Abstract
We propose a next-generation GRB detector combining the Silicon Drift Detector (SDD) array and scintillators with broad-band coverage (0.5-1000 keV or more), high energy resolution (2-10%) and high time resolution (∼ μs). To realize such compact high-performance detector without photomultiplier tubes, we constructed a proto-type model using KETEK SDD with a detection area of 1cm 2 and BGO crystal. Signals from both detectors are clearly separated by the double-integration method. The detector shows a very good performance, although further refinement is in progress. Obtained FWHM energy resolution was 200 eV at 5.9keV in the SDD, while 6.5% at 662 keV in the BGO at -30 degree C.
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