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Transmission of highly charged ions through mica nanocapillaries of rhombic cross section
Physics Department, Stockholm University, Sweden.
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2012 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 86, no 2, 022901- p.Article in journal (Refereed) Published
Abstract [en]

The angular distributions of Ne7 + ions transmitted at various kinetic energies of 7-70 keV through muscovite mica nanocapillaries of rhombic cross section are measured. It is found that the transmitted ion beams form a rectangular shape at tilt angles that are small compared to those given by the aspect ratio, i.e., the capillary geometrical opening angle. This shape is retained for all ion energies, but its size changes. The time evolution of the transmitted angular distributions shows that the characteristic profile occurs instantaneously and remains in the stationary state of the transmission, whereas it shifts with the increase of the accumulated incident charge. At tilt angles of the capillaries larger than their aspect ratio, the shape in the transmission profile gets distorted from the rectangle by the deposited charge. Combined with trajectory simulations we show the observed shaping effect is due to the image force seen by the ions, interplaying with a deflection by the deposited charge on the capillary walls.

Place, publisher, year, edition, pages
2012. Vol. 86, no 2, 022901- p.
Keyword [en]
Capillary wall, Cross section, Highly charged ions, Image force, Ion energies, Muscovite mica, Nanocapillaries, Opening angle, Rectangular shapes, Stationary state, Tilt angle, Time evolutions, Trajectory simulation, Transmission profiles, Angular distribution, Aspect ratio, Ions, Mica
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-131181DOI: 10.1103/PhysRevA.86.022901ISI: 000307382200004Scopus ID: 2-s2.0-84864877957OAI: oai:DiVA.org:kth-131181DiVA: diva2:654736
Funder
Knut and Alice Wallenberg FoundationSwedish Research Council
Note

QC 20131008

Available from: 2013-10-08 Created: 2013-10-08 Last updated: 2017-12-06Bibliographically approved

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Soroka, Inna L.
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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