Status of the Germanium Detector Array (GERDA) for the Search of Neutrinoless Double-Beta Decays of 76Ge at LNGS

The Germanium Detector Array (GERDA) for the search of neutrinoless ßß decays of 76Ge at LNGS will operate bare germanium diodes enriched in 76Ge in an (optional active) cryogenic fluid shield to investigate neutrinoless ßß decay with a sensitivity of T1/2 > 2 × 1026 y after an exposure of 100 kg y. 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, the prototyping of the low-mass detector support and contacts, the front-end and DAQ electronics, as well as the preparation for construction of the cryogenic vessel and water tank.

SCHOENERT S.;  ALTMANN M.;  BAKALYAROV A.;  BALATA M.;  BARABANOV I.;  BAUER C.;  BELLOTTI E.;  BELOGUROV S.;  BELYAEV S.T.;  BERNABE-HEIDER M.;  BETTINI A.;  BEZRUKOV L.;  BRUDANIN V.;  BUDJAS D.;  CALDWELL A.;  CATTADORI C;  CHKVORETS O;  DEMIDOVA E.V.;  DI VACRI A.;  EBERTH J.;  EGOROV V.;  GANGAPSHEV A.;  GASPARRO Joel;  GRABMAYR P.;  GRIGORIEV G.Y.;  GUSEV K.;  GURENTSOV V.;  HAMPEL W.;  HEISEL M.;  HEUSSER G.;  HOFMANN W.;  HULT Mikael;  INZHECHIK L.V.;  JELEN M.;  JOCHUM J.;  JUNKER M.;  KATULINA S.;  KIKO J.;  KIRPICHNIKOV I;  KLIMENKO A.;  KNAPP M.;  KNOEPFLE K.T.;  KOCHETOV O.;  KORNOUKHOV V.N.;  KROENINGER K.;  KUSMINOV V.;  LAUBENSTEIN M.;  LEBEDEV V;  LINDNER M.;  LIU X.;  LIU J.;  MAJOROVITS Bela;  MARISSENS Gerd;  NEMCHENOK I.;  NIEDERMEIER L.;  OEHM J.;  PANDOLA L.;  PEIFFER P.;  PULLIA A.;  RITTER F.;  ROSSI ALVAREZ C.;  SANDUKOVSKY V.;  SCHREINER J.;  SCHWAN U.;  SCHWINGENHEUER B.;  SHIRCHENKO M.;  SIMGEN H.;  SMALE N.;  SMOLNIKOV A.;  STELZER F.;  TIKHOMIROV A.V.;  TOMEI C.;  TRUNK U.;  UR C.A.;  VASENKO A.;  VASILIEV S.;  WEISSHAAR D.;  WOJCIK M.;  YANOVICH E.;  YURKOWSKI J.;  ZHUKOV S.;  ZOCCA E.;  ZUZEL G.; 

2007-11-29

ELSEVIER SCIENCE BV

JRC41825

0146-6410,   

https://publications.jrc.ec.europa.eu/repository/handle/JRC41825,   

10.1016/j.ppnp.2005.12.2006,