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Development of cryogenic alpha spectrometers using metallic magnetic calorimeters

Cryogenic particle detectors have recently been adopted in radiation detection and measurement because of their high energy resolution. Many of these detectors have demonstrated energy resolutions better than the theoretical limit of semiconductor detectors. We report the development of a micro-fabr...

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Bibliographic Details
Main Authors: Ranitzsch, Philipp (Author) , Kempf, Sebastian (Author) , Pabinger, Andreas (Author) , Pies, Christian (Author) , Porst, J. -P. (Author) , Schäfer, Stefan (Author) , Fleischmann, Andreas (Author) , Gastaldo, Loredana (Author) , Enss, Christian (Author) , Jang, Y. S. (Author) , Kim, I. H. (Author) , Kim, M. S. (Author) , Kim, Y. H. (Author) , Lee, J. S. (Author) , Lee, K. B. (Author) , Lee, M. K. (Author) , Lee, S. J. (Author) , Yoon, W. S. (Author) , Yuryev, Y. N. (Author)
Format: Article (Journal)
Language:English
Published: 2011
In: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Year: 2011, Volume: 652, Issue: 1, Pages: 299-301
ISSN:1872-9576
DOI:10.1016/j.nima.2010.11.066
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.nima.2010.11.066
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S016890021002557X
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Author Notes:P.C. Ranitzsch, S. Kempf, A. Pabinger, C. Pies, J.-P. Porst, S. Schäfer, A. Fleischmann, L. Gastaldo, C. Enss, Y.S. Jang, I.H. Kim, M.S. Kim, Y.H. Kim, J.S. Lee, K.B. Lee, M.K. Lee, S.J. Lee, W.S. Yoon, Y.N. Yuryev
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Summary:Cryogenic particle detectors have recently been adopted in radiation detection and measurement because of their high energy resolution. Many of these detectors have demonstrated energy resolutions better than the theoretical limit of semiconductor detectors. We report the development of a micro-fabricated magnetic calorimeter coupled to a large-area particle absorber. It is based on a planar, 1mm2 large paramagnetic temperature sensor made of sputtered Au:Er, which covers a superconducting meander-shaped pickup coil coupled to a low-noise dc-SQUID to monitor the magnetization of the sensor. A piece of gold foil of 2.5×2.5×0.07mm3 was glued to the Au:Er film to serve as an absorber for incident alpha particles. The detector performance was investigated with an 241Am source. The signal size comparison for alpha and gamma peaks with a large difference in energy demonstrated that the detector had good linear behavior. An energy resolution of 2.83±0.05keV in FWHM was obtained for 5.5MeV alpha particles.
Item Description:Available online 23 November 2010
Gesehen am 12.09.2022
Physical Description:Online Resource
ISSN:1872-9576
DOI:10.1016/j.nima.2010.11.066

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