Metallic magnetic calorimeters for beta spectrometry

Martin Loidl 1 Matias Rodrigues 1 Benjamin Censier 1 S. Kowalski 1 Xavier Mougeot 1 Philippe Cassette 1 Thierry Branger 1 Didier Lacour 1
1 LNHB - Laboratoire National Henri Becquerel
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
Abstract : We are developing metallic magnetic calorimeters for beta spectrometry in the context of ionizing radiation metrology. The aim is the determination of the shape factors of beta spectra. Our latest detector has been designed to measure the spectrum of $^{241}$Pu, a pure beta emitter with an endpoint energy of 20.8 keV. We present the spectrum resulting from our first measurement and compare it with theoretical spectra.
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Martin Loidl, Matias Rodrigues, Benjamin Censier, S. Kowalski, Xavier Mougeot, et al.. Metallic magnetic calorimeters for beta spectrometry. AIP Conference Proceedings, American Institute of Physics, 2009, The Thirteenth International Workshop on Low Temperature Detectors—LTD13, 1185, pp.587. ⟨10.1063/1.3292410⟩. ⟨cea-02475291⟩

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