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

Emfietzoglou, D; Karava, K; Papamichael, G; Moscovitch, M

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	https://dspace.lib.ntua.gr/xmlui/handle/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