Status of the Germanium Detector Array (GERDA) in the search of neutrinoless {beta}{beta} decays of {sup 76}Ge at LNGS

Journal Article · Fri Dec 15 04:00:00 EST 2006 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778806120143· OSTI ID:21076153

Abt, I; Altmann, M ^[1]; Bakalyarov, A M ^[2]; Barabanov, I ^[3]; Bauer, C ^[4]; Bauer, M ^[5]; Bellotti, E ^[6]; Belogurov, S ^[3]; Belyaev, S T ^[2]; Bettini, A ^[7]; Bezrukov, L ^[3]; Brudanin, V ^[8]; Bolotsky, V P ^[9]; Caldwell, A ^[1]; Cattadori, C ^[6]; Chirchenko, M V ^[2]; Chkvorets, O ^[4]; Demidova, E ^[9]; Vacri, A Di ^[10]

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1. Max-Planck-Institut fuer Physik (Germany)
2. Russian Research Center Kurchatov Institute (Russian Federation)
3. Russian Academy of Sciences, Institute for Nuclear Research (Russian Federation)
4. Max-Planck-Institut fuer Kernphysik (Germany)
5. Universitaet Tuebingen, Physikalisches Institut (Germany)
6. Universita di Milano Bicocca e INFN Milano (Italy)
7. Dipartimento di Fisica dell'Universita di Padova e INFN Padova (Italy)
8. Joint Institute for Nuclear Research (Russian Federation)
9. Institute of Theoretical and Experimental Physics (Russian Federation)
10. INFN Laboratori Nazionali del Gran Sasso (Italy)

The Germanium Detector Array (GERDA) in the search for neutrinoless {beta}{beta} decays of {sup 76}Ge at LNGS will operate bare germanium diodes enriched in {sup 76}Ge in an (optional active) cryogenic fluid shield to investigate neutrinoless {beta}{beta} decay with a sensitivity of T{sub 1/2} > 2 x 10{sup 26} yr after an exposure of 100 kg yr. Recent progress includes the installation of the first underground infrastructures at Gran Sasso, the completion of the enrichment of 37.5 kg of germanium material for detector construction, prototyping of low-mass detector support and contacts, and front-end and DAQ electronics, as well as the preparation for construction of the cryogenic vessel and water tank.

• OSTI ID: 21076153
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 12 Vol. 69; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CONSTRUCTION
CRYOGENIC FLUIDS
DOUBLE BETA DECAY
GE SEMICONDUCTOR DETECTORS
GERMANIUM 76
GERMANIUM DIODES
INSTALLATION
ISOTOPE ENRICHED MATERIALS
LIQUEFIED NATURAL GAS
MASS
NUCLEAR DECAY
SENSITIVITY
UNDERGROUND
WATER