Monte Carlo modeling of scintillator crystal performance for stratified PET detectors with DETECT2000

被引：28

作者：

Cayouette, F ^{[1
]}

Moisan, C

Zhang, N

Thompson, CJ

机构：

[1] McGill Univ, Dept Biomed Engn, Montreal, PQ H3A 2B4, Canada

[2] Univ Laval, St Francois Assise Hosp, Quebec City, PQ G1L 3L5, Canada

[3] Univ Laval, Dept Radiol, Quebec City, PQ G1L 3L5, Canada

[4] McGill Univ, Montreal Neurol Inst, Montreal, PQ H3A 2B4, Canada

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2002年 / 49卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

DETECT2000; Monte Carlo simulations; multilayers scintillation crystals; position-sensitive photomultiplier tubes; positron emission tomography (PET);

D O I：

10.1109/TNS.2002.1039539

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In order to determine the theoretical performance of the multilayer BGO scintillation block used in small positron emission tomography (PET) scanners, we have used the DETECT2000 Monte Carlo simulation of the light transport in scintillation crystals software. The scintillation block is made of two arrays of individual crystals and they are held together by an interconnecting layer. The results given by this software demonstrate that some of the individual crystals in the block could not be distinguished even under the best circumstances. Also, we have found that it would be difficult to correctly distinguish an important fraction of the individual crystals under bad conditions. The simulations determined that the layer connecting the different crystals is the most important factor of degradation of the performance of the scintillation block. Simulations of different widths of interconnecting layer suggest that much better identification could be obtained by reducing the width of this layer.

引用

页码：624 / 628

页数：5

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