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Validation of Up-the-Ramp Sampling with Cosmic Ray Rejection on IR Detectors

J. D. Offenberg·D. J. Fixsen·B. J. Rauscher·W. J. Forrest·R. J. Hanisch·J. C. Mather·M. E. McKelvey·R. E. McMurray·M. A. Nieto-Santisteban·J. L. Pipher·R. Sengupta·H. S. Stockman
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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 with cosmic ray identification and mitigation is the focus of this study. This technique is valuable for space-based observatories which are exposed to high-radiation environments. We validate the Up-the-Ramp approach on radiation-test data sets with InSb and Si:As detectors which were generated for SIRTF. The Up-the-Ramp sampling method studied in this paper is over 99.9% effective at removing cosmic rays and preserves the structure and photometric quality of the image to well within the measurement error.

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J. D. Offenberg, D. J. Fixsen, B. J. Rauscher, W. J. Forrest, R. J. Hanisch, J. C. Mather, M. E. McKelvey, R. E. McMurray, M. A. Nieto-Santisteban, J. L. Pipher, R. Sengupta, H. S. Stockman. 2000-10-25. Validation of Up-the-Ramp Sampling with Cosmic Ray Rejection on IR Detectors. https://doi.org/10.1086/318615

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