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Towards FAIR: first measurements of metallic magnetic calorimeters for high-resolution x-ray spectroscopy at GSI

Metallic magnetic calorimeters are energy dispersive particle detectors that are operated at temperatures below . Applied to x-ray spectroscopy they combine the high energy resolution of crystal spectrometers with the large energy bandwidth of semiconductor detectors. After the absorption of a photo...

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Bibliographic Details
Main Authors: Hengstler, Daniel (Author) , Keller, Michael (Author) , Schötz, Christian Dominik (Author) , Geist, Jeschua (Author) , Krantz, Matthäus (Author) , Kempf, Sebastian (Author) , Gastaldo, Loredana (Author) , Fleischmann, Andreas (Author) , Gassner, T. (Author) , Weber, G. (Author) , Märtin, R. (Author) , Stöhlker, Th (Author) , Enss, Christian (Author)
Format: Article (Journal)
Language:English
Published: 26 November 2015
In: Physica scripta
Year: 2015, Volume: T166, Pages: ?
ISSN:1402-4896
DOI:10.1088/0031-8949/2015/T166/014054
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1088/0031-8949/2015/T166/014054
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Author Notes:D. Hengstler, M. Keller, C. Schötz, J. Geist, M. Krantz, S. Kempf, L. Gastaldo, A. Fleischmann, T. Gassner, G. Weber, R. Märtin, Th Stöhlker, C. Enss
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Summary:Metallic magnetic calorimeters are energy dispersive particle detectors that are operated at temperatures below . Applied to x-ray spectroscopy they combine the high energy resolution of crystal spectrometers with the large energy bandwidth of semiconductor detectors. After the absorption of a photon its energy is converted into heat. A paramagnetic alloy converts the temperature change into a change of magnetization that is read out by a sensitive superconducting quantum interference device magnetometer. With such a metallic magnetic calorimeter we performed two successful measurements at the internal gas target of the experimental storage ring at GSI. In the first beamtime lithium-like Au-ions were targeted on a N2 and a Xe gas target, respectively. In the second beamtime we observed a projectile beam of bare Xe ions interacting with a Xe gas target. In both experiments we achieved an energy resolution below from to . We were able to detect K-lines of Xe ions of different charge states, including the Lyman series up to Ly-η and could resolve the Ly-β-doublet in H-like Xe.
Item Description:Gesehen am 24.08.2020
Physical Description:Online Resource
ISSN:1402-4896
DOI:10.1088/0031-8949/2015/T166/014054

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