Determination of xenon concentrations in nuclear fuels by electron microprobe analysis
- 14 December 1980
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 13 (12) , 2175-2184
- https://doi.org/10.1088/0022-3727/13/12/004
Abstract
The radial distribution of xenon in irradiated (U,Pu)N and (U,Pu)C nuclear fuels has been determined. When xenon is contained in bubbles larger than 20 AA in diameter the emitted X-ray intensity is deficient and the magnitude of the deficit increases with bubble size. The subsequent errors in the measured gas concentrations are corrected using a computer programme that calculates the integral X-ray intensity for any given configuration of the gas bubbles within the volume of X-ray excitation. The correction model, which takes into account the probability of electron-gas bubble interaction, the depth distribution of X-ray production, and X-ray absorption, is valid for any randomly dispersed second phase with dimensions smaller than the volume of X-ray excitation.Keywords
This publication has 3 references indexed in Scilit:
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- Measurement of retained xenon in advanced fuels by microprobe analysisJournal of Nuclear Materials, 1979
- Distribution in depth of the primary X-ray emission in anticathodes of titanium and leadJournal of Physics D: Applied Physics, 1968