A 222Rn source for low-background liquid scintillation detectors

被引：5

作者：

Johnson, M

Benziger, J

Stoia, C

Calaprice, F

Chen, M

Darnton, N

Loeser, F

Vogelaar, RB

机构：

[1] Princeton Univ, Dept Chem Engn, Princeton, NJ 08544 USA

[2] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 414卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

radon; liquid scintillator;

D O I：

10.1016/S0168-9002(98)00632-9

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A technique for producing a radioactive source suitable for use in a low-background liquid scintillation detector is described. Rn-222 was concentrated from air to prepare liquid scintillator sources spiked with 10(6) Bq/m(3) of the radioisotope. Air was stripped of CO, and water vapor, and passed over cooled charcoal which trapped the radon. The accumulated radon was desorbed and transferred into a pseudocumene-based scintillator. These sources have been used for position calibration in the Counting Test Facility (a 5 m(3) spherical liquid scintillation detector) at the Laboratori Nazionali del Gran Sasso. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：459 / 465

页数：7

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