arXivDaily arXiv每日学术速递 周一至周五更新
arXiv physics/0701001physics.ins-det
收藏

LArGe:使用富锗(Ge)探测器进行0 $νββ$衰变搜索时使用液氩(LAr)闪烁的背景抑制

LArGe: Background suppression using liquid argon (LAr) scintillation for 0$νββ$ decay search with enriched germanium (Ge) detectors

M. Di Marco, P. Peiffer, S. Schönert

摘要:

报道了在海德堡MPIK公司的19 kg液氩闪烁探测器中,对裸露的p型高纯锗二极管(HPGe)的测量结果。液态氩-锗系统(LArGe)作为4 $π$反康普顿谱仪操作以抑制HPGe中的背景。这项研究与发展是在GERDA实验的框架内进行的,该实验用富含$^{76}$ Ge的HPGe探测器寻找0 $νββ$衰变。这项工作的目标是开发一种新的方法来区分背景0 $νββ$搜索,这将最终允许调查的有效中微子质量的背景事件下降到逆质量等级规模。在低背景计数的其他应用是预期的。

英文摘要:

Measurements with a bare p-type high purity germanium diode (HPGe) submerged in a 19 kg liquid argon (LAr) scintillation detector at MPIK Heidelberg are reported. The liquid argon--germanium system (LArGe) is operated as a 4$π$ anti-Compton spectrometer to suppress backgrounds in the HPGe. This R&D is carried out in the framework of the GERDA experiment which searches for 0$νββ$ decays with HPGe detectors enriched in $^{76}$Ge. The goal of this work is to develop a novel method to discriminate backgrounds in 0$νββ$ search which would ultimately allow to investigate the effective neutrino mass free of background events down to the inverse mass hierarchy scale. Other applications in low-background counting are expected.

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。

↑