Development of a 83 mKr source for the calibration of the CENNS-10 liquid argon detector
Development of a 83 mKr source for the calibration of the CENNS-10 liquid argon detector
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开发用于校准 CENNS-10 液氩检测器的 83 mKr 源
DOI：
10.1088/1748-0221/16/04/p04002
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发表时间：
2021
影响因子：
1.3
通讯作者：
Bolozdynya, A.
中科院分区：
文献类型：
--
作者：
Akimov, D.;An, P.;Awe, C.;Barbeau, P.S.;Becker, B.;Belov, V.;Bernardi, I.;Blackston, M.A.;Blokland, L.;Bolozdynya, A.
本文报道了cnns -10型液氩探测器的83 mKr源的制备和校准测量。83 Rb源衰变产生的83 mKr原子通过注入Ar循环回路引入探测器。在83 mKr的衰变过程中，观察到9.4 keV和32.1 keV转换电子产生的闪烁光。该校准源可以表征CENNS-10探测器的低能量响应，并适用于其他低能量阈值探测器。在83 mKr的总衰变能量为41.5 keV时，探测器的能量分辨率为9%。我们分别使用9.4 keV和32.1 keV的两个转换电子对探测器进行了校准分析。
We report on the preparation of and calibration measurements with a 83 mKr source for the CENNS-10 liquid argon detector. 83 mKr atoms generated in the decay of a 83 Rb source were introduced into the detector via injection into the Ar circulation loop. Scintillation light arising from the 9.4 keV and 32.1 keV conversion electrons in the decay of 83 mKr in the detector volume were then observed. This calibration source allows the characterization of the low-energy response of the CENNS-10 detector and is applicable to other low-energy-threshold detectors. The energy resolution of the detector was measured to be 9% at the total 83 mKr decay energy of 41.5 keV. We performed an analysis to separately calibrate the detector using the two conversion electrons at 9.4 keV and 32.1 keV.