SCINTILLATION CHARACTERISTICS OF PBWO4 SINGLE-CRYSTALS AT ROOM-TEMPERATURE

被引：189

作者：

KOBAYASHI, M

ISHII, M

USUKI, Y

YAHAGI, H

机构：

[1] SHONAN INST TECHNOL,FUJISAWA 251,JAPAN

[2] FURUKAWA CO,IWAKI 97011,JAPAN

[3] FUJITOK CO,KITA KU,TOKYO 114,JAPAN

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1993年 / 333卷 / 2-3期

关键词：

D O I：

10.1016/0168-9002(93)91187-R

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Single crystals of PbWO4 at room temperature show a narrow excitation peak around 325 nm with the FWHM as small as 10 nm and a broad emission peak around 420-440 nm. The light output is about 4.4% of that in BGO. The luminescence is fast with the decay constant less than 10 ns for 84% and as fast as 40 ns for the rest. Degradation in optical transmittance due to gamma-ray irradiation is not large up to at least 10(7) rad in the present crystals which are slightly coloured yellow. Spontaneous recovery of the radiation damage occurs to some extent with a time constant much shorter than 18 days. The above result indicates a possibility that this material may be resistive enough against radiation if colourless crystals could be grown.

引用

页码：429 / 433

页数：5

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