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- Title
CEPA: A LaBr<sub>3</sub>(Ce)/LaCl<sub>3</sub>(Ce) PHOSWICH ARRAY FOR SIMULTANEOUS DETECTION OF PROTONS AND GAMMA RADIATION EMITTED IN REACTIONS AT RELATIVISTIC ENERGIES.
- Authors
SÁNCHEZ DEL RÍO, J.; BORGE, M. J. G.; NÁCHER, E.; PEREA, A.; RIBEIRO, G.; TENGBLAD, O.; MÅRTENSSON, M.; NILSSON, T.; JOHANSSON, H. T.
- Abstract
A 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 ΔELaBr3 − ETot telescope or, for very high energies, as a double energy loss detector (ΔELaBr3 + ΔELaCl3), 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.
- Publication
International Journal of Modern Physics: Conference Series, 2014, Vol 27, p-1
- ISSN
2010-1945
- Publication type
Article
- DOI
10.1142/S2010194514601434