Corrections for Exchange and Screening Effects in Low-energy Beta Decays

X. Mougeot 1 M. Bé 1 C. Bisch 1 M. Loidl 1
1 LNHB - Laboratoire National Henri Becquerel
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
Abstract : The beta spectra of 241Pu and 63Ni have been recently measured using metallic magnetic calorimeters. This powerful experimental technique allows theoretical beta spectra calculations to be tested at low energy with an accuracy never before achievable. Their comparison with classical beta calculations exhibits a significant deviation below 4 keV for 241Pu and 8 keV for 63Ni. The atomic exchange effect explains the main part of this deviation in the 63Ni beta spectrum. This effect has a significant contribution, equivalent to the magnitude of the screening, in the 241Pu beta spectrum.
Document type :
Journal articles
Complete list of metadatas

https://hal-cea.archives-ouvertes.fr/cea-01848991
Contributor : Marie-France Robbe <>
Submitted on : Wednesday, July 25, 2018 - 1:43:50 PM
Last modification on : Monday, May 13, 2019 - 11:14:12 AM

Identifiers

Collections

CEA | DRT | LIST | DM2I

Citation

X. Mougeot, M. Bé, C. Bisch, M. Loidl. Corrections for Exchange and Screening Effects in Low-energy Beta Decays. Nuclear Data Sheets, Elsevier, 2014, 120, pp.129 - 132. ⟨10.1016/j.nds.2014.07.026⟩. ⟨cea-01848991⟩

Share

Metrics

Record views

110