Oxygen quenching in a LAB based liquid scintillator and the nitrogen bubbling model

被引：27

作者：

Xiao Hua-Lin ^{[1
]}

Deng Jing-Shan ^{[1
]}

Wang Nai-Yan ^{[1
]}

机构：

[1] Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China

来源：

CHINESE PHYSICS C | 2010年 / 34卷 / 05期

关键词：

Linear Alkl Benzene; oxygen quenching; nitrogen bubbling; liquid scintillator; CALIBRATION;

D O I：

10.1088/1674-1137/34/5/011

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The oxygen quenching effect in a Linear Alkl Benzene (LAB) based liquid scintillator (LAB as the solvent, 3 g/L 2, 5 diphe-nyloxazole (PPO) as the fluor and 15 mg/L p-bis-(o-methylstyryl)-benzene (bis-MSB) as the lambda-shifter) is studied by measuring the light yield as a function of the nitrogen bubbling time. It is shown that the light yield of the fully purged liquid scintillator is increased by 11% at room temperature and the room atmospheric pressure. A simple nitrogen bubbling model is proposed to describe the relationship between the relative light yield (oxygen quenching factor) and the bubbling time.

引用

页码：571 / 575

页数：5

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