Mathematics
Scientific paper
Mar 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4850..824c&link_type=abstract
IR Space Telescopes and Instruments. Edited by John C. Mather . Proceedings of the SPIE, Volume 4850, pp. 824-835 (2003).
Mathematics
Scientific paper
One of the main limitations to the sensitivity of photodetector operated in space comes from responsivity variations and glitches caused by the impacts of charged particles. An international glitch working group (GWG) was created in order to centralize information about these phenomena and prepare future space experiments. Results about the infrared camera ISOCAM on-board the Infrared Space Observatory (ISO) are presented here: - The presented glitch rate has been analytically evaluated and compared to in-flight measurements - The study of temporal and spatial properties of glitches has led to a classification into 3 distinct families. These families are related to the linear energy transfer (LET) of charged particles interacting with the detectors. - Removal of methods of glitch efforts are briefly addressed. - Monte Carlo simulations of radiatiaon effects have been made. Glitch rates, spatial and energetic properties of glitches have been computed. Monte-Carlo results are compared with measured values. - Perspectices and current studies for HERSCHEL are discussed.
Claret Arnaud
Okumura Koryo
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