The Phoswich Detection System (PDS) is one of the four narrow field experiments on board the SAX satellite. The PDS will be dedicated to deep temporal and spectral studies of celestial X-ray sources in the 15-300 keV energy band. It also includes a gamma-ray burst monitor. The PDS detector is composed of 4 actively shielded NaI(Tl)/CsI(Na) phoswich scintillators with a total geometric area of 795 cm2 and a field of view of 1.4° (FWHM). The performance of the detector, before its integration with its flight electronic, was tested using standard instrumentation. Here we present results of these tests. The measured energy resolution of the phoswich units is better than 15% at 60 keV, confirming the expectations. Also test results of the anticoincidence shield of CsI(Na) and collimator are discussed.
On ground performance tests of the SAX/PDS detector
Frontera F.;Landini G.;Nicastro L.;Orlandini M.;Zavattini G.;
1997
Abstract
The Phoswich Detection System (PDS) is one of the four narrow field experiments on board the SAX satellite. The PDS will be dedicated to deep temporal and spectral studies of celestial X-ray sources in the 15-300 keV energy band. It also includes a gamma-ray burst monitor. The PDS detector is composed of 4 actively shielded NaI(Tl)/CsI(Na) phoswich scintillators with a total geometric area of 795 cm2 and a field of view of 1.4° (FWHM). The performance of the detector, before its integration with its flight electronic, was tested using standard instrumentation. Here we present results of these tests. The measured energy resolution of the phoswich units is better than 15% at 60 keV, confirming the expectations. Also test results of the anticoincidence shield of CsI(Na) and collimator are discussed.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
