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Open AccessObservation of time-dependent internal charge amplification in a planar germanium detector at cryogenic temperature
For the first time, time-dependent internal charge amplification through impact ionization has been observed in a planar germanium (Ge) detector operated at cryogenic temperature. In a time period of 30 and 45...
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Article
Open AccessErratum to: The LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs
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Article
Open AccessDevelopment of planar P-type point contact germanium detectors for low-mass dark matter searches
The detection of low-energy deposition in the range of sub-eV through ionization using germanium (Ge) with a bandgap of \(\sim \) ...
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Article
Open AccessThe LUX-ZEPLIN (LZ) radioactivity and cleanliness control programs
LUX-ZEPLIN (LZ) is a second-generation direct dark matter experiment with spin-independent WIMP-nucleon scattering sensitivity above $${1.4 \t...
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Article
Open AccessInvestigation of the electrical conduction mechanisms in P-type amorphous germanium electrical contacts for germanium detectors in searching for rare-event physics
For the first time, electrical conduction mechanisms in the disordered material system is experimentally studied for p-type amorphous germanium (a-Ge) used for high-purity Ge detector contacts. The localizatio...
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Article
Open AccessCharacterization of high-purity germanium detectors with amorphous germanium contacts in cryogenic liquids
For the first time, planar high-purity germanium detectors with thin amorphous germanium contacts were successfully operated directly in liquid nitrogen and liquid argon in a cryostat at the Max-Planck-Institu...
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Article
Open AccessThe impact of the charge barrier height on Germanium (Ge) detectors with amorphous-Ge contacts for light dark matter searches
Germanium (Ge) detectors with ability of measuring a single electron–hole (e–h) pair are needed in searching for light dark matter (LDM) down to the MeV scale. We investigate the feasibility of Ge detectors wi...
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Article
Open AccessAtmospheric charged \(K/\pi \) ratio and measurement of muon annual modulation with a liquid scintillation detector at Soudan
We report a measurement of muon annual modulation in a 12-l liquid scintillation detector with a live-time of more than 4 years at the Soudan Underground Laboratory. Muon minimum ionization in the detector is ...
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Article
Open AccessDirect detection of MeV-scale dark matter utilizing germanium internal amplification for the charge created by the ionization of impurities
Light, MeV-scale dark matter (DM) is an exciting DM candidate that is undetectable by current experiments. A germanium (Ge) detector utilizing internal charge amplification for the charge carriers created by t...