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  Highly sensitive gamma-spectrometers of GERDA for material screening: Part II.

Budjas, D., Hampel, W., Heisel, M., Keillor, M., Laubenstein, M., Maneschg, W., et al. (submitted). Highly sensitive gamma-spectrometers of GERDA for material screening: Part II.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-7ABD-5 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-7ABE-3
Genre: Conference Paper

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 Creators:
Budjas, Dusan1, Author           
Hampel, Wolfgang1, Author           
Heisel, Mark1, Author           
Keillor, Marty1, Author           
Laubenstein, Matthias2, Author
Maneschg, Werner1, Author           
Rugel, Georg1, Author           
Schönert, Stefan1, Author           
Simgen, Hardy1, Author           
Strecker, Herbert1, Author           
Affiliations:
1Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society, ou_904549              
2Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA, USA Laboratori Nazionali Del Gran Sasso, SS 17 bis Km18+910, 67010 Assergi (AQ), Italy Technische Universität München (E15), James-Franck-Strasse 1, 85747 Garching, Germany, ou_persistent22              

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 Abstract: The previous article about material screening for Gerda points out the importance of strict material screening and selection for radioimpurities as a key to meet the aspired background levels of the Gerda experiment. This is directly done using low-level gamma-spectroscopy. In order to provide sufficient selective power in the mBq/kg range and below, the employed gamma-spectrometers themselves have to meet strict material requirements, and make use of an elaborate shielding system. This article gives an account of the setup of two such spectrometers. Corrado is located in a depth of 15 m w.e. at the MPI-K in Heidelberg (Germany), Gempi III is situated at the Gran-Sasso underground laboratory at 3500 m w.e. (Italy). The latter one aims at detecting sample activities of the order µBq/kg, which is the current state-of-the-art level. The applied techniques to meet the respective needs are discussed and demonstrated by experimental results.

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 Dates: 2008
 Publication Status: Submitted
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 Identifiers: eDoc: 367098
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Title: 14th International Baksan School "Particles and Cosmology-2007"
Place of Event: Baksan Valley, Kabardino-Balkaria, Russian Federation
Start-/End Date: 2007-04-16 - 2007-04-21

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Title: The Proceedings of the 14th International Baksan School "Particles and Cosmology-2007"
Source Genre: Proceedings
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