Characterization of 30 76 Ge enriched Broad Energy Ge detectors for GERDA Phase II

Agostini, M.; Bakalyarov, A.M.; Andreotti, E.; Balata, M.; Barabanov, I.; Baudis, L.; Barros, N.; Bauer, C.; Bellotti, E.; Belogurov, S.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Budjas, D.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E.V.; Di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Freund, K.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmuller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hiller, R.; Hofmann, W.; Hult, M.; Inzhechik, L.V.; Csathy, J.J.; Jochum, J.; Junker, M.; Kazalov, V.; Kermaidic, Y.; Kihm, T.; Kirpichnikov, I.V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneissl, R.; Knopfle, K.T.; Kochetov, O.; Kornoukhov, V.N.; Kuzminov, V.V.; Laubenstein, M.; Lazzaro, A.; Lehnert, B.; Liao, Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Marissens, G.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Ransom, C.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Salathe, M.; Schmitt, C.; Schneider, B.; Schonert, S.; Schutz, A.-.; Schulz, O.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A.A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S.V.; Zinatulina, D.; Zsigmond, A.J.; Zuber, K.; Zuzel, G.

doi:10.1140/epjc/s10052-019-7353-8

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 76Ge into 76Se+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.

Characterization of 30 76 Ge enriched Broad Energy Ge detectors for GERDA Phase II / M. Agostini, A.M. Bakalyarov, E. Andreotti, M. Balata, I. Barabanov, L. Baudis, N. Barros, C. Bauer, E. Bellotti, S. Belogurov, G. Benato, A. Bettini, L. Bezrukov, T. Bode, D. Borowicz, V. Brudanin, R. Brugnera, D. Budjas, A. Caldwell, C. Cattadori, A. Chernogorov, V. D'Andrea, E.V. Demidova, N. Di Marco, A. Domula, E. Doroshkevich, V. Egorov, R. Falkenstein, K. Freund, A. Gangapshev, A. Garfagnini, C. Gooch, P. Grabmayr, V. Gurentsov, K. Gusev, J. Hakenmuller, A. Hegai, M. Heisel, S. Hemmer, R. Hiller, W. Hofmann, M. Hult, L.V. Inzhechik, J.J. Csathy, J. Jochum, M. Junker, V. Kazalov, Y. Kermaidic, T. Kihm, I.V. Kirpichnikov, A. Kirsch, A. Kish, A. Klimenko, R. Kneissl, K.T. Knopfle, O. Kochetov, V.N. Kornoukhov, V.V. Kuzminov, M. Laubenstein, A. Lazzaro, B. Lehnert, Y. Liao, M. Lindner, I. Lippi, A. Lubashevskiy, B. Lubsandorzhiev, G. Lutter, C. Macolino, B. Majorovits, W. Maneschg, G. Marissens, M. Miloradovic, R. Mingazheva, M. Misiaszek, P. Moseev, I. Nemchenok, K. Panas, L. Pandola, K. Pelczar, A. Pullia, C. Ransom, S. Riboldi, N. Rumyantseva, C. Sada, F. Salamida, M. Salathe, C. Schmitt, B. Schneider, S. Schonert, A.-. Schutz, O. Schulz, B. Schwingenheuer, 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. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 79:11(2019 Nov 01). [10.1140/epjc/s10052-019-7353-8]

Characterization of 30 76 Ge enriched Broad Energy Ge detectors for GERDA Phase II

Agostini M.;Bakalyarov A. M.;Andreotti E.;Balata M.;Barabanov I.;Baudis L.;Barros N.;Bauer C.;Bellotti E.;Belogurov S.;Benato G.;Bettini A.;Bezrukov L.;Bode T.;Borowicz D.;Brudanin V.;Brugnera R.;Budjas D.;Caldwell A.;Cattadori C.;Chernogorov A.;D'Andrea V.;Demidova E. V.;Di Marco N.;Domula A.;Doroshkevich E.;Egorov V.;Falkenstein R.;Freund K.;Gangapshev A.;Garfagnini A.;Gooch C.;Grabmayr P.;Gurentsov V.;Gusev K.;Hakenmuller J.;Hegai A.;Heisel M.;Hemmer S.;Hiller R.;Hofmann W.;Hult M.;Inzhechik L. V.;Csathy J. J.;Jochum J.;Junker M.;Kazalov V.;Kermaidic Y.;Kihm T.;Kirpichnikov I. V.;Kirsch A.;Kish A.;Klimenko A.;Kneissl R.;Knopfle K. T.;Kochetov O.;Kornoukhov V. N.;Kuzminov V. V.;Laubenstein M.;Lazzaro A.;Lehnert B.;Liao Y.;Lindner M.;Lippi I.;Lubashevskiy A.;Lubsandorzhiev B.;Lutter G.;Macolino C.;Majorovits B.;Maneschg W.;Marissens G.;Miloradovic M.;Mingazheva R.;Misiaszek M.;Moseev P.;Nemchenok I.;Panas K.;Pandola L.;Pelczar K.;A. Pullia;Ransom C.;S. Riboldi;Rumyantseva N.;Sada C.;Salamida F.;Salathe M.;Schmitt C.;Schneider B.;Schonert S.;Schutz A. -K.;Schulz O.;Schwingenheuer B.;Selivanenko O.;Shevchik E.;Shirchenko M.;Simgen H.;Smolnikov A.;Stanco L.;Vanhoefer L.;Vasenko A. A.;Veresnikova A.;von Sturm K.;Wagner V.;Wegmann A.;Wester T.;Wiesinger C.;Wojcik M.;Yanovich E.;Zhitnikov I.;Zhukov S. V.;Zinatulina D.;Zsigmond A. J.;Zuber K.;Zuzel G.

2019

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 76Ge into 76Se+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.

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	Settori scientifico-disciplinari dell'articolo
	
			Settore FIS/01 - Fisica Sperimentale
Settore FIS/04 - Fisica Nucleare e Subnucleare
		
	Data di pubblicazione
	
			1-nov-2019
		
	Rivista in ANCE
	
			THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
		
	DOI
	
			https://dx.doi.org/10.1140/epjc/s10052-019-7353-8
		
	Tipologia
	
			Article (author)
		
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			01 - Articolo su periodico

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