Shakeup and shakeoff satellite structure in the electron spectrum of 83Krm
Abstract
The isotope 83Krm, a 1.8-hr isomer of stable 83Kr, has become a standard for the calibration of tritium beta decay experiments to determine neutrino mass. It is also widely used as a low-energy electron source for the calibration of dark-matter experiments. The nominally monoenergetic internal conversion lines are accompanied by shakeup and shakeoff satellites that modify the line shape. We draw on theoretical and experimental information to derive a quantitative description of the satellite spectrum of the K-conversion line.
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