Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8180666 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2012 | 4 Pages |
Abstract
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 16Â mmÃ18Â mmÃ5Â 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 511Â keV is 6.5% FWHM and the timing resolution is 3.1Â 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.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
G. Llosá, J. Barrio, J. Cabello, A. Crespo, C. Lacasta, M. Rafecas, S. Callier, C. de La Taille, L. Raux,