Radioactive contamination of CaWO4, ZnWO4, CdWO4, and Gd2SiO5:Ce crystal scintillators

被引：0

作者：

Danevich, FA ^{[1
]}

Georgadze, AS ^{[1
]}

Kobychev, VV ^{[1
]}

Kropivyansky, BN ^{[1
]}

Nagorny, SS ^{[1
]}

Nikolaiko, AS ^{[1
]}

Poda, DV ^{[1
]}

Tretyak, VI ^{[1
]}

Zdesenko, SY ^{[1
]}

Zdesenko, YG ^{[1
]}

Bizzeti, PG ^{[1
]}

Fazzini, TF ^{[1
]}

Maurenzig, PR ^{[1
]}

Solsky, IM ^{[1
]}

Brudanin, VB ^{[1
]}

Avignone, FT ^{[1
]}

机构：

[1] Ukrainian Acad Sci, Inst Nucl Res, UA-03680 Kiev, Ukraine

来源：

TOPICAL WORKSHOP ON LOW RADIOACTIVITY TECHNIQUES | 2005年 / 785卷

关键词：

scintillation detectors; radioactive contamination;

D O I：

暂无

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Radioactive contaminations of CaWO4, ZnWO4, CdWO4, and Gd2SiO5:Ce crystal scintillators were measured in the Solotvina Underground Laboratory. The Monte Carlo simulation of contributing radioactive sources, the time-amplitude and pulse-shape analyses of the experimental data were applied. CaWO4 and GSO scintillators are considerably polluted by uranium and thorium, while the total a activity in ZnWO4 and CdWO4 scintillators does not exceed the level of a few mBq/kg. Particular radioactivity was observed in CaWO4 (alpha active W-180), CdWO4 (P active Cd-113, 2v2 beta decay of Cd-116, W-180), and GSO (alpha active Gd-152) detectors. The radioactive contamination of the studied scintillation crystals is compared with that of commonly used detectors.

引用

页码：87 / 92

页数：6

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