KβKαX-Ray Transition-Probability Ratios for Elements18Z39

Abstract
KβKα x-ray transition-probability ratios for 16 elements in the range 18Z39 were measured with a high-resolution Si(Li) detector. The K vacancies were produced by a heavily filtered bremsstrahlung beam from a commercial x-ray tube. Our results agree qualitatively with the theoretical calculations of Scofield but are consistently about 15% higher.