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.
Response of AGATA segmented HPGe detectors to gamma-rays up to 15.1 MeV / F.C.L. Crespi, R. Avigo, F. Camera, G. Benzoni, N. Blasi, S. Bottoni, A. Bracco, S. Brambilla, P. Casati, F. Coniglio, A. Corsi, A. Giaz, S. Leoni, B. Million, R. Nicolini, L. Pellegri, S. Riboldi, V. Vandone, O. Wieland, S. Akkoyun, A. Atac, D. Bazzacco, M. Bellato, D. Bortolato, E. Calore, M. Ciemala, E. Farnea, A. Gadea, A. Gottardo, M. Kmiecik, A. Maj, D. Mengoni, C. Michelagnoli, D. Montanari, D.R. Napoli, J. Nyberg, F. Recchia, E. Sahin, P.-. Söderström, C. Ur, J.J. Valiente Dobon - In: IEEE Nuclear Science Symposium Conference Record[s.l] : IEEE, 2012. - ISBN 9781467301183. - pp. 1147-1149 (( convegno 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011 tenutosi a Valencia, esp nel 2011 [10.1109/NSSMIC.2011.6154591].
Response of AGATA segmented HPGe detectors to gamma-rays up to 15.1 MeV
F.C.L. CrespiPrimo
;R. Avigo;F. Camera;S. Bottoni;A. Bracco;A. Corsi;A. Giaz;S. Leoni;R. Nicolini;L. Pellegri;S. Riboldi;V. Vandone;D. Montanari;
2012
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.
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