An event-by-event computer simulation of interactions of energetic charged particles and all their secondary electrons in water

Emfietzoglou, D; Papamichael, G; Moscovitch, M

dc.contributor.author	Emfietzoglou, D	en
dc.contributor.author	Papamichael, G	en
dc.contributor.author	Moscovitch, M	en
dc.date.accessioned	2014-03-01T01:49:46Z
dc.date.available	2014-03-01T01:49:46Z
dc.date.issued	2000	en
dc.identifier.issn	0022-3727	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/25909
dc.subject.classification	Physics, Applied	en
dc.subject.other	DIFFERENTIAL CROSS-SECTIONS	en
dc.subject.other	LIQUID WATER	en
dc.subject.other	TRACK STRUCTURE	en
dc.subject.other	VAPOR	en
dc.subject.other	RADIATION	en
dc.subject.other	DISTRIBUTIONS	en
dc.subject.other	IONIZATION	en
dc.subject.other	MOLECULES	en
dc.subject.other	IMPACT	en
dc.subject.other	DEPOSITION	en
dc.title	An event-by-event computer simulation of interactions of energetic charged particles and all their secondary electrons in water	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	A computer code simulating the interaction-by-interaction discrete slowing down process of heavy charged particles (i.e. protons, alpha-particles, and bare heavier ions of z < 10) of speeds greater than about 0.3-1 MeV amu(-1) in water medium is presented. Along with the primary particle, the transport of all secondary (and subsequent generations) electrons is explicitly followed down to the minimum electronic excitation potential of a water molecule. Monte Carlo sampling techniques were applied to accurate probability distribution functions characterizing the particle-molecule interaction. The entire secondary electron energy spectrum has been modelled by a semi-empirical approximation combining the leading term of Bethe's asymptotic cross section with an appropriate binary collision formula. The elastic scattering cross section was modelled by a modified Rutherford formula that accounts for screening, while impact excitation was modelled by an empirical formula which exhibits the correct (Born-Bethe) asymptotic behaviour. Binding effects for the most important molecular transitions are explicitly accounted for by partial inelastic cross sections. By following the histories of all particles, the code scores the spatial coordinates of all elastic and inelastic collision events, as well as the partitioning of energy loss to the various inelastic channels.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	JOURNAL OF PHYSICS D-APPLIED PHYSICS	en
dc.identifier.isi	ISI:000087004400011	en
dc.identifier.volume	33	en
dc.identifier.issue	8	en
dc.identifier.spage	932	en
dc.identifier.epage	944	en