Measurement of the intrinsic radiopurity of (CS)-C-137/U-235/U-238/Th-232 in CsI(Tl) crystal scintillators

	Measurement of the intrinsic radiopurity of (CS)-C-137/U-235/U-238/Th-232 in CsI(Tl) crystal scintillators
	TEXONO Collaboration
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
	2006
卷号	557 期号:2 页码:490-500
关键词	PULSE-SHAPE DISCRIMINATION DARK-MATTER DETECTION NEUTRINO EXPERIMENTS BETA-DECAY GRAN SASSO DETECTOR SEARCH PERFORMANCES IDENTIFICATION SPECTROSCOPY
通讯作者	Wong, HT (reprint author), Acad Sinica, Inst Phys, Taipei, Taiwan.
英文摘要	The inorganic crystal scintillator CsI(TI) has been used for low energy neutrino and Dark Matter experiments, where the intrinsic radiopurity is an issue of major importance. Low-background data were taken with a Csl(TI) crystal array at the Kuo-Sheng Reactor Neutrino Laboratory. The pulse shape discrimination capabilities of the crystal, as well as the temporal and spatial correlations of the events, provide powerful means of measuring the intrinsic radiopurity of Cs-137 as well as the U-215, U-238 and Th-232 series. The event selection algorithms are described, with which the decay half-lives of (218)po, (214)po, Rn-220, Po-216 and Po-212 were derived. The measurements of the contamination levels, their concentration gradients with the crystal growth axis, and the uniformity among different crystal samples, are reported. The radiopurity in the U-231 and Th-212 series are comparable to those of the best reported in other crystal scintillators. Significant improvements in measurement sensitivities were achieved, similar to those from dedicated massive liquid scintillator detector. This analysis also provides in situ measurements of the detector performance parameters, such as spatial resolution, quenching factors, and data acquisition dead time. (c) 2005 Elsevier B.V. All rights reserved.
学科主题	Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy
类目[WOS]	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Particles & Fields ; Spectroscopy
收录类别	SCI
语种	英语
WOS记录号	WOS:000235498300011
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212647]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	TEXONO Collaboration. Measurement of the intrinsic radiopurity of (CS)-C-137/U-235/U-238/Th-232 in CsI(Tl) crystal scintillators[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2006,557(2):490-500.
APA	TEXONO Collaboration.(2006).Measurement of the intrinsic radiopurity of (CS)-C-137/U-235/U-238/Th-232 in CsI(Tl) crystal scintillators.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,557(2),490-500.
MLA	TEXONO Collaboration."Measurement of the intrinsic radiopurity of (CS)-C-137/U-235/U-238/Th-232 in CsI(Tl) crystal scintillators".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 557.2(2006):490-500.