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

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Budjáš,  Dusan
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Hampel,  Wolfgang
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Heisel,  Mark
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Heusser,  Gerd
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Maneschg,  Werner
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Schönert,  Stefan
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Simgen,  Hardy
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Smolnikov,  Anatoly
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Zuzel,  Gregorz
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Citation

Budjáš, D., Cattadori, C., Gangapshev, A., Hampel, W., Heisel, M., Heusser, G., et al. (2008). Highly sensitive gamma-spectrometers of GERDA for material screening: Part I. In The Proceedings of the 14th International Baksan School "Particles and Cosmology-2007". Moscow 117312, Russia: Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect 7a.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-7A3D-3
Abstract
The GERDA experiment aims to search for the neutrinoless double beta-decay of 76Ge and possibly for other rare processes. The sensitivity of the first phase is envisioned to be more than one order of magnitude better than in previous 0νββ-decay experiments. This implies that materials with ultra-low radioactive contamination need to be used for the construction of the detector and its shielding. Therefore the requirements on material screening include high-sensitivity low-background detection techniques and long measurement times. In this article, an overview of material-screening laboratories available to the GERDA collaboration is given, with emphasis on the gamma-spectrometry. Additionally, results of an intercomparison of the evaluation accuracy in these laboratories are presented.