Kaur, A; Chambon, L; Loidl, M; Lourenço, V; Rodrigues, M; Zahir, M-L (2025) Determination of Fractional Electron Capture Probabilities of 59Ni by Means of Metallic Magnetic Calorimeters. Journal of Low Temperature Physics, 218 (1-2). pp. 29-38. ISSN 0022-2291

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Abstract

The fractional electron capture probabilities of 59Ni were measured using Metallic Magnetic Calorimeters (MMCs). 59Ni was one of the radionuclides chosen as a part of the European metrology research (EMPIR) project MetroMMC. The measurement was performed by using the Decay energy spectroscopy (DES) technique, where the radionuclide is embedded in the absorber to have a 4π geometry. Two different source preparation techniques adapted for the measurement are also discussed: electroplating on gold foil and micro drop-dispensing on gold nanofoam. The total energy spectra obtained from both sources are compared with each other, and the measured fractional electron capture probabilities are compared with those available in the literature and from the BetaShape code.

Item Type:	Article
Subjects:	Ionising Radiation > Radioactivity
Divisions:	Medical, Marine & Nuclear
Identification number/DOI:	10.1007/s10909-024-03235-6
Last Modified:	16 Feb 2026 13:21
URI:	https://eprintspublications.npl.co.uk/id/eprint/10281