HEROICA: an underground facility for the fast screening of germanium detectors

被引：14

作者：

Andreotti, E. ^{[1
]}

Garfagnini, A. ^{[2
,3
]}

Maneschg, W. ^{[4
]}

Barros, N. ^{[5
]}

Benato, G. ^{[6
]}

Brugnera, R. ^{[2
,3
]}

Costa, F. ^{[3
]}

Falkenstein, R. ^{[7
]}

Guthikonda, K. K. ^{[6
]}

Hegai, A. ^{[7
]}

Hemmer, S. ^{[2
,3
]}

Hult, M. ^{[1
]}

Jaenner, K. ^{[4
]}

Kihm, T. ^{[4
]}

Lehnert, B. ^{[5
]}

Liao, H. ^{[8
]}

Lubashevskiy, A. ^{[4
]}

Lutter, G.

Marissens, G.

Modenese, L. ^{[3
]}

Pandola, L. ^{[9
]}

Reissfelder, M. ^{[4
]}

Sada, C. ^{[3
]}

Salathe, M. ^{[4
]}

Schmitt, C. ^{[7
]}

Schulz, O. ^{[8
]}

Schwingenheuer, B. ^{[4
]}

Turcato, M. ^{[3
]}

Ur, C. ^{[3
]}

von Sturm, K.

Wagner, V. ^{[4
]}

Westermann, J. ^{[4
]}

机构：

[1] EC JRC Inst Reference Mat & Measurements, Geel, Belgium

[2] Univ Padua, Dipartimento Fis & Astron, Padua, Italy

[3] INFN Padova, Padua, Italy

[4] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[5] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany

[6] Univ Zurich, Inst Phys, Zurich, Switzerland

[7] Univ Tubingen, Inst Phys, Tubingen, Germany

[8] Max Planck Inst Phys & Astrophys, Munich, Germany

[9] INFN Lab Nazl Gran Sasso LNGS, Assergi, Italy

来源：

JOURNAL OF INSTRUMENTATION | 2013年 / 8卷

基金：

瑞士国家科学基金会;

关键词：

Solid state detectors; Gamma detectors (scintillators; CZT; HPG; HgI etc); Double-beta decay detectors; Cryogenic detectors;

D O I：

10.1088/1748-0221/8/06/P06012

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

HEROICA (Hades Experimental Research Of Intrinsic Crystal Appliances) is an infrastructure to characterize germanium detectors and has been designed and constructed at the HADES Underground Research Laboratory, located in Mol (Belgium). Thanks to the 223 m overburden of clay and sand, the muon flux is lowered by four orders of magnitude. This natural shield minimizes the exposure of radio-pure germanium material to cosmic radiation resulting in a significant suppression of cosmogenic activation in the germanium detectors. The project has been strongly motivated by a special production of germanium detectors for the GERDA experiment. GERDA, currently collecting data at the Laboratori Nazionali del Gran Sasso of INFN, is searching for the neutrinoless double beta decay of Ge-76. In the near future, GERDA will increase its mass and sensitivity by adding new Broad Energy Germanium (BEGe) detectors. The production of the BEGe detectors is done at Canberra in Olen (Belgium), located about 30 km from the underground test site. Therefore, HADES is used both for storage of the crystals over night, during diode production, and for the characterization measurements. A full quality control chain has been setup and tested on the first seven prototype detectors delivered by the manufacturer at the beginning of 2012. The screening capabilities demonstrate that the installed setup fulfills a fast and complete set of measurements on the diodes and it can be seen as a general test facility for the fast screening of high purity germanium detectors. The results are of major importance for a future massive production and characterization chain of germanium diodes foreseen for a possible next generation 1-tonne double beta decay experiment with Ge-76.

引用

页数：19

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