A simulation to model position encoding multicrystal PET detectors

被引：67
|
作者：
Tsang, G
Moisan, C
Rogers, JG
机构：
[1] TRIUMF, Vancouver BC
来源：
IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 1995年 / 42卷 / 06期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1109/23.489420
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：
We have developed a simulation to model position encoding multicrystal detectors for positron emission tomography. The simulation is designed to treat the interactions of energetic photons in a scintillator, the geometry of the multicrystal array, as well as the propagation and detection of individual scintillation photons. The simulation is tested with a model of the EXACT AR PLUS block detector manufactured by Siemens-CTI, Position and energy responses derived from the simulation are compared to measured ones. Line spread functions, for four columns of crystals, are reproduced with an accuracy of +/- 0.5 mm, The crystal-by-crystal photopeak pulse heights and FWHM's are also predicted within a range of +/- 14%, and (-6)(+9)%, respectively.
引用
收藏
页码：2236 / 2243
页数：8
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