hansen³

et al. 2013

SPIE Proceedings

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Establishing improved spectrophotometric standards is important for a broad range of missions and is relevant to many astrophysical problems. ACCESS, "Absolute Color Calibration Experiment for Standard Stars", is a series of rocket-borne sub-orbital missions and ground-based experiments designed to enable improvements in the precision of the astrophysical flux scale through the transfer of absolute laboratory detector standards from the National Institute of Standards and Technology (NIST) to a network of stellar standards with a calibration accuracy of 1% and a spectral resolving power of 500 across the 0.35 − 1.7µm bandpass. Achieving a calibration accuracy of 1% not only requires an accurate calibration transfer from the detector standards to the instrument, but it also requires characterization and stability of the detector as well as a thermal background that contributes less than 1% to the flux per resolution element in the near-infrared (1.7µm) spectral region of the ACCESS bandpass. This paper describes the thermal mechanical design for achieving a low thermal background across the ACCESS spectral bandpass.

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“…4,[21][22][23] Neutral-density (ND) filters are also used to vary the light flux of the system, [24][25][26] although other alternatives, such as diaphragms, apertures, or pinholes of different sizes, have also been adopted, 16,18 sometimes in combination with ND filters. 22,27 Operating CCD or CMOS detectors at near-infrared (NIR) and even visible wavelengths require their thermalization at cryogenic temperatures. Open-cycle cryostats are used in some characterization facilities 20,21,28 to reach these temperatures.…”

Section: Introductionmentioning

confidence: 99%

Facility for the radiometric characterization of space-based visible-near infrared detectors

Cisneros-González,

Bolsée,

Pereira

et al. 2023

J. Astron. Telesc. Instrum. Syst.

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When developing new astronomical instruments, there is a need to perform the characterization of their individual components, especially the detectors, to ensure that their performances comply with the scientific objectives of the instrument. A visiblenear infrared (VIS-NIR) facility was developed for the absolute and relative radiometric characterization of space-based detectors at the Royal Belgian Institute for Space Aeronomy (BIRA-IASB). The facility operates from 0.4 to 2.65 μm in an ISO-5 environment. It offers a tunable monochromatic flux with a high level of straylight rejection (10 −8 ) and 2% uniformity, over a four-decade range of intensity with adjustable bandwidth. Latency measurements are also possible. Thermalization is offered within a precision of 7 mK between 50 K and 382 K. The ultimate vacuum level of the detector chamber is below 10 −6 mbar. A robust security system avoids both reaching temperatures outside the operational range of the detector and its electronics, and contamination due to vacuum loss. The facility was already used to characterize the VIS-NIR detectors of the Moons And Jupiter Imaging Spectrometer (MAJIS), one of the instruments on board the Jupiter ICy Moons Explorer (JUICE). The versatility provided by the VIS-NIR facility allows its use for the characterization of other astronomical detectors.

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Reciprocity failure in 1.7 μm cut-off HgCdTe detectors

Cited by 10 publications

References 0 publications

Investigating reciprocity failure in 1.7-micron cut-off HgCdTe detectors

Investigating reciprocity failure in 1.7-micron cut-off HgCdTe detectors

ACCESS: thermal mechanical design and performance

Facility for the radiometric characterization of space-based visible-near infrared detectors

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