On the measurement of positron emitters with Ge detectors

被引：4

作者：

Peyres, Virginia ^{[1
]}

Garcia-Torano, Eduardo ^{[1
]}

机构：

[1] Lab Metrol Radiac Ionizantes, Madrid 28040, Spain

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 637卷 / 01期

关键词：

Gamma spectrometry; Positron emitters; Standardization; Calibration; EFFICIENCY;

D O I：

10.1016/j.nima.2011.02.035

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This paper discusses the problems related to the measurement of positron emitters with germanium detectors. Five positron emitters with important applications in nuclear medicine (Na-22, F-18, C-11, N-13 and Ga-68) have been studied. Measurements and Monte Carlo simulations have been used to determine the optimal conditions of measurement in gamma-ray spectrometry systems. The results obtained indicate that adding adequate absorbers, detection efficiencies are close to those of gamma emitters of similar energy measured in the same conditions, which allows a rapid calibration of a Ge-based spectrometry system. More accurate results are also presented using a detailed Monte Carlo simulation. Comparison to experimental data shows a good agreement. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：100 / 104

页数：5

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