Validation of up-the-ramp sampling with cosmic-ray rejection on infrared detectors

Citation
Jd. Offenberg et al., Validation of up-the-ramp sampling with cosmic-ray rejection on infrared detectors, PUB AST S P, 113(780), 2001, pp. 240-254
Citations number
9
Categorie Soggetti
Space Sciences
Journal title
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
ISSN journal
00046280 → ACNP
Volume
113
Issue
780
Year of publication
2001
Pages
240 - 254
Database
ISI
SICI code
0004-6280(200102)113:780<240:VOUSWC>2.0.ZU;2-U
Abstract
We examine cosmic-ray rejection methodology on data collected from InSb and Si: As detectors. The application of an up-the-ramp sampling technique wit h cosmic-ray identification and mitigation is the focus of this study. This technique is valuable for space-based observatories which are exposed to h igh-radiation environments. We validate the up-the-ramp approach on radiati on-test data sets with InSb and Si: As detectors which were generated for S IRTF. The up-the-ramp sampling method studied in this paper is over 99.9% e ffective at removing cosmic rays and preserves the structure and photometri c quality of the image to well within the measurement error.