Response of AGATA segmented HPGe detectors to gamma-rays up to 15.1 MeV
2011
In many in-beam
gamma spectroscopyexperiments the detection of high-energy
gamma raysin the range up to 10–20 MeV is of primary importance. New generation high-resolution
gamma-ray spectrometerslike
AGATAand GRETA are composed of position sensitive segmented HPGe detectors and provide a reconstruction of the
gamma-raytracks. The performance of
AGATAdetectors in this energy range has, however, never been studied in detail. A measurement of the response to 15.1 MeV
gamma rayshas been performed using two HPGe triple clusters of the
AGATADemonstrator array, operating at LNL-INFN. This manuscript presents the preliminary results of a test of the
AGATAdetectors for the measurement of high-energy
gamma rays, in terms of detection efficiency, energy resolution, tracking and performance of the pulse shape
analysis(PSA)
algorithms.
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