1940/07/01 by P. Morrison, L. I. Schiff · 1 citation
Physics and Astronomy · Medicine · #Radioactive Decay and Measurement Techniques #Crystallography and Radiation Phenomena #Medical Imaging Techniques and Applications #Physics #Radiative transfer #Electron capture #Coupling (piping) #Electron #Atomic physics #Energy (signal processing) #Order (exchange) #Nuclear physics #Quantum mechanics #Materials science
paper · doi:10.1103/physrev.58.24
openalex publication_date 1940/07/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26
Accompanying K capture, as in \ensuremathβ-activity, there is a weak continuous high energy gamma-ray spectrum. The major contribution to the effect is from magnetic radiative capture of a K electron. For an allowed transition using Fermi or Gamow-Teller coupling, the number of gamma-quanta per K electron captured is (\frac\ensuremathα12\ensuremathπ)(\fracWmc2)2, where W is the available energy. For other couplings and forbidden transitions, the effect is of the same order of magnitude.