Formation of ion clusters by low-energy electrons in nanometric targets: experiment and Monte Carlo simulation.
The first experimental data on the distribution of ionisation cluster size produced by low energy electrons in a target cylinder of nitrogen, 3.5 nm in diameter at unit density, which is equivalent to approximately 2 nm in liquid water are presented. In the experiment, nanometric targets were simulated in the so-called Jet Counter. It consists of a pulse-operated valve which injects an expanding jet of nitrogen into an interaction chamber where a cylindrical sensitive volume is created. This sensitive volume was irradiated by electrons at 300 eV, 500 eV and 1 keV, emitted by an electron gun. The distribution of ionisation cluster size was measured using the single-ion-counting method and compared with the results of Monte Carlo simulation.
Bantsar
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A
Soltan Institute for Nuclear Studies, 05-400 Otwock-Swierk, Poland.
Grosswendt
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B
Pszona
S
S
D016000:Cluster Analysis; D003198:Computer Simulation; D004247:DNA / Q000737:chemistry* / Q000528:radiation effects*; D004249:DNA Damage; D004583:Electrons; D008956:Models, Chemical; D009010:Monte Carlo Method; D049329:Nanostructures / Q000737:chemistry*; D011829:Radiation Dosage; D011839:Radiation, Ionizing; D011874:Radiometry / Q000379:methods*; D012542:Scattering, Radiation
D004247:DNA