Radiation resistivity of large tungstate crystals

被引：12

作者：

Kozma, P ^{[1
]}

Bajgar, R

Kozma, P ^{[1
]}

机构：

[1] Inst Technol Invest, Prague 25163, Czech Republic

[2] Oregon Grad Inst Sci & Technol, Portland, OR 97291 USA

来源：

RADIATION PHYSICS AND CHEMISTRY | 2000年 / 59卷 / 04期

关键词：

scintillation crystals; tungstate crystals; lead tungstate; cadmium tungstate; radiation resistivity; gamma-ray irradiations; optical transmission; CT scanners; electromagnetic calorimeters;

D O I：

10.1016/S0969-806X(00)00296-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Radiation resistivity of large tungstate crystals PbWO4 and CdWO4 has been studied for doses up to 10(5) Gy. Radiation resistivity;was examined by the measurement of optical transmission through tungstate crystals before and after gamma-ray irradiations. The absolute degradation of transmission for 105 Gy dose at the wavelength of the peak emission of both tungstate crystals PbWO4 and CdWO4 were found to be lower than 12.5 and 8.0%, respectively. The complete recovery of radiation damage was observed 15 days after irradiations. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：377 / 380

页数：4