Neutron beam tests of CsI(Na) and CaF₂(Eu) crystals for dark matter direct search

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• 作者：C. Guo^a ; ^b ; X.H. Ma^a ; Z.M. Wang^a ; ^{wangzhm@ihep.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; J. Bao^c ; C.J. Dai^a ; M.Y. Guan^a ; J.C. Liu^a ; Z.H. Li^a ; J. Ren^c ; X.C. Ruan^c ; C.G. Yang^a ; Z.Y. Yu^a ; W.L. Zhong^a ; C. Huerta^d
• 关键词：Dark matter direct search ; Neutron beam test ; CaF2(Eu) ; CsI(Na) ; Elastic scattering
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2016
• 出版时间：11 May 2016
• 年：2016
• 卷：818
• 期：Complete
• 页码：38-44
• 全文大小：2124 K

文摘

In recent decades, inorganic crystals have been widely used in dark matter direct search experiments. To contribute to the understanding of the capabilities of CsI(Na) and CaF₂(Eu) crystals, a mono-energetic neutron beam is utilized to study the properties of nuclear recoils, which are expected to be similar to signals of dark matter direct detection. The quenching factor of nuclear recoils in CsI(Na) and CaF₂Eu, as well as an improved discrimination factor between nuclear recoils and 6002047&_mathId=si0016.gif&_user=111111111&_pii=S0168900216002047&_rdoc=1&_issn=01689002&md5=59b378fe1efcb0ffba733f7d835bdde3" title="Click to view the MathML source">γ$\mathrm{\gamma }$ backgrounds in CsI(Na), are reported.