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

Angus Siberry; David Hambley; Anna Maria Adamska; Ross S Springell

doi:10.1016/j.radphyschem.2021.109359

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

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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 language	English
Article number	109359
Number of pages	8
Journal	Radiation Physics and Chemistry
Volume	182
Early online date	23 Jan 2021
DOIs	https://doi.org/10.1016/j.radphyschem.2021.109359
Publication status	Published - 1 May 2021

Keywords

Alpha radiation
Dosimetry
UO2
Radiolysis
SRIM
Spent Fuel

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10.1016/j.radphyschem.2021.109359

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https://arxiv.org/abs/2101.08174

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title = "A mathematical model to describe the alpha dose rate from a UO2 surface",

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.",

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T1 - A mathematical model to describe the alpha dose rate from a UO2 surface

AU - Siberry, Angus

AU - Hambley , David

AU - Adamska, Anna Maria

AU - Springell, Ross S

PY - 2021/5/1

Y1 - 2021/5/1

N2 - 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.

AB - 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.

KW - Alpha radiation

KW - Dosimetry

KW - UO2

KW - Radiolysis

KW - SRIM

KW - Spent Fuel

U2 - 10.1016/j.radphyschem.2021.109359

DO - 10.1016/j.radphyschem.2021.109359

M3 - Article (Academic Journal)

SN - 0969-806X

VL - 182

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

M1 - 109359

ER -

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

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