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Studies of X Rays Induced by Charged Particles*

Published online by Cambridge University Press:  06 March 2019

Jerome L. Duggan ,
William L. Beck ,
Larry Albrecht ,
Lee Munz  and
James D. Spaulding
Jerome L. Duggan
Affiliation:
Oak Ridge Associated Universities, Oak Ridge, Tn.
William L. Beck
Affiliation:
Oak Ridge Associated Universities, Oak Ridge, Tn.
Larry Albrecht
Affiliation:
ORTEC, Inc., Oak Ridge, Tn.
Lee Munz
Affiliation:
ORTEC, Inc., Oak Ridge, Tn.
James D. Spaulding
Affiliation:
Pacific Union University, Angwin, California
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Abstract

Characteristic x rays have been produced for a variety of samples by bombardment with protons in the energy range from 75 keV to 5 MeV. The experiments were performed with two accelerators. For the low-energy studies (less than 150 keV), a Cockcroft-Walton accelerator was used. The higher-energy studies were done with a 5 MV Van de Graaff. The x rays were measured with high-resolution Si(Li) and Ge(Li) detectors. Yields for the cross section of characteristic K- and L-shell ionizations were measured for titanium, vanadium, chromium, manganeses iron, cobalt, nickel, copper, silver, gold, bismuth, and uranium. The experimental cross-sections have been compared to the theoretical predictions of the Born approximation for an interaction of this type.

Trace element analysis by 4-MeV proton bombardment of samples in the 10-12 gm range has also been performed. Some comments with regard to analysis with these sensitivities will be made.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 15: Twentieth Annual Conference on Applications of X-ray Analysis, August 11-13, 1971 , 1971 , pp. 407 - 423
Copyright
Copyright © International Centre for Diffraction Data 1971

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Footnotes

†

ORAU is supported in part by the USAEC.

*

Some of the measurements reported in this paper were made on the 5 MV Van de Graaffaccelerator at the Oak Ridge National Laboratory which is operated by Union Carbide Corporation for the USAEC.

*

Some of the measurements reported in this paper were made on the 5 MV Van de Graaff accelerator at the Oak Ridge National Laboratory which is operated by Union Carbide Corporation for the USAEC.

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