Photon emission intensities in the decay of U-235.

Appl Radiat Isot

JRC-Geel, Retieseweg 111, B-2440 Geel, Belgium.

Published: August 2017

AI Article Synopsis

  • New measurements were conducted on photon emission intensities in the decay of U-235 using a source prepared from a U-235 solution on a glass plate.
  • Standardization used alpha counting within a defined solid angle, achieving a reference activity with a 0.7% combined uncertainty.
  • Gamma spectrometry utilized calibrated high-purity germanium detectors, with adjustments made for source geometry and coincidence summing effects, leading to a reference line intensity at 185.72 keV with a 1.3% relative standard uncertainty.

Article Abstract

New measurements of photon emission intensities in the decay of U-235 were performed. Source was prepared by deposition of a U-235 solution on glass plate. Standardization was carried out by defined solid angle alpha counting, giving the reference activity with 0.7% relative combined uncertainty. Gamma spectrometry was performed with accurately calibrated high-purity germanium detectors. Corrections for source geometry and coincidence summing effects were applied. The reference line (185.72keV) intensity was obtained with 1.3% relative standard uncertainty.

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http://dx.doi.org/10.1016/j.apradiso.2016.12.045DOI Listing

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