On the elimination of the afterglow of CsI(Tl) scintillation detector

被引：9

作者：

Alfassi, Z. B. ^{[1
]}

Ifergan, Y.

Wengrowicz, U. ^{[2
]}

Weinstein, Marcelo ^{[2
]}

机构：

[1] Ben Gurion Univ Negev, Dept Nucl Engn, IL-84105 Beer Sheva, Israel

[2] Nucl Res Ctr Negev, IL-84190 Beer Sheva, Israel

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2009年 / 606卷 / 03期

关键词：

Scintillators; Afterglow; Temperature effect; CSI-TL; SUPPRESSION; EU2+;

D O I：

10.1016/j.nima.2009.05.002

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The use of CsI(Tl) in survey meters is limited to low dose-rate fields due to the afterglow effect, which can take up to 20 min in case of 120 s exposure to 4 R/h field. Even mixtures of low and high dose-rate fields are prohibited since the afterglow effect of the high dose-rate field prevents the use of the meter in the low dose-rate field. It was found that heating the scintillation detector to 60 degrees C shortened considerably the time of the afterglow effect to 3 s, even after exposure of 120 s to fields of 4 R/h. It is suggested to start heating the detector immediately when reaching high dose-rate field and adjusting the calibration to the measured temperature. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：585 / 588

页数：4

共 6 条

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