Abstract

The GERmanium Detector Array (Gerda) is a low background experiment located at the Laboratori Nazionali del Gran Sasso in Italy, which searches for neutrinoless double-beta decay of \[^{76}\]Ge into \[^{76}\]Se+2e\[^-\]. Gerda has been conceived in two phases. Phase II, which started in December 2015, features several novelties including 30 new 76Ge enriched detectors. These were manufactured according to the Broad Energy Germanium (BEGe) detector design that has a better background discrimination capability and energy resolution compared to formerly widely-used types. Prior to their installation, the new BEGe detectors were mounted in vacuum cryostats and characterized in detail in the Hades underground laboratory in Belgium. This paper describes the properties and the overall performance of these detectors during operation in vacuum. The characterization campaign provided not only direct input for Gerda Phase II data collection and analyses, but also allowed to study detector phenomena, detector correlations as well as to test the accuracy of pulse shape simulation codes.

Details

Title
Characterization of 30 \[^{76}\] Ge enriched Broad Energy Ge detectors for GERDA Phase II
Author
Agostini, M 1 ; Bakalyarov, A M 2 ; Andreotti, E 3 ; Balata, M 4 ; Barabanov, I 5 ; Baudis, L 6 ; Barros, N 7 ; Bauer, C 8 ; Bellotti, E 9 ; Belogurov, S 10 ; Benato, G 6 ; Bettini, A 11 ; Bezrukov, L 5 ; Bode, T 1 ; Borowicz, D 12 ; Brudanin, V 12 ; Brugnera, R 11 ; Budjáš, D 1 ; Caldwell, A 13 ; Cattadori, C 14 ; Chernogorov, A 15 ; V D’Andrea 16 ; Demidova, E V 15 ; N Di Marco 4 ; Domula, A 7 ; Doroshkevich, E 5 ; Egorov, V 12 ; Falkenstein, R 17 ; Freund, K 17 ; Gangapshev, A 18 ; Garfagnini, A 11 ; Gooch, C 13 ; Grabmayr, P 17 ; Gurentsov, V 5 ; Gusev, K 19 ; Hakenmüller, J 8 ; Hegai, A 17 ; Heisel, M 8 ; Hemmer, S 20 ; Hiller, R 6 ; Hofmann, W 8 ; Hult, M 3 ; Inzhechik, L V 5 ; Csáthy, J Janicskó 1 ; Jochum, J 17 ; Junker, M 4 ; Kazalov, V 5 ; Kermaïdic, Y 8 ; Kihm, T 8 ; Kirpichnikov, I V 15 ; Kirsch, A 8 ; Kish, A 6 ; Klimenko, A 21 ; Kneißl, R 13 ; Knöpfle, K T 8 ; Kochetov, O 12 ; Kornoukhov, V N 10 ; Kuzminov, V V 5 ; Laubenstein, M 4 ; Lazzaro, A 1 ; Lehnert, B 7 ; Liao, Y 13 ; Lindner, M 8 ; Lippi, I 20 ; Lubashevskiy, A 12 ; Lubsandorzhiev, B 5 ; Lutter, G 3 ; Macolino, C 4 ; Majorovits, B 13 ; Maneschg, W 8 ; Marissens, G 3 ; Miloradovic, M 6 ; Mingazheva, R 6 ; Misiaszek, M 22 ; Moseev, P 5 ; Nemchenok, I 12 ; Panas, K 22 ; Pandola, L 23 ; Pelczar, K 4 ; Pullia, A 24 ; Ransom, C 6 ; Riboldi, S 24 ; Rumyantseva, N 25 ; Sada, C 11 ; Salamida, F 16 ; Salathe, M 8 ; Schmitt, C 17 ; Schneider, B 7 ; Schönert, S 1 ; A-K Schütz 17 ; Schulz, O 13 ; Schwingenheuer, B 8 ; Selivanenko, O 5 ; Shevchik, E 12 ; Shirchenko, M 12 ; Simgen, H 8 ; Smolnikov, A 21 ; Stanco, L 20 ; Vanhoefer, L 13 ; Vasenko, A A 15 ; Veresnikova, A 5 ; K von Sturm 11 ; Wagner, V 8 ; Wegmann, A 8 ; Wester, T 7 ; Wiesinger, C 1 ; Wojcik, M 22 ; Yanovich, E 5 ; Zhitnikov, I 12 ; Zhukov, S V 2 ; Zinatulina, D 12 ; Zsigmond, A J 13 ; Zuber, K 7 ; Zuzel, G 22 

1  Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany 
2  National Research Centre “Kurchatov Institute”, Moscow, Russia 
3  European Commission, JRC-Geel, Geel, Belgium 
4  INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy 
5  Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia 
6  Physik Institut der Universität Zürich, Zurich, Switzerland 
7  Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany 
8  Max-Planck-Institut für Kernphysik, Heidelberg, Germany 
9  Dipartimento di Fisica, Università Milano Bicocca, Milan, Italy; INFN Milano Bicocca, Milan, Italy 
10  Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia; Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia 
11  Dipartimento di Fisica e Astronomia dell’Università di Padova, Padua, Italy; INFN Padova, Padua, Italy 
12  Joint Institute for Nuclear Research, Dubna, Russia 
13  Max-Planck-Institut für Physik, Munich, Germany 
14  INFN Milano Bicocca, Milan, Italy 
15  Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia 
16  INFN Laboratori Nazionali del Gran Sasso and Università degli Studi dell’Aquila, L’Aquila, Italy 
17  Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany 
18  Max-Planck-Institut für Kernphysik, Heidelberg, Germany; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia 
19  Joint Institute for Nuclear Research, Dubna, Russia; National Research Centre “Kurchatov Institute”, Moscow, Russia; Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany 
20  INFN Padova, Padua, Italy 
21  Joint Institute for Nuclear Research, Dubna, Russia; Max-Planck-Institut für Kernphysik, Heidelberg, Germany 
22  Institute of Physics, Jagiellonian University, Cracow, Poland 
23  INFN Laboratori Nazionali del Sud, Catania, Italy 
24  Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan, Italy 
25  Joint Institute for Nuclear Research, Dubna, Russia; National Research Centre “Kurchatov Institute”, Moscow, Russia 
Pages
1-24
Publication year
2019
Publication date
Nov 2019
Publisher
Springer Nature B.V.
ISSN
14346044
e-ISSN
14346052
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1140/epjc/s10052-019-7353-8
ProQuest document ID
2319109678
Copyright
The European Physical Journal C is a copyright of Springer, (2019). All Rights Reserved., © 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.