THEORETICAL MODELING OF LIGHT TRANSPORT IN RECTANGULAR PARALLELEPIPEDIC SCINTILLATORS

被引：29

作者：

CARRIER, C

LECOMTE, R

机构：

[1] Department of Nuclear Medicine and Radiobiology, Centre Hospitalier Universitaire, Université de Sherbrooke, Sherbrooke

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 292卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0168-9002(90)90188-C

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This work proposes a theoretical model of the light transport in rectangular parallelepipedic scintillators. The model is applied to the evaluation of light collection from BGO scintillators used in high-resolution positron emission tomography. Results show that the major limitation of signal is due to the presence of trapped photons in the crystal volume. Covering the plane parallel to the detection surface with a high-refractive-index diffuse reflector or unpolishing of this surface appear as the best solutions to detrap photons to the profit of the detection plane. Some modifications to the rectangular parallelepipedic configuration which would yield similar or better results are also proposed, but can only be evaluated by a Monte Carlo simulation. © 1990.

引用

页码：685 / 692

页数：8

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