Inelastic collision processes of low energy protons in liquid water

Date, H.; Sutherland, K.L.; Hayashi, T.; Matsuzaki, Y.; Kiyanagi, Y.

doi:10.1016/j.radphyschem.2005.10.002


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Inelastic collision processes of low energy protons in liquid water

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/7380

Title:	Inelastic collision processes of low energy protons in liquid water
Authors:	Date, H.¹ Browse this author →KAKEN DB
	Sutherland, K.L. Browse this author
	Hayashi, T. Browse this author
	Matsuzaki, Y. Browse this author
	Kiyanagi, Y. Browse this author →KAKEN DB
Authors(alt):	伊達, 広行¹
Keywords:	Proton Bragg peak
	Inelastic collision
	δ-ray
	Charge transfer
	Cross-sections
	Liquid water
Issue Date:	Feb-2006
Publisher:	Elsevier Ltd
Journal Title:	Radiation Physics and Chemistry
Volume:	75
Issue:	2
Start Page:	179
End Page:	187
Publisher DOI:	10.1016/j.radphyschem.2005.10.002
Abstract:	Production probabilities of ions and excited particle species along the proton beam track in liquid water are estimated around the Bragg peak region, taking into account charge-changing processes and energetic secondary electron (δ-ray) behavior. Ionization and excitation processes are divided into two categories in this study: primary processes associated with direct proton (or hydrogen) interaction and secondary processes arising from the electrons ejected by the primary process. We show that the number of events in the secondary processes producing ions and excited particles is larger than that of the primary processes around the Bragg peak while neutralized protons (i.e., hydrogen) with low energy have a large contribution to direct ionization. Effects of charge-changing processes on ionization and excitation are also discussed.
Relation:	http://www.sciencedirect.com/science/journal/0969806X
Type:	article (author version)
URI:	http://hdl.handle.net/2115/7380
Appears in Collections:	医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 伊達広行

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