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On the Absorber Thickness of Microcalorimetric Detectors in Experiments at Nuclear Storage Rings

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Abstract

Low-temperature calorimetric detectors are now successfully used in experiments on Lamb-Shift measurements at experimental storage rings. Strong Doppler broadening of the detected X-ray lines is a prominent feature of these experiments. Accordingly, an optimization procedure for the absorber thickness is proposed that considers the self-width of the X-ray detector line, the Doppler broadening, and the absorption efficiency, taking into account the possibility of the escape of secondary radiation. The optimum thickness for Sn-absorbers in this type of experiments is determined as 0.17 mm.

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Acknowledgments

This work was supported by the Emmy Noether Young Researchers Program of the Deutsche Forschungsgemeinschaft (DFG) and the Helmholtz International Center for FAIR (HICforFAIR).

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Authors and Affiliations

  1. Institute of Nuclear Physics, Lomonosov Moscow State University, Leninskie Gory 1(2), GSP-1, Moscow, Russia, 119991

    V. A. Andrianov

  2. Institute for Atomic and Moleculare Physics, Justus-Liebig-Universität, Giessen, Germany

    V. A. Andrianov, S. Kraft-Bermuth & P. Scholz

Authors
  1. V. A. Andrianov
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  2. S. Kraft-Bermuth
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  3. P. Scholz
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Correspondence to V. A. Andrianov.

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Andrianov, V.A., Kraft-Bermuth, S. & Scholz, P. On the Absorber Thickness of Microcalorimetric Detectors in Experiments at Nuclear Storage Rings. J Low Temp Phys 184, 238–243 (2016). https://doi.org/10.1007/s10909-016-1474-3

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  • DOI: https://doi.org/10.1007/s10909-016-1474-3

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