Monte Carlo simulation of the energy loss of low-energy electrons in liquid water

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dc.contributor.author Emfietzoglou, D en
dc.contributor.author Karava, K en
dc.contributor.author Papamichael, G en
dc.contributor.author Moscovitch, M en
dc.date.accessioned 2014-03-01T01:19:18Z
dc.date.available 2014-03-01T01:19:18Z
dc.date.issued 2003 en
dc.identifier.issn 0031-9155 en
dc.identifier.uri http://hdl.handle.net/123456789/15407
dc.subject.classification Engineering, Biomedical en
dc.subject.classification Radiology, Nuclear Medicine & Medical Imaging en
dc.subject.other Energy dissipation en
dc.subject.other Ionization en
dc.subject.other Monte Carlo methods en
dc.subject.other Dielectric response en
dc.subject.other Electron beams en
dc.subject.other water en
dc.subject.other article en
dc.subject.other controlled study en
dc.subject.other dielectric constant en
dc.subject.other dispersion en
dc.subject.other electron radiation en
dc.subject.other empiricism en
dc.subject.other energy expenditure en
dc.subject.other energy transfer en
dc.subject.other ionization en
dc.subject.other liquid en
dc.subject.other low energy radiation en
dc.subject.other mathematical computing en
dc.subject.other methodology en
dc.subject.other Monte Carlo method en
dc.subject.other priority journal en
dc.subject.other radiological parameters en
dc.subject.other simulation en
dc.subject.other vapor en
dc.subject.other Electrons en
dc.subject.other Linear Energy Transfer en
dc.subject.other Models, Chemical en
dc.subject.other Models, Statistical en
dc.subject.other Monte Carlo Method en
dc.subject.other Radiometry en
dc.subject.other Scattering, Radiation en
dc.subject.other Solutions en
dc.subject.other Water en
dc.title Monte Carlo simulation of the energy loss of low-energy electrons in liquid water en
heal.type journalArticle en
heal.identifier.primary 10.1088/0031-9155/48/15/308 en
heal.identifier.secondary http://dx.doi.org/10.1088/0031-9155/48/15/308 en
heal.language English en
heal.publicationDate 2003 en
heal.abstract A Monte Carlo code that performs detailed (i.e. event-by-event) simulation of the transport and energy loss of low-energy electrons (similar to50-10000 eV) in water in the liquid phase is presented. The inelastic model for energy loss is based on a semi-empirical dielectric-response function for the valence-shells of the liquid whereas an exchange corrected semi-classical formula was used for K-shell ionization. Following a methodology widely used for the vapour phase, we succeeded in parametrizing the dielectric cross-sections of the liquid in accordance with the Bethe asymptote, thus providing a unified approach for both phases of water and greatly facilitating the computations. Born-corrections at lower energies have been implemented in terms of a second-order perturbation term with a simple Coulomb-field correction and the use of a Mott-type exchange modification. Angular deflections were determined by empirical schemes established from vapour data. Electron tracks generated by the code were used to calculate energy- and interaction-point-kernel distributions at low electron energies in liquid water. The effect of various model assumptions (e.g., dispersion, Born-corrections, phase) on both the single-collision and slowing-down distributions is examined. en
heal.publisher IOP PUBLISHING LTD en
heal.journalName Physics in Medicine and Biology en
dc.identifier.doi 10.1088/0031-9155/48/15/308 en
dc.identifier.isi ISI:000185097400008 en
dc.identifier.volume 48 en
dc.identifier.issue 15 en
dc.identifier.spage 2355 en
dc.identifier.epage 2371 en

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