Facility for the radiometric characterization of space-based visible-near infrared detectors
(2023) Journal of Astronomical Telescopes, Instruments, and Systems — Vol. 9, n° 03, p. 036001-036001 (2023)
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- Abstract
- When developing new astronomical instruments, there is a need to perform the char- acterization of their individual components, especially the detectors, to ensure that their performances comply with the scientific objectives of the instrument. A visible- near infrared (VIS-NIR) facility was developed for the absolute and relative radio- metric 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 adjust- able 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 reach- ing 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 astro- nomical detector
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Citations
Cisneros Gonzalez, M. E., Bolsée, D., Pereira, N., Van Laeken, L., Jacobs, L., Vandaele, A. C., Karatekin, Ö., Lauzin, C., & Robert, S. (2023). Facility for the radiometric characterization of space-based visible-near infrared detectors. Journal of Astronomical Telescopes, Instruments, and Systems, 9(03), 036001-036001. https://doi.org/10.1117/1.jatis.9.3.036001 (Original work published 2023)