PRECISION MEASUREMENT OF THE MOMENTA OF CONVERSION ELECTRON LINES FROM SOURCES OF 212PB (THB),
Abstract
Momentum ratios of some of the more intense internal conversion lines from sources of thorium radioactive deposit have been determined with accuracies of 1 to 4 parts in 100,000 using an iron-free beta spectrometer. Accurate absolutevalues of the momenta were obtained from intercomparisons of these line momenta with that of the K-412 internal conversion line in 198Hg. The X-ray self-calibration method of Siegbahn is discussed in some detail and is shown to be less accurate at this time. The results are analyzed on both the 1955 and 1963 least-squares adjusted values of the fundamental constants. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 26, 1964
- Accession Number
- AD0612989
Entities
People
- G. Murray
- J. S. Geiger
- R. L. Graham