Skip to Main content Skip to Navigation
Journal articles

Evidence for the Exchange Effect Down to Very Low Energy in the Beta Decays of $^{63}$Ni and $^{241}$Pu

Martin Loidl 1, * Cindy Le Bret 1 Matias Rodrigues 1 Xavier Mougeot 1 
* Corresponding author
1 LNHB - Laboratoire National Henri Becquerel
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
Abstract : Metallic magnetic calorimeters have been used for several years for the determination of the shapes of beta spectra. Experimental spectra of the beta decays of $^{63}$Ni and $^{241}$Pu exhibit, at very low energy, strong deviations from standard theoretical calculations including corrections for screening, radiative, and nuclear size effects. These discrepancies can be attributed to the atomic exchange effect. In particular the spectrum of $^{63}$Ni measured with an electroplated $^{63}$Ni source is in excellent agreement with theory including the exchange effect. This underlines the quality of the experimental spectrum as well as the correctness of the calculation of the exchange effect.
Complete list of metadata

Cited literature [13 references]  Display  Hide  Download
Contributor : Marie-France Robbe Connect in order to contact the contributor
Submitted on : Thursday, February 13, 2020 - 4:25:12 PM
Last modification on : Saturday, June 25, 2022 - 9:13:54 PM
Long-term archiving on: : Thursday, May 14, 2020 - 4:58:08 PM


article_MartinLoidl_JOLT-1393 ...
Files produced by the author(s)





Martin Loidl, Cindy Le Bret, Matias Rodrigues, Xavier Mougeot. Evidence for the Exchange Effect Down to Very Low Energy in the Beta Decays of $^{63}$Ni and $^{241}$Pu. Journal of Low Temperature Physics, Springer Verlag (Germany), 2014, 176, pp.1040 - 1045. ⟨10.1007/s10909-014-1190-9⟩. ⟨cea-01834215⟩



Record views


Files downloads