Response of AGATA segmented HPGe detectors to gamma-rays up to 15.1 MeV

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Crespi F., Avigo R., Camera F., Benzoni G., Blasi N., Bottoni S., ...More

2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011, Valencia, Spain, 23 - 29 October 2011, pp.1147-1149, (Full Text)

• Publication Type: Conference Paper / Full Text
• Doi Number: 10.1109/nssmic.2011.6154591
• City: Valencia
• Country: Spain
• Page Numbers: pp.1147-1149
• Open Archive Collection: AVESIS Open Access Collection
• Ankara University Affiliated: Yes

Abstract

In many in-beam gamma spectroscopy experiments the detection of high-energy gamma rays in the range up to 10-20 MeV is of primary importance. New generation high-resolution gamma-ray spectrometers like AGATA and GRETA are composed of position sensitive segmented HPGe detectors and provide a reconstruction of the gamma-ray tracks. The performance of AGATA detectors in this energy range has, however, never been studied in detail. A measurement of the response to 15.1 MeV gamma rays has been performed using two HPGe triple clusters of the AGATA Demonstrator array, operating at LNL-INFN. This manuscript presents the preliminary results of a test of the AGATA detectors 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. © 2011 IEEE.