Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-05T23:21:11.720Z Has data issue: false hasContentIssue false
  • English
  • Français

A Compilation of Beta-Ray Stimulated X-Ray Spectra

Published online by Cambridge University Press:  06 March 2019

L. E. Preuss ,
H. Collins  and
E. R. Wilson
L. E. Preuss
Affiliation:
Physics Department, Edsel B. Ford Institute for Medical Research Detroit, Michigan
H. Collins
Affiliation:
Physics Department, Edsel B. Ford Institute for Medical Research Detroit, Michigan
E. R. Wilson
Affiliation:
Physics Department, Edsel B. Ford Institute for Medical Research Detroit, Michigan
Get access

Abstract

The photons resulting from the interaction of beta particles and matter have a certain complexity of origin; but the spectrum is made up, in large part, of two primary components, one of these being the white radiation continuum produced by the external bremsstrahlung mechanism of beta acceleration at the target atom. The second fraction consists of the characteristic K and L X-rays of the target atom. Published beta-excited X-ray spectra are centered about a small fraction of the available pure beta emitters and a restricted group of target materials. Furthermore, intercomparisons between references are difficult, due to an infinite variety of source and detector parameters influencing the data.

This laboratory has begun a comprehensive reference compilation of these spectra, done on a comparative basis and simplified and standardized for sensible cataloging and easy reproduction of the experimental design. The prime purpose is to make available coherent data for many beta-excited X-ray sources in which beta activities, target geometries, and other critical parameters are known, controlled, and constant. Spectral sets for given source-target combinations may, therefore, be intercompared, and application of the beta-excited X-ray may be made with the best possible source-target atom combination.

The spectra are studied by three proportional counters (operating down to the 1 kV energy range) and two standard scintillation crystals, accumulated in a 256-channel analyzer, and are presented in sets (representing one beta source-target combination) consisting of a minimum of eight spectra, six of which represent the most critical transmission target geometry.

Examples of the cataloging of the spectral sets, for the mixture, apposition, and compound isotopic X-ray sources, are presented.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 8: Thirteenth Annual Conference on Applications of X-ray Analysis, August 12-14, 1964 , 1964 , pp. 198 - 203
Copyright
Copyright © International Centre for Diffraction Data 1964

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Cameron, J. F. and Rhodes, J. R., “Beta.-Excited Characteristic X-Rays and Energy Reference Sources,” Intern. J. of Appl. Rad. and Iso., 7: 244, 1960.Google Scholar
2. Coleman, E. W., Brownell, L. E., and Purtiort, S. N., “Studies on X-Rays and Bremstrahlen from Source-Target Mixtures,” University of Michigan Report 2471-1-P, 1956.Google Scholar
3. Edwards, J. E. and Pool, M. L., “Characteristic X-Rays Excited by Beta-Particles,” Phys, Rev., 69: 549, 1946.Google Scholar
4. Kereiakes, J. G. and Krebs, P. T., “Beta-Ray-Excited X-Rays,” Nucleonics, 13: 78, 1955.Google Scholar
5. Reiffel, L., “Beta-Ray-Excited Low-Energy X-Ray Sources,” Nucleonics, 13: 22, 1955.Google Scholar
6. Leoboeuf, M. B. and Stark, B. T., “Excitation of Characteristic X-Rays by Beta-Particles,” General Electric Co., H. W. 31961, May 27, 1954.Google Scholar
7. Preuss, L. E., Horn, H., and Keiser, T. W., “The Spectra of Some Beta-Excited X-Ray Sources with the Multichannel Analyzer,” Advances in X-Ray Analysis, Vol. 4, Plenum Press, New York, 1960, p. 280.Google Scholar
8. Crouthamel, C., “Applied Gamma-Ray Spectrometry,” Pergamon Press, New York, 1960.Google Scholar