TY  - JOUR
AU  - Llosa, G.
AU  - Barrio, J.
AU  - Cabello, J.
AU  - Crespo, A.
AU  - Lacasta, C.
AU  - Rafecas, M.
AU  - Callier, S.
AU  - de la Taille, C.
AU  - Raux, L.
PY  - 2012
DA  - 2012//
TI  - Detector characterization and first coincidence tests of a Compton telescope based on LaBr3 crystals and SiPMs
T2  - Nucl. Instrum. Methods Phys. Res. A
JO  - Nuclear Instruments & Methods in Physics Research A
SP  - 105
EP  - 108
VL  - 695
PB  - Elsevier Science Bv
KW  - Hadron therapy
KW  - Compton imaging
KW  - LaBr3
KW  - Continuous crystal
KW  - SiPM
KW  - MPPC
KW  - G-APD
AB  - A Compton telescope for dose monitoring in hadron therapy consisting of several layers of continuous LaBr3 crystals coupled to silicon photomultiplier (SiPM) arrays is under development within the ENVISION project. In order to test the possibility of employing such detectors for the telescope, a detector head consisting of a continuous 16 mm x 18 mm x 5 mm LaBr3 crystal coupled to a SiPM array has been assembled and characterized, employing the SPIROC1 ASIC as readout electronics. The best energy resolution obtained at 511 key is 6.5% FWHM and the timing resolution is 3.1 ns FWHM. A position determination method for continuous crystals is being tested, with promising results. In addition, the detector has been operated in time coincidence with a second detector layer, to determine the coincidence capabilities of the system. The first tests are satisfactory, and encourage the development of larger detectors that will compose the telescope prototype.
SN  - 0168-9002
UR  - https://doi.org/10.1016/j.nima.2011.11.041
DO  - 10.1016/j.nima.2011.11.041
LA  - English
N1  - WOS:000311469900020
ID  - Llosa_etal2012
ER  -