Role of conductivity for the production of charge patches by ions guided in capillaries

N. Stolterfoht, P. Herczku, Z. Juhász, S. T.S. Kovács, R. Rácz, S. Biri, B. Sulik

Research output: Contribution to journalArticle

Abstract

Guiding of 3-keV Ne7+ ion through nanocapillaries in highly insulating polymers was studied. By means of simulations it is made evident that oscillations of the ion emission angle after transmission through capillaries reveals charge patches within the capillaries. The creation and removal of the charge patches depend on the conductivity of the capillaries so that a relationship of the conductivity and the oscillatory structure of the mean ion emission angle can be established. Experimentally significant differences were found in the ion fractions transmitted through capillaries prepared in polycarbonate (PC) and polyethylene terephthalate (PET). For PC the ion fraction decreases with inserted charge indicating blocking effects on the transmitted ions whereas for PET the ion transmission was found to be almost constant even for long term irradiation. The observed differences were attributed to different conductivities of the capillaries in the polymer materials. This attribution was supported by additional measurements concerning the oscillatory structures of the ion emission angles.

Original languageEnglish
Pages (from-to)56-60
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume408
DOIs
Publication statusPublished - Oct 1 2017

Fingerprint

ion emission
conductivity
Ions
polyethylene terephthalate
polycarbonates
ions
Polycarbonates
Polyethylene terephthalates
polymers
Polymers
oscillations
irradiation
Irradiation
simulation

Keywords

  • Guiding
  • Highly charged
  • Ion transmission
  • Nanocapillaries
  • Polymers

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

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title = "Role of conductivity for the production of charge patches by ions guided in capillaries",
abstract = "Guiding of 3-keV Ne7+ ion through nanocapillaries in highly insulating polymers was studied. By means of simulations it is made evident that oscillations of the ion emission angle after transmission through capillaries reveals charge patches within the capillaries. The creation and removal of the charge patches depend on the conductivity of the capillaries so that a relationship of the conductivity and the oscillatory structure of the mean ion emission angle can be established. Experimentally significant differences were found in the ion fractions transmitted through capillaries prepared in polycarbonate (PC) and polyethylene terephthalate (PET). For PC the ion fraction decreases with inserted charge indicating blocking effects on the transmitted ions whereas for PET the ion transmission was found to be almost constant even for long term irradiation. The observed differences were attributed to different conductivities of the capillaries in the polymer materials. This attribution was supported by additional measurements concerning the oscillatory structures of the ion emission angles.",
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TY - JOUR

T1 - Role of conductivity for the production of charge patches by ions guided in capillaries

AU - Stolterfoht, N.

AU - Herczku, P.

AU - Juhász, Z.

AU - Kovács, S. T.S.

AU - Rácz, R.

AU - Biri, S.

AU - Sulik, B.

PY - 2017/10/1

Y1 - 2017/10/1

N2 - Guiding of 3-keV Ne7+ ion through nanocapillaries in highly insulating polymers was studied. By means of simulations it is made evident that oscillations of the ion emission angle after transmission through capillaries reveals charge patches within the capillaries. The creation and removal of the charge patches depend on the conductivity of the capillaries so that a relationship of the conductivity and the oscillatory structure of the mean ion emission angle can be established. Experimentally significant differences were found in the ion fractions transmitted through capillaries prepared in polycarbonate (PC) and polyethylene terephthalate (PET). For PC the ion fraction decreases with inserted charge indicating blocking effects on the transmitted ions whereas for PET the ion transmission was found to be almost constant even for long term irradiation. The observed differences were attributed to different conductivities of the capillaries in the polymer materials. This attribution was supported by additional measurements concerning the oscillatory structures of the ion emission angles.

AB - Guiding of 3-keV Ne7+ ion through nanocapillaries in highly insulating polymers was studied. By means of simulations it is made evident that oscillations of the ion emission angle after transmission through capillaries reveals charge patches within the capillaries. The creation and removal of the charge patches depend on the conductivity of the capillaries so that a relationship of the conductivity and the oscillatory structure of the mean ion emission angle can be established. Experimentally significant differences were found in the ion fractions transmitted through capillaries prepared in polycarbonate (PC) and polyethylene terephthalate (PET). For PC the ion fraction decreases with inserted charge indicating blocking effects on the transmitted ions whereas for PET the ion transmission was found to be almost constant even for long term irradiation. The observed differences were attributed to different conductivities of the capillaries in the polymer materials. This attribution was supported by additional measurements concerning the oscillatory structures of the ion emission angles.

KW - Guiding

KW - Highly charged

KW - Ion transmission

KW - Nanocapillaries

KW - Polymers

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

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