Author/Authors :
ROSSI، M. E. نويسنده , , Malaguti، G. نويسنده , , Foschini، L. نويسنده , , Cocco، G. Di نويسنده , , Stephen، J. B. نويسنده , , Labanti، C. نويسنده , , Gianotti، F. نويسنده , , Mauri، A. نويسنده , , Traci، A. نويسنده , , Trifoglio، M. نويسنده , , Caroli، E. نويسنده , , Celesti، E. نويسنده , , Schiavone، F. نويسنده , , Spizzichino، A. نويسنده ,
Abstract :
PICsIT (Pixellated Imaging CaeSium Iodide Telescope) is the high energy detector of the IBIS telescope on-board the INTEGRAL satellite. PICsIT operates in the gamma-ray energy range between 175 keV and 10 MeV, with a typical energy resolution of 10% at 1 MeV, and an angular resolution of 12 arcmin within a ~100 square degree field of view, with the possibility to locate intense point sources in the MeV region at the few arcmin level. PICsIT is based upon a modular array of 4096 independent CsI(Tl) pixels, ~0.70 cm^2 in cross-section and 3 cm thick. In this work, the PICsIT on-board data handling and science operative modes are described. This work presents the in-flight performances in terms of background count spectra, sensitivity limit, and imaging capabilities.
