arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.02207physics.ins-dethep-ex
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用$^{83m}Kr$和$^{22}Na$在不同漂移场中标定液氩探测器

Calibration of liquid argon detector with $^{83m}Kr$ and $^{22}Na$ in different drift field

Weixing Xiong, Mengyun Guan, Changgen Yang, Peng Zhang, Jinchang Liu, Cong Guo, Yuting wei, Youyu Gan, Qin Zhao, Jiajun Li

摘要:

$^{83m}Kr$和$^{22}Na$已用于校准液氩(LAr)探测器。$^{83m}Kr$原子是通过$^{83}Rb$的衰变产生的,通过循环净化系统引入LAr探测器。作为比较,对于41.5keV的$^{83m}Kr$,光产额达到7.26 $\pm$ 0.02光子电子/keV,对于511 keV的$^{22}Na$,光产额达到7.66 $\pm$ 0.01光子电子/keV。在50 ~ 200 V/cm的漂移电场范围内,光产额随漂移电场的变化也有报道。停止灌装后,$^{83m}Kr$的衰减率拟合半衰期为1.83 $\pm$ 0.11 h,与报告值1.83 $\pm$ 0.02 h一致。

英文摘要:

$^{83m}Kr$ and $^{22}Na$ have been used in calibrating a liquid argon (LAr) detector.$^{83m}Kr$ atoms are produced through the decay of $^{83}Rb$ and introduced into the LAr detector through the circulating purification system. The light yield reaches 7.26$\pm$0.02 photonelectrons/keV for 41.5keV from $^{83m}Kr$ and 7.66$\pm$0.01 photonelectrons/keV for the 511keV from $^{22}Na$, as a comparison. The light yield varies with the drift electric field from 50 to 200V/cm have been also reported. After stopping fill, the decay rate of $^{83m}Kr$ with a fitted half-life of 1.83$\pm$0.11 h, which is consistent with the reported value of 1.83$\pm$0.02 h.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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