System characterization and performance studies with MACACO III Compton camera

被引：8

作者：

Barrientos, L. ^{[1
]}

Borja-Lloret, M. ^{[1
]}

Casana, J. V. ^{[1
]}

Hueso-Gonzalez, F. ^{[1
]}

Ros, A. ^{[1
]}

Roser, J. ^{[1
]}

Senra, C. ^{[1
]}

Solaz, C. ^{[1
]}

Viegas, R. ^{[1
]}

Llosa, G. ^{[1
]}

机构：

[1] CSIC UV, Inst Fis Corpuscular IF, Valencia, Spain

来源：

RADIATION PHYSICS AND CHEMISTRY | 2023年 / 208卷

关键词：

Compton camera; Scintillator crystals; Silicon photomultipliers; PROTON THERAPY; RECONSTRUCTION; FEASIBILITY; TELESCOPE; BEAMS;

D O I：

10.1016/j.radphyschem.2023.110922

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The IRIS group of IFIC-Valencia has developed a Compton camera prototype. The system detectors are made of Lanthanum (III) bromide scintillator crystals coupled to silicon photomultipliers. Two models of silicon photomultipliers arrays with different micro pixel pitch (25 and 50 mu m) have been chosen as possible candidates to improve the response of the new system. Characterization studies with a 22Na point-like source have indicated that the 25 mu m photodetector provided better performance in terms of energy resolution (5.2% FWHM at 511 keV) and angular resolution (6.9 degrees FWHM at 1275 keV), and more stability with temperature variations. In addition, MACACO III imaging capabilities have been assessed using a structure composed of thirty-seven 22Na point-like sources. Furthermore, in order to evaluate possible ways of improving the system performance, several studies have been carried out by means of simulations both in realistic and performance improved conditions. In this work, the system performance is evaluated for its future application in different areas.

引用

页数：13

共 49 条

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