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CEPA: A LaBr3(Ce)/LaCl3(Ce) phoswich array for simultaneous detection of protons and gamma radiation emitted in reactions at relativistic energies

AuthorsSánchez del Río, José ; García Borge, María José ; Nácher, Enrique ; Perea, Ángel ; Ribeiro, G.; Tengblad, Olof
Protons and gamma radiation
Issue Date2014
PublisherWorld Scientific Publishing
CitationInternacional Journal of Modern Physics: Conference Series 27: 1460143 (2014)
AbstractA sophisticated design of 750 LaBr3(Ce):LaCl3(Ce) phoswich crystals (CEPA10) with a segmentation determined by the Doppler correction and an energy resolution of 5% at 1 MeV is presented. Monte Carlo simulations have been performed for high energy protons (50–500 MeV) and gamma radiation (0.5–30 MeV) to determine the length and shape of the crystals for optimum performance of the detector. In the case of protons, the two-layer detector can be used as a ∆ELaBr3 – ETot telescope or, for very high energies, as a double energy loss detector (∆ELaBr3 + ∆ELaCl3), in order to determine the initial energy. In addition, an experimental test with high energy protons (70–230 MeV) was performed at the cyclotron center in Krakow, Poland with a first prototype of 2 x 2 phoswich rectangular crystals (CEPA4) packed in an aluminum can (0.5 mm case). To simulate CEPA10 efficiencies and resolutions, optical pulses detected in CEPA4 by photomultiplier tubes with a DAQ system were used as energy input functions in Monte Carlo simulations
Description8 pags.; 9 figs.; Open Access funded by Creative Commons Attribution 3.0 (CC-BY) License; PACS numbers: 29.20.-c;29.38.-c;29.40.Mc;29.40.Vj;29.85.-c;29.90.+r;
Identifiersdoi: 10.1142/S2010194514601434
issn: 2010-1945
Appears in Collections:(CFMAC-IEM) Artículos
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