DocumentCode :
2559116
Title :
Test of a Compton telescope prototype based on continuous LaBr3 crystals and silicon photomultipliers
Author :
Trovato, M. ; Barrio, J. ; Cabello, Jorge ; Callier, S. ; Gillam, John E. ; de La Taille, C. ; Raux, L. ; Lacasta, Carlos ; Rafecas, Magdalena ; Solaz, Carles ; Stankova, V. ; Torres-Espallardo, Irene ; Llosa, Gabriela
Author_Institution :
Inst. de Fis. Corpuscular, Univ. de Valencia, Paterna, Spain
fYear :
2012
fDate :
Oct. 27 2012-Nov. 3 2012
Firstpage :
3261
Lastpage :
3264
Abstract :
A Compton telescope prototype for dose monitoring in hadron therapy is under development. It will consist of three detector layers and each layer will be made of a continuous LaBr3 crystal coupled to four Silicon Photomultiplier (SiPM) arrays. As a first test, a small prototype made of only two detectors layers has been assembled. The camera is based on continuous LaBr3 and LYSO crystals coupled to a SiPM arrays for gamma-ray detection and readout. The setup consists of a 16×18×5 mm3 LaBr3 crystal coupled to a SiPM array as the first layer of the telescope, and a 16×18×5 mm3 LYSO crystal coupled to another SiPM array as the second layer. The SPIROCI ASIC is employed in the readout electronics. The first coincidence tests have been successfully carried out, using a 22Na source placed at different positions, and allow the reconstruction of a point-like source, encouraging the development and the improvement of the prototype to a full imaging system.
Keywords :
Compton effect; dosimetry; gamma-ray detection; lanthanum compounds; photomultipliers; radiation therapy; readout electronics; 22Na source; Compton telescope prototype test; LYSO crystals; LaBr3; SPIROCI ASIC; SiPM; Silicon Photomultiplier arrays; camera; coincidence tests; continuous LaBr3 crystals; dose monitoring; gamma-ray detection; hadron therapy; point-like source; readout electronics; silicon photomultipliers; Compton telescope; LaBr3 crystal; SiPM; continuous crystal; hadron therapy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE
Conference_Location :
Anaheim, CA
ISSN :
1082-3654
Print_ISBN :
978-1-4673-2028-3
Type :
conf
DOI :
10.1109/NSSMIC.2012.6551743
Filename :
6551743
Link To Document :
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