BeppoSAX GRBM on-ground calibration data analysis

Lorenzo Amati; Maria Nerina Cinti; Marco Feroci; Enrico Costa; Filippo Frontera; Daniele Dal Fiume; P. Collina; Luciano Nicastro; M. Orlandini; Eliana Palazzi; Massimo Rapisarda; Guido Zavattini

doi:10.1117/12.283767

15 October 1997 BeppoSAX GRBM on-ground calibration data analysis

Lorenzo Amati, Maria Nerina Cinti, Marco Feroci, Enrico Costa, Filippo Frontera, Daniele Dal Fiume, P. Collina, Luciano Nicastro, M. Orlandini, Eliana Palazzi, Massimo Rapisarda, Guido Zavattini

Author Affiliations +

Proceedings Volume 3114, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII; (1997) https://doi.org/10.1117/12.283767
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

We describe the analysis of BeppoSAX gamma-ray burst monitor on-ground calibrations performed after the full integration of the spacecraft in order to explore in detail the dependence of the detectors efficiency on the direction and energy of impinging photons. Analytical techniques have been used to determine with reasonable accuracy this function by fitting the angular response at different calibration energies with simple models partially derived from the underlying physics and partially semiempirical. Satisfactory results have been obtained for the two detectors which have almost clean field of view and are co-aligned with the wide field cameras. Work is still in progress for the others. Preliminary results of ground calibration analysis have been already used to derive spectral information on gamma-ray bursts impinging parallel to the axis of the two best performing shields.

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Lorenzo Amati, Maria Nerina Cinti, Marco Feroci, Enrico Costa, Filippo Frontera, Daniele Dal Fiume, P. Collina, Luciano Nicastro, M. Orlandini, Eliana Palazzi, Massimo Rapisarda, and Guido Zavattini "BeppoSAX GRBM on-ground calibration data analysis", Proc. SPIE 3114, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII, (15 October 1997); https://doi.org/10.1117/12.283767

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