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High-purity germanium (HPGe) detectors used for low-background gamma ray spectrometry are usually operated under either a fairly low overburden of the order of one meter of water equivalent (mw.e.) or a high overburden of the order of…

A gamma counting station based on high-purity germanium (HPGe) detector was set up for the material screening of the PandaX dark matter experiments in the China Jinping Underground Laboratory. Low background gamma rate of 2.6 counts/min…

仪器与探测器 · 物理学 2016-12-21 Xuming Wang , Xun Chen , Changbo Fu , Xiangdong Ji , Xiang Liu , Yajun Mao , Hongwei Wang , Siguang Wang , Pengwei Xie , Tao Zhang

A new ultra-low background high-purity germanium (HPGe) detector has been installed at the Kamioka underground experimental site. The background count rate in the energy range from 40 keV to 2700 keV is about 25% lower than that of the…

仪器与探测器 · 物理学 2023-12-05 K. Ichimura , H. Ikeda , Y. Kishimoto , M. Kurasawa , A. A. Suzuki , Y. Gando , M. Ikeda , K. Hosokawa , H. Sekiya , H. Ito , A. Minamino , S. Suzuki

We describe a new high-purity germanium (HPGe) detector setup for low-background {\gamma}-ray spectrometry. The GeMSE facility (Germanium Material and meteorite Screening Experiment) is dedicated to material screening for rare event…

仪器与探测器 · 物理学 2017-01-06 M. v. Sivers , B. A. Hofmann , Å. V. Rosén , M. Schumann

Searches for new physics push experiments to look for increasingly rare interactions. As a result, detectors require increasing sensitivity and specificity, and materials must be screened for naturally occurring, background-producing…

仪器与探测器 · 物理学 2021-02-03 D. S. Leonard , I. S. Hahn , W. G. Kang , V. Kazalov , G. W. Kim , Y. D. Kim , E. K. Lee , M. H. Lee , S. Y. Park , E. Sala

The GeMSE (Germanium Material and meteorite Screening Experiment) facility operates a low-background HPGe crystal in an underground laboratory with a moderate rock overburden of 620$\,$m.w.e. in Switzerland. It has been optimized for…

We are currently setting up a facility for low-background gamma-ray spectrometry based on a HPGe detector. It is dedicated to material screening for the XENON and DARWIN dark matter projects as well as to the characterization of meteorites.…

仪器与探测器 · 物理学 2015-10-21 M. von Sivers , B. A. Hofmann , Å. V. Rosén , M. Schumann

We describe the upgrade and performance of the high-purity germanium counting facility Gator, which is dedicated to low-background $\gamma$-ray spectrometry. Gator is operated at the Gran Sasso Underground Laboratory in Italy, at an average…

仪器与探测器 · 物理学 2022-08-24 G. R. Araujo , L. Baudis , Y. Biondi , A. Bismark , M. Galloway

The high-luminosity LHC (HL-LHC) upgrade is setting now a new challenge for particle detector technologies. The increase in luminosity will produce a particle background in the gas-based muon detectors that is ten times higher than under…

Background coming from the $^{42}$Ar decay chain is considered to be one of the most relevant for the GERDA experiment, which aims to search of the neutrinoless double beta decay of $^{76}$Ge. The sensitivity strongly relies on the absence…

A low background germanium gamma ray spectrometer, GeTHU, has been installed at China JinPing underground Laboratory. The integral background count rate between 40 and 2700 keV was 0.6 cpm, and the origin was studied by Monte Carlo…

仪器与探测器 · 物理学 2014-03-10 Yuhao Mi , Hao Ma , Zhi Zeng , Jianping Cheng , Jian Su , Qian Yue

Neutrinoless double beta decay would be a key to understanding the nature of neutrino masses. The next generation of High Purity Germanium experiments will have to be operated with a background rate of better than 10^-5 counts/(kg y keV) in…

仪器与探测器 · 物理学 2011-05-19 B. Majorovits , I. Abt , M. Laubenstein , O. Volynets

A low-background germanium spectrometer has been installed and is being operated in an ultra-low background shield (the Gator facility) at the Gran Sasso underground laboratory in Italy (LNGS). With an integrated rate of ~0.16 events/min in…

天体物理仪器与方法 · 物理学 2015-05-27 L. Baudis , A. D. Ferella , A. Askin , J. Angle , E. Aprile , T. Bruch , A. Kish , M. Laubenstein , A. Manalaysay , T. Marrodan Undagoitia , M. Schumann

The Boulby Underground Germanium Suite (BUGS) comprises three low background, high-purity germanium detectors operating in the Boulby Underground Laboratory, located 1.1 km underground in the north-east of England, UK. BUGS utilises three…

As we move to an era where next generation low-background particle physics experiments begin to be designed and constructed, the ability to assay materials with high sensitivity and at speed with a variety of techniques will be key. This…

仪器与探测器 · 物理学 2025-03-28 P. R. Scovell , E. Meehan , S. M. Paling , M. Thiesse , X. Liu , C. Ghag , M. Ginsz , P. Quirin , D. Ralet

The gamma-ray background in the indoor environment has been measured up to 3 MeV to evaluate the feasibility of studying low cross-section (nanobarn to picobarn range) astrophysical reactions at the Facility for Research in Experimental…

仪器与探测器 · 物理学 2020-07-14 Sathi Sharma , M. Saha Sarkar

Germanium detectors have very good capabilities for the investigation of rare phenomena like the neutrinoless double beta decay. Rejection of the background entangling the expected signal is one primary goal in this kind of experiments.…

核实验 · 物理学 2008-11-26 H. Gómez , S. Cebrián , J. Morales , J. A. Villar

The success of current and future-generation neutrinoless double beta decay experiments relies on the ability to eliminate or reduce extraneous backgrounds. In addition to constructing experiments using radiopure materials and handling in…

The MAJORANA Collaboration is building the MAJORANA DEMONSTRATOR, a 60 kg array of high purity germanium detectors housed in an ultra-low background shield at the Sanford Underground Laboratory in Lead, SD. The MAJORANA DEMONSTRATOR will…

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