Electroluminescence collection cell as a readout for a high energy resolution Xenon gas TPC
Electroluminescence collection cell as a readout for a high energy resolution Xenon gas TPC
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电致发光收集单元作为高能量分辨率氙气 TPC 的读数
DOI：
10.1016/j.nima.2017.09.015
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Akiyama S.
中科院分区：
文献类型：
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作者：
Ban S.;Nakamura K.D.;Hirose M.;Ichikawa A.K.;Minamino A.;Miuchi K.;Nakaya T.;Sekiya H.;Tanaka S.;Ueshima K.;Yanagita S.;Ishiyama Y.;Akiyama S.
AXEL是正在开发的用于无中微子双β衰变搜索的高压氙气TPC探测器。我们使用比例闪烁模式和一种新的电致发光光检测系统来实现大探测器的高能量分辨率。该探测器还具有跟踪能力，可以实现显著的背景抑制。为了演示我们的探测技术，我们建造了一个充满高达10巴氙气的10 L原型探测器。原型探测器在122keV时，用4巴氙气测得的半高宽能量分辨率为4.0±0.30%，相当于0。9∼2.0%，当外推到136Xe的0νββ衰变的Q值时。
AXEL is a high pressure xenon gas TPC detector being developed for neutrinoless double-beta decay search. We use the proportional scintillation mode with a new electroluminescence light detection system to achieve high energy resolution in a large detector. The detector also has tracking capabilities, which enable significant background rejection. To demonstrate our detection technique, we constructed a 10 L prototype detector filled with up to 10 bar xenon gas. The FWHM energy resolution obtained by the prototype detector with 4 bar Xenon gas is 4.0±0.30% at 122 keV, which corresponds to 0. 9∼ 2. 0% when extrapolated to the Q value of the 0 ν β β decay of 136 Xe.