BAF2 SCINTILLATORS WITH WIRE CHAMBER READOUT FOR POSITRON EMISSION TOMOGRAPHY

被引：12

作者：

BRUYNDONCKX, P

DEBRUYNE, J

ETIENNE, L

GRUWE, M

GUERARD, B

TAVERNIER, S

SHUPING, Z

机构：

[1] Interuniversity Institute for High Energies, VUB-ULB, 1050 Brussels

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1991年 / 310卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(91)91007-I

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This work is part of the design study for a medical positron emission tomography (PET) system based on the use of BaF2 scintillator and photosensitive wire chambers with TMAE. The number of photoelectrons per MeV (phe/MeV) is measured in the wire chamber and on a photomultiplier for crystals from five different suppliers. For the best crystals 26.7 +/- 2.0 phe/MeV in TMAE are observed, corresponding to an average quantum efficiency of TMAE for the fast component of BaF2 of (7.6 +/- 0.7)%. The performance of a PET scanner based on this principle was evaluated with a detailed Monte Carlo simulation. It is shown that the reduced energy resolution with wire chambers has only a marginal effect on the scatter rejection in the scanner. Finally LaF3:Nd3+ as an alternative to BaF2 was tested and found to give a disappointing photoelectron yield.

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收藏

页码：107 / 115

页数：9

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