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The CONUS experiment is searching for coherent elastic neutrino nucleus scattering of reactor anti-neutrinos with four low energy threshold point-contact high-purity germanium spectrometers. An excellent background suppression within the…

Instrumentation and Detectors · Physics 2024-01-01 H. Bonet , A. Bonhomme , C. Buck , K. Fülber , J. Hakenmüller , J. Hempfling , G. Heusser , T. Hugle , M. Lindner , W. Maneschg , T. Rink , H. Strecker , R. Wink

The gamma background flux below 3000 keV in the Laboratori Nazionali del Gran Sasso (LNGS), Italy, has been measured using a 3" diameter NaI(Tl) detector at different underground positions: In hall A, hall B, the interferometer tunnel, and…

Instrumentation and Methods for Astrophysics · Physics 2011-06-06 Marijke Haffke , Laura Baudis , Tobias Bruch , Alfredo D. Ferella , Teresa Marrodan Undagoitia , Marc Schumann , Yiea-Funk Te , Andries van der Schaaf

An infrastructure to characterize germanium detectors has been designed and constructed at the HADES Underground Research Laboratory, located in Mol (Belgium). Thanks to the 223m overburden of clay and sand, the muon flux is lowered by four…

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…

Instrumentation and Detectors · Physics 2011-05-19 B. Majorovits , I. Abt , M. Laubenstein , O. Volynets

The next generation of low-background physics experiments will require the use of materials with unprecedented radio-purity. A gamma-counting facility at the Kimballton Underground Research Facility (KURF) has been commissioned to perform…

Nuclear Experiment · Physics 2011-05-25 P. Finnerty , S. MacMullin , H. O. Back , R. Henning , A. Long , K. T. Macon , J. Strain , R. M. Lindstrom , R. B. Vogelaar

The GENIUS project is a proposal for a large supersensitive Germanium detector system for WIMP and double beta decay searches with a much increased sensitivity relative to existing and other future experiments. In this paper, the…

Astrophysics · Physics 2007-05-23 Laura Baudis , H. V. Klapdor-Kleingrothaus

The Heidelberg Dark Matter Search Experiment (HDMS) is a new ionization Germanium experiment in a special design. Two concentric Ge crystals are housed by one cryostat system, the outer detector acting as an effective shield against…

Astrophysics · Physics 2008-11-26 L. Baudis , A. Dietz , B. Majorovits , F. Schwamm , H. Strecker , H. V. Klapdor-Kleingrothaus

GENIUS is a proposal for a large scale detector of rare events like double beta decay, cold dark matter and low-energy solar neutrinos in real time. The idea of GENIUS is to operate a large amount of ``naked'' Ge detectors in liquid…

High Energy Physics - Phenomenology · Physics 2009-11-10 H. V. Klapdor-Kleingrothaus , C. Tomei

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…

Instrumentation and Detectors · Physics 2017-01-06 M. v. Sivers , B. A. Hofmann , Å. V. Rosén , M. Schumann

The first evidence for neutrinoless double beta decay has been observed in the HEIDELBERG-MOSCOW experiment, which is the most sensitive double beta decay experiment since ten years. This is the first evidence for lepton number violation…

High Energy Physics - Phenomenology · Physics 2017-08-23 H. V. Klapdor-Kleingrothaus

The GERmanium Detector Array (GERDA) experiment located at the INFN Gran Sasso Laboratory (Italy), is looking for the neutrinoless double beta decay of Ge76, by using high-purity germanium detectors made from isotopically enriched material.…

Nuclear Experiment · Physics 2020-02-12 GERDA Collaboration , M. Agostini , A. M. Bakalyarov , M. Balata , I. Barabanov , L. Baudis , C. Bauer , E. Bellotti , S. Belogurov , A. Bettini , L. Bezrukov , T. Bode , V. Brudanin , R. Brugnera , A. Caldwell , C. Cattadori , A. Chernogorov , V. D'Andrea , E. V. Demidova , N. Di Marco , A. Domula , E. Doroshkevich , V. Egorov , R. Falkenstein , A. Gangapshev , A. Garfagnini , C. Gooch , P. Grabmayr , V. Gurentsov , K. Gusev , J. Hakenmüller , A. Hegai , M. Heisel , S. Hemmer , R. Hiller , W. Hofmann , M. Hult , L. V. Inzhechik , J. Janicskó Csáthy , J. Jochum , M. Junker , V. Kazalov , Y. Kermaidic , T. Kihm , I. V. Kirpichnikov , A. Kirsch , A. Kish , A. Klimenko , R. Kneißl , K. T. Knöpfle , O. Kochetov , V. N. Kornoukhov , V. V. Kuzminov , M. Laubenstein , A. Lazzaro , V. I. Lebedev , M. Lindner , I. Lippi , A. Lubashevskiy , B. Lubsandorzhiev , G. Lutter , C. Macolino , B. Majorovits , W. Maneschg , M. Miloradovic , R. Mingazheva , M. Misiaszek , P. Moseev , I. Nemchenok , K. Panas , L. Pandola , A. Pullia , C. Ransom , S. Riboldi , N. Rumyantseva , C. Sada , F. Salamida , C. Schmitt , B. Schneider , J. Schreiner , O. Schulz , B. Schwingenheuer , S. Schönert , A-K. Schütz , O. Selivanenko , E. Shevchik , M. Shirchenko , H. Simgen , A. Smolnikov , L. Stanco , L. Vanhoefer , A. A. Vasenko , A. Veresnikova , K. von Sturm , V. Wagner , A. Wegmann , T. Wester , C. Wiesinger , M. Wojcik , E. Yanovich , I. Zhitnikov , S. V. Zhukov , D. Zinatulina , A. J. Zsigmond , K. Zuber , G. Zuzel

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.…

Nuclear Experiment · Physics 2008-11-26 H. Gómez , S. Cebrián , J. Morales , J. A. Villar

In the search for a monochromatic peak as the signature of neutrinoless double beta decay an excellent energy resolution and an ultra-low background around the $Q$-value of the decay are essential. The LEGEND-200 experiment performs such a…

Instrumentation and Detectors · Physics 2023-02-02 L. Baudis , G. Benato , E. M. Bond , P. -J. Chiu , S. R. Elliott , R. Massarczyk , S. Meijer , Y. Müller

The new project GENIUS will cover a wide range of the parameter space of predictions of SUSY for neutralinos as cold dark matter. Together with DAMA it will be the only experiment which can probe the seasonal modulation signal. Concerning…

High Energy Physics - Phenomenology · Physics 2015-06-25 H. V. Klapdor-Kleingrothaus

The annual modulation of the recoil spectrum observed in an underground detector is well known as the main signature of a possible WIMP signal. The GENIUS-TF experiment, under construction in the Gran Sasso National Laboratory, can search…

High Energy Physics - Phenomenology · Physics 2009-11-10 C. Tomei , A. Dietz , I. Krivosheina , H. V. Klapdor-Kleingrothaus

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…

High Purity Germanium Detectors have excellent energy resolution; the best among the technologies used in double beta decay. Since neutrino-less double beta decay hinges on the search for a rare peak upon a background continuum, this…

Nuclear Experiment · Physics 2019-04-19 Frank T. Avignone , Steven R. Elliott

The GERDA (GERmanium Detector Array) experiment aiming to search for the neutrinoless double beta decay of 76Ge at the Laboratori Nazionali Del Gran Sasso (LNGS), Italy, will operate bare enriched high-purity germanium (HPGe) detectors in…

Four ultra-low background germanium spectrometers, called GeTHU, have been installed at the first phase of China Jinping Underground Laboratory (CJPL-I), and served for material screening of dark matter and neutrino experiments. Recently, a…

Instrumentation and Detectors · Physics 2025-11-24 Jikai Chen , Zhi Zeng , Hao Ma , Jianping Cheng

Double beta decay is indispensable to solve the question of the neutrino mass matrix together with $\nu$ oscillation experiments. The most sensitive experiment since eight years - the Heidelberg-Moscow experiment in Gran-Sasso - already…

High Energy Physics - Phenomenology · Physics 2009-09-25 H. V. Klapdor-Kleingrothaus