Scientific characterization of the PICsIT detector of the IBIS telescope

Details Scientific characterization of the PICsIT detector of the IBIS telescope Scientific characterization of the PICsIT detector of the IBIS telescope

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002spie.4497..199m&link_type=abstract

Proc. SPIE Vol. 4497, p. 199-210, X-Ray and Gamma-Ray Instrumentation for Astronomy XII, Kathryn A. Flanagan; Oswald H. Siegmund

Astronomy and Astrophysics

Astronomy

2

Scientific paper

INTEGRAL is the forthcoming European Space Agency's (ESA) satellite mission for gamma-ray astronomy, which will be launched in 2002. IBIS is the imaging telescope onboard INTEGRAL and will produce images of the gamma-ray sky in the region between 15 keV and 10 MeV by means of a two-layer position sensitive detection plane coupled with a coded aperture mask. The detection plane of IBIS comprises two detectors: ISGRI, operative in the 15 keV - 1 MeV range, and PICsIT, 150 keV - 10 MeV. The PICsIT instrument, which is the high energy plane of the IBIS imager, comprises 8 individual modules of 512 detection elements. The modules are arranged in a 4 x 2 pattern, while the pixels are in a 16 x 32 array within each module. Detailed simulation programs of PICsIT qualification and flight model have been set up in order to provide a complete scientific characterization of the detector in terms of spectral and imaging performances. These simulation programs have also been used to reproduce the on-ground calibration results, and will be the basis for the production of the response matrix.

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