Water is often used as the medium for characterizing the effects of radiation on living tissue. However, in this study, charged-particle track simulations are employed to quantify the induced physicochemical and potential biological implications when a primary ionising particle with energy 10 keV strikes a medium made up entirely of water or pyrimidine. Note that pyrimidine was chosen as the DNA/RNA bases cytosine, thymine, and uracil can be considered pyrimidine derivatives. This study aims to assess the influence of the choice of medium on the charged-particle transport, and identify how appropriate it is to use water as the default medium to describe the effects of ionising radiation on living tissue. Based on the respective electron interaction cross sections, we provide a model, which allows the study of radiation effects not only in terms of energy deposition (absorbed dose and stopping power) but also in terms of the number of induced molecular processes. Results of these parameters for water and pyrimidine are presented and compared.
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7 June 2015
Research Article|
June 01 2015
The role of pyrimidine and water as underlying molecular constituents for describing radiation damage in living tissue: A comparative study
M. C. Fuss;
M. C. Fuss
1
Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas (CSIC)
, Serrano 113-bis, 28006 Madrid, Spain
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L. Ellis-Gibbings;
L. Ellis-Gibbings
1
Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas (CSIC)
, Serrano 113-bis, 28006 Madrid, Spain
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D. B. Jones;
D. B. Jones
2School of Chemical and Physical Sciences,
Flinders University
, GPO Box 2100, Adelaide, South Australia 5001, Australia
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M. J. Brunger;
M. J. Brunger
2School of Chemical and Physical Sciences,
Flinders University
, GPO Box 2100, Adelaide, South Australia 5001, Australia
3Institute of Mathematical Sciences,
University of Malaya
, 50603 Kuala Lumpur, Malaysia
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F. Blanco
;
F. Blanco
4Departamento de Física Atómica, Molecular y Nuclear,
Universidad Complutense de Madrid
, Avenida Complutense, 28040 Madrid, Spain
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A. Muñoz;
A. Muñoz
5
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas
, Avenida Complutense 22, 28040 Madrid, Spain
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P. Limão-Vieira;
P. Limão-Vieira
2School of Chemical and Physical Sciences,
Flinders University
, GPO Box 2100, Adelaide, South Australia 5001, Australia
6Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia,
Universidade Nova de Lisboa
, 2829-516 Caparica, Portugal
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M. C. Fuss
1
L. Ellis-Gibbings
1
D. B. Jones
2
M. J. Brunger
2,3
F. Blanco
4
A. Muñoz
5
P. Limão-Vieira
2,6
G. García
1,7,a)
1
Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas (CSIC)
, Serrano 113-bis, 28006 Madrid, Spain
2School of Chemical and Physical Sciences,
Flinders University
, GPO Box 2100, Adelaide, South Australia 5001, Australia
3Institute of Mathematical Sciences,
University of Malaya
, 50603 Kuala Lumpur, Malaysia
4Departamento de Física Atómica, Molecular y Nuclear,
Universidad Complutense de Madrid
, Avenida Complutense, 28040 Madrid, Spain
5
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas
, Avenida Complutense 22, 28040 Madrid, Spain
6Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia,
Universidade Nova de Lisboa
, 2829-516 Caparica, Portugal
7Centre for Medical Radiation Physics,
University of Wollongong
, Wollongong, NSW 2522, Australia
a)
Author to whom correspondence should be addressed. Electronic mail: [email protected]. Tel.: +34 91 5616800 ext. 943214. Fax: +34 91 5854894.
J. Appl. Phys. 117, 214701 (2015)
Article history
Received:
February 06 2015
Accepted:
May 16 2015
Citation
M. C. Fuss, L. Ellis-Gibbings, D. B. Jones, M. J. Brunger, F. Blanco, A. Muñoz, P. Limão-Vieira, G. García; The role of pyrimidine and water as underlying molecular constituents for describing radiation damage in living tissue: A comparative study. J. Appl. Phys. 7 June 2015; 117 (21): 214701. https://doi.org/10.1063/1.4921810
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