Neutron to Gamma Pulse Shape Discrimination in Liquid Argon Detectors with High Quantum Efficiency Photomultiplier Tubes

被引：5
作者：
Acciarri, R. [1 ]
Canci, N. [2 ]
Cavanna, F. [1 ]
Kryczynski, P. [3 ]
Pandola, L. [2 ]
Segreto, E.
Szelc, A. M. [1 ,3 ]
机构：
[1] Univ Aquila, I-67100 Laquila, Italy
[2] Ist Nazl Fis Nucl, Lab Nazionali Gran Sasso, Assergi, Italy
[3] CIFJ PAN, Krakow, Poland
来源：
PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON TECHNOLOGY AND INSTRUMENTATION IN PARTICLE PHYSICS (TIPP 2011) | 2012年 / 37卷
关键词：
Liquid Argon; Noble Liquid detectors; Cryogenic Detectors; Dark Matter search; Pulse Shape Discrimination; Particle identification; SCINTILLATION YIELDS; LUMINESCENCE; XENON; DEPENDENCE; ELECTRONS; KRYPTON; DECAY;
D O I：
10.1016/j.phpro.2012.03.732
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A high Light Yield Liquid Argon chamber has been radiated with an Am/Be source for signal-to-background separation level characterization in a Dark Matter Liquid Argon based detector. Apart from the standard nuclear recoil and electron events, from neutron elastic interactions and gamma conversions respectively, an intermediate population has been observed which is attributed to inelastic neutron scatters on Argon nuclei producing Argon recoil and simultaneous gammas from nuclear de-excitation. Taking account of these events results in a better determination of the recoil-like to electron-like separation based on the shape of the scintillation pulse. The results of this recent study as well as from a previous study with a chamber with a lower Light Yield are presented. (C) 2012 Published by Elsevier B. V. Selection and/or peer review under responsibility of the organizing committee for TIPP 11.
引用
收藏
页码：1113 / 1121
页数：9
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