The proton energy calibration and the corresponding identification efficiency of the Thallium activated Cesium Iodide (CsI(Tl)) crystals of the Fazia detection system have been studied in the range of 59–180 MeV by using the proton beam delivered by the cyclotron of the CCB (Cyclotron Center Bronowice) facility. The light output versus energy is linear in the lower portion of the investigated energy range while showing a deviation from linearity on the higher energy side. The effects of proton induced nuclear collisions have been identified and estimated via Pulse Shape Analysis in CsI(Tl) crystals. Experimental efficiency for proton identification in the examined energy range is deduced and compared with GEANT4 simulations. For a well collimated crystal, and at the highest considered energy, the efficiency value comes out to be about 70%.
Energy response and identification efficiency of CsI(Tl) crystals irradiated with energetic protons / Frosin, C.; Barlini, S.; Poggi, G.; Casini, G.; Bini, M.; Stefanini, A.A.; Valdré, S.; Gruyer, D.; Ciemała, M.; Maj, A.; Ziebliński, M.; Sowicki, B.; Mazurek, K.; Cieplicka-Oryńczak, N.; Matejska-Minda, M.; Bonnet, E.; Borderie, B.; Bougault, R.; Bruno, M.; Buccola, A.; Camaiani, A.; Chibhi, A.; Cinausero, M.; Cicerchia, M.; Dueñas, J.; Fabris, D.; Frankland, J.; Gramegna, F.; Henri, M.; Kordyasz, A.; Kozik, T.; Le Neindre, N.; Lombardo, I.; Lopez, O.; Mantovani, G.; Marchi, T.; Olmi, A.; Ottanelli, P.; Parlog, M.; Piantelli, S.; Pasquali, G.; Upadhyahya, S.; Verde, G.; Vient, E.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - STAMPA. - 951:(2019), pp. 163018-163025. [10.1016/j.nima.2019.163018]
Energy response and identification efficiency of CsI(Tl) crystals irradiated with energetic protons
Frosin, C.;Barlini, S.;Poggi, G.;Bini, M.;Stefanini, A. A.;Valdré, S.;Gruyer, D.;Buccola, A.;Camaiani, A.;Olmi, A.;Ottanelli, P.;Piantelli, S.;Pasquali, G.;
2019
Abstract
The proton energy calibration and the corresponding identification efficiency of the Thallium activated Cesium Iodide (CsI(Tl)) crystals of the Fazia detection system have been studied in the range of 59–180 MeV by using the proton beam delivered by the cyclotron of the CCB (Cyclotron Center Bronowice) facility. The light output versus energy is linear in the lower portion of the investigated energy range while showing a deviation from linearity on the higher energy side. The effects of proton induced nuclear collisions have been identified and estimated via Pulse Shape Analysis in CsI(Tl) crystals. Experimental efficiency for proton identification in the examined energy range is deduced and compared with GEANT4 simulations. For a well collimated crystal, and at the highest considered energy, the efficiency value comes out to be about 70%.
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