A mathematical model to describe the alpha dose rate from a UO2 surface

Angus Siberry*, David Hambley , Anna Maria Adamska, Ross S Springell

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

A model to determine the dose rate of a planar alpha-emitting surface has been developed. The approach presented is a computationally efficient mathematical model using stopping range data from the Stopping Ranges of Ions in Matter (SRIM) software. The alpha dose rates as a function of distance from irradiated UO2 spent fuel surfaces were produced for benchmarking with previous modelling attempts. This method is able to replicate a Monte Carlo (MCNPX) study of an irradiated UO2 fuel surface within 0.6% of the resulting total dose rate and displays a similar dose profile.
Original languageEnglish
Article number109359
Number of pages8
JournalRadiation Physics and Chemistry
Volume182
Early online date23 Jan 2021
DOIs
Publication statusPublished - 1 May 2021

Keywords

  • Alpha radiation
  • Dosimetry
  • UO2
  • Radiolysis
  • SRIM
  • Spent Fuel

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