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Imaging of primary and secondary radiation - modelling and experimental results of a radioactive source and a water phantom

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Imaging of primary and secondary radiation - modelling and experimental results of a radioactive source and a water phantom. / Gamage, Kelum; Taylor, Graeme ; Joyce, Malcolm.

In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 763, 01.11.2014, p. 412-416.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Gamage, K, Taylor, G & Joyce, M 2014, 'Imaging of primary and secondary radiation - modelling and experimental results of a radioactive source and a water phantom', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 763, pp. 412-416. https://doi.org/10.1016/j.nima.2014.06.076

APA

Gamage, K., Taylor, G., & Joyce, M. (2014). Imaging of primary and secondary radiation - modelling and experimental results of a radioactive source and a water phantom. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 763, 412-416. https://doi.org/10.1016/j.nima.2014.06.076

Vancouver

Gamage K, Taylor G, Joyce M. Imaging of primary and secondary radiation - modelling and experimental results of a radioactive source and a water phantom. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2014 Nov 1;763:412-416. https://doi.org/10.1016/j.nima.2014.06.076

Author

Gamage, Kelum ; Taylor, Graeme ; Joyce, Malcolm. / Imaging of primary and secondary radiation - modelling and experimental results of a radioactive source and a water phantom. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2014 ; Vol. 763. pp. 412-416.

Bibtex

@article{1fe753fe333d4982966fcd084f22c0ec,
title = "Imaging of primary and secondary radiation - modelling and experimental results of a radioactive source and a water phantom",
abstract = "In this paper the contribution of primary and secondary radiation from a water phantom to a pinhole volume, as a result of three neutron sources (Cf, AmBe and 5 MeV mono-energetic) and two gamma sources (Cs and Co), is separately estimated using the PTRAC particle tracking option available in MCNP. Also in this paper imaging of the mixed radiation field produced by a Van de Graaf accelerator (when a water phantom is present) is described. In the model, a spherical tally volume, 2 cm in diameter, was placed equidistantly from a radioactive source and 30×30×15 cm3 water phantom. Monte Carlo simulations have been carried out to investigate the level of primary and secondary radiation contributing to the pinhole volume directly from the source and from interactions in the phantom respectively. The spatial distribution of counts clearly discriminated the source and the phantom. The results have shown that the percentage of neutrons reflected from the phantom with energies above 1 MeV increases with mean energy of the source. This method has significant potential to characterise secondary radiation in proton therapy, where it would help to verify the location and the energy delivered during the treatment.",
keywords = "Primary and secondary radiation, PTRAC particle tracking, Water phantom, Radiation imaging, Proton therapy",
author = "Kelum Gamage and Graeme Taylor and Malcolm Joyce",
year = "2014",
month = nov,
day = "1",
doi = "10.1016/j.nima.2014.06.076",
language = "English",
volume = "763",
pages = "412--416",
journal = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
publisher = "ELSEVIER SCIENCE BV",

}

RIS

TY - JOUR

T1 - Imaging of primary and secondary radiation - modelling and experimental results of a radioactive source and a water phantom

AU - Gamage, Kelum

AU - Taylor, Graeme

AU - Joyce, Malcolm

PY - 2014/11/1

Y1 - 2014/11/1

N2 - In this paper the contribution of primary and secondary radiation from a water phantom to a pinhole volume, as a result of three neutron sources (Cf, AmBe and 5 MeV mono-energetic) and two gamma sources (Cs and Co), is separately estimated using the PTRAC particle tracking option available in MCNP. Also in this paper imaging of the mixed radiation field produced by a Van de Graaf accelerator (when a water phantom is present) is described. In the model, a spherical tally volume, 2 cm in diameter, was placed equidistantly from a radioactive source and 30×30×15 cm3 water phantom. Monte Carlo simulations have been carried out to investigate the level of primary and secondary radiation contributing to the pinhole volume directly from the source and from interactions in the phantom respectively. The spatial distribution of counts clearly discriminated the source and the phantom. The results have shown that the percentage of neutrons reflected from the phantom with energies above 1 MeV increases with mean energy of the source. This method has significant potential to characterise secondary radiation in proton therapy, where it would help to verify the location and the energy delivered during the treatment.

AB - In this paper the contribution of primary and secondary radiation from a water phantom to a pinhole volume, as a result of three neutron sources (Cf, AmBe and 5 MeV mono-energetic) and two gamma sources (Cs and Co), is separately estimated using the PTRAC particle tracking option available in MCNP. Also in this paper imaging of the mixed radiation field produced by a Van de Graaf accelerator (when a water phantom is present) is described. In the model, a spherical tally volume, 2 cm in diameter, was placed equidistantly from a radioactive source and 30×30×15 cm3 water phantom. Monte Carlo simulations have been carried out to investigate the level of primary and secondary radiation contributing to the pinhole volume directly from the source and from interactions in the phantom respectively. The spatial distribution of counts clearly discriminated the source and the phantom. The results have shown that the percentage of neutrons reflected from the phantom with energies above 1 MeV increases with mean energy of the source. This method has significant potential to characterise secondary radiation in proton therapy, where it would help to verify the location and the energy delivered during the treatment.

KW - Primary and secondary radiation

KW - PTRAC particle tracking

KW - Water phantom

KW - Radiation imaging

KW - Proton therapy

U2 - 10.1016/j.nima.2014.06.076

DO - 10.1016/j.nima.2014.06.076

M3 - Journal article

VL - 763

SP - 412

EP - 416

JO - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

ER -