Home > Research > Publications & Outputs > Heterogeneous Scintillator Geometries to Maximi...

Electronic data

  • Paper 3_Final

    Rights statement: This is the author’s version of a work that was accepted for publication in Radiation Measurements. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Radiation Measurements, 111, 2018 DOI: 10.1016/j.radmeas.2018.02.004

    Accepted author manuscript, 1.77 MB, PDF document

    Available under license: CC BY-NC-ND: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License

Links

Text available via DOI:

View graph of relations

Heterogeneous Scintillator Geometries to Maximise Energy Deposition for Waterborne Beta Particle Detection

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published

Standard

Heterogeneous Scintillator Geometries to Maximise Energy Deposition for Waterborne Beta Particle Detection. / Alton, Tilly; Monk, Stephen David; Cheneler, David.
In: Radiation Measurements, Vol. 111, 04.2018, p. 6-12.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

APA

Vancouver

Alton T, Monk SD, Cheneler D. Heterogeneous Scintillator Geometries to Maximise Energy Deposition for Waterborne Beta Particle Detection. Radiation Measurements. 2018 Apr;111:6-12. Epub 2018 Feb 16. doi: 10.1016/j.radmeas.2018.02.004

Author

Bibtex

@article{f28d15abd29a46c29939834ceb5b1952,
title = "Heterogeneous Scintillator Geometries to Maximise Energy Deposition for Waterborne Beta Particle Detection",
abstract = "Here the geometries that maximise detection efficiency of heterogeneous scintillators used to detect beta particles in aqueous solutions by maximising energy deposition are described. The determination of the geometry was achieved with the Monte Carlo code Geant4 using CaF2:Eu scintillator as a pertinent case study, and validated with experimental data using single crystal CaF2:Eu and heterogeneous CaF2:Eu scintillators. Both 2D and 3D structures composed of arrays of primitive unit cells of packed spheres were examined to find the optimal geometry to maximise detection of volumetric sources of tritium and aqueous Carbon 14 and Lead 210. The 2D structures were evaluated relative to a single crystal scintillator and results show the detection efficiency of the 2D structures is maximised when the sphere radius is c.a. 0.46x the maximum track length of the beta particle in the scintillator. Data for the 3D structures show that the efficiency is maximised when the sphere radius is minimised, but it is further shown that practical issues limit the minimum radius that can be used for transient radiological contamination monitoring.",
keywords = "Tritium, Beta Particles, CaF2:Eu, Scintillator, Flow Cell",
author = "Tilly Alton and Monk, {Stephen David} and David Cheneler",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Radiation Measurements. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Radiation Measurements, 111, 2018 DOI: 10.1016/j.radmeas.2018.02.004",
year = "2018",
month = apr,
doi = "10.1016/j.radmeas.2018.02.004",
language = "English",
volume = "111",
pages = "6--12",
journal = "Radiation Measurements",
issn = "1350-4487",
publisher = "Elsevier Limited",

}

RIS

TY - JOUR

T1 - Heterogeneous Scintillator Geometries to Maximise Energy Deposition for Waterborne Beta Particle Detection

AU - Alton, Tilly

AU - Monk, Stephen David

AU - Cheneler, David

N1 - This is the author’s version of a work that was accepted for publication in Radiation Measurements. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Radiation Measurements, 111, 2018 DOI: 10.1016/j.radmeas.2018.02.004

PY - 2018/4

Y1 - 2018/4

N2 - Here the geometries that maximise detection efficiency of heterogeneous scintillators used to detect beta particles in aqueous solutions by maximising energy deposition are described. The determination of the geometry was achieved with the Monte Carlo code Geant4 using CaF2:Eu scintillator as a pertinent case study, and validated with experimental data using single crystal CaF2:Eu and heterogeneous CaF2:Eu scintillators. Both 2D and 3D structures composed of arrays of primitive unit cells of packed spheres were examined to find the optimal geometry to maximise detection of volumetric sources of tritium and aqueous Carbon 14 and Lead 210. The 2D structures were evaluated relative to a single crystal scintillator and results show the detection efficiency of the 2D structures is maximised when the sphere radius is c.a. 0.46x the maximum track length of the beta particle in the scintillator. Data for the 3D structures show that the efficiency is maximised when the sphere radius is minimised, but it is further shown that practical issues limit the minimum radius that can be used for transient radiological contamination monitoring.

AB - Here the geometries that maximise detection efficiency of heterogeneous scintillators used to detect beta particles in aqueous solutions by maximising energy deposition are described. The determination of the geometry was achieved with the Monte Carlo code Geant4 using CaF2:Eu scintillator as a pertinent case study, and validated with experimental data using single crystal CaF2:Eu and heterogeneous CaF2:Eu scintillators. Both 2D and 3D structures composed of arrays of primitive unit cells of packed spheres were examined to find the optimal geometry to maximise detection of volumetric sources of tritium and aqueous Carbon 14 and Lead 210. The 2D structures were evaluated relative to a single crystal scintillator and results show the detection efficiency of the 2D structures is maximised when the sphere radius is c.a. 0.46x the maximum track length of the beta particle in the scintillator. Data for the 3D structures show that the efficiency is maximised when the sphere radius is minimised, but it is further shown that practical issues limit the minimum radius that can be used for transient radiological contamination monitoring.

KW - Tritium

KW - Beta Particles

KW - CaF2:Eu

KW - Scintillator

KW - Flow Cell

U2 - 10.1016/j.radmeas.2018.02.004

DO - 10.1016/j.radmeas.2018.02.004

M3 - Journal article

VL - 111

SP - 6

EP - 12

JO - Radiation Measurements

JF - Radiation Measurements

SN - 1350-4487

ER -