The influence of the charged back side on the transmission of highly charged ions through PC nanocapillaries

D. H. Li; Y. Y. Wang; Y. T. Zhao; G. Q. Xiao; D. Zhao; Z. F. Xu; F. L. Li

doi:10.1016/j.nimb.2008.11.041

The influence of the charged back side on the transmission of highly charged ions through PC nanocapillaries

D. H. Li
, Y. Y. Wang
, Y. T. Zhao
, G. Q. Xiao
, D. Zhao
, Z. F. Xu
, F. L. Li

School of Physics

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

We have measured the fraction of the ions transmitted through nanocapillaries with their initial charge state for 200 keV Xe⁷⁺ ions impact on a polycarbonate (PC) foil with a thickness of 30 μm and a diameter of 150 nm. An Au film was evaporated on both the front and back side. It is found that more than 97% of the transmitted ions remain in their initial charge state. Then, the transmitted ion fraction and the characteristic tilt angle of 40 keV Xe⁷⁺ ions through this foil and another one with the same thickness and diameter, but evaporated by Au only on the front side, were measured. By comparing the results of these two foils, the influence of the ions deposited in the capillary exit region on the transmitted ion fraction and the characteristic tilt angle is studied. In comparison with the foil evaporated by Au on both sides, the maximum transmitted ion fraction of the foil evaporated by Au on the front side only is nearly 4 times smaller. Also, the characteristic tilt angle is slightly decreased. These results are discussed within the models for the guiding effect.

Original language	English
Pages (from-to)	469-473
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	267
Issue number	3
DOIs	https://doi.org/10.1016/j.nimb.2008.11.041
State	Published - Feb 2009

Keywords

Characteristic tilt angle
Charged back side
Highly charged ions
Nanocapillaries
Polycarbonate
Transmitted ion fraction

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10.1016/j.nimb.2008.11.041

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title = "The influence of the charged back side on the transmission of highly charged ions through PC nanocapillaries",

abstract = "We have measured the fraction of the ions transmitted through nanocapillaries with their initial charge state for 200 keV Xe7+ ions impact on a polycarbonate (PC) foil with a thickness of 30 μm and a diameter of 150 nm. An Au film was evaporated on both the front and back side. It is found that more than 97\% of the transmitted ions remain in their initial charge state. Then, the transmitted ion fraction and the characteristic tilt angle of 40 keV Xe7+ ions through this foil and another one with the same thickness and diameter, but evaporated by Au only on the front side, were measured. By comparing the results of these two foils, the influence of the ions deposited in the capillary exit region on the transmitted ion fraction and the characteristic tilt angle is studied. In comparison with the foil evaporated by Au on both sides, the maximum transmitted ion fraction of the foil evaporated by Au on the front side only is nearly 4 times smaller. Also, the characteristic tilt angle is slightly decreased. These results are discussed within the models for the guiding effect.",

keywords = "Characteristic tilt angle, Charged back side, Highly charged ions, Nanocapillaries, Polycarbonate, Transmitted ion fraction",

author = "Li, \{D. H.\} and Wang, \{Y. Y.\} and Zhao, \{Y. T.\} and Xiao, \{G. Q.\} and D. Zhao and Xu, \{Z. F.\} and Li, \{F. L.\}",

year = "2009",

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doi = "10.1016/j.nimb.2008.11.041",

language = "英语",

volume = "267",

pages = "469--473",

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The influence of the charged back side on the transmission of highly charged ions through PC nanocapillaries. / Li, D. H.; Wang, Y. Y.; Zhao, Y. T. et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 267, No. 3, 02.2009, p. 469-473.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - The influence of the charged back side on the transmission of highly charged ions through PC nanocapillaries

AU - Li, D. H.

AU - Wang, Y. Y.

AU - Zhao, Y. T.

AU - Xiao, G. Q.

AU - Zhao, D.

AU - Xu, Z. F.

AU - Li, F. L.

PY - 2009/2

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N2 - We have measured the fraction of the ions transmitted through nanocapillaries with their initial charge state for 200 keV Xe7+ ions impact on a polycarbonate (PC) foil with a thickness of 30 μm and a diameter of 150 nm. An Au film was evaporated on both the front and back side. It is found that more than 97% of the transmitted ions remain in their initial charge state. Then, the transmitted ion fraction and the characteristic tilt angle of 40 keV Xe7+ ions through this foil and another one with the same thickness and diameter, but evaporated by Au only on the front side, were measured. By comparing the results of these two foils, the influence of the ions deposited in the capillary exit region on the transmitted ion fraction and the characteristic tilt angle is studied. In comparison with the foil evaporated by Au on both sides, the maximum transmitted ion fraction of the foil evaporated by Au on the front side only is nearly 4 times smaller. Also, the characteristic tilt angle is slightly decreased. These results are discussed within the models for the guiding effect.

AB - We have measured the fraction of the ions transmitted through nanocapillaries with their initial charge state for 200 keV Xe7+ ions impact on a polycarbonate (PC) foil with a thickness of 30 μm and a diameter of 150 nm. An Au film was evaporated on both the front and back side. It is found that more than 97% of the transmitted ions remain in their initial charge state. Then, the transmitted ion fraction and the characteristic tilt angle of 40 keV Xe7+ ions through this foil and another one with the same thickness and diameter, but evaporated by Au only on the front side, were measured. By comparing the results of these two foils, the influence of the ions deposited in the capillary exit region on the transmitted ion fraction and the characteristic tilt angle is studied. In comparison with the foil evaporated by Au on both sides, the maximum transmitted ion fraction of the foil evaporated by Au on the front side only is nearly 4 times smaller. Also, the characteristic tilt angle is slightly decreased. These results are discussed within the models for the guiding effect.

KW - Characteristic tilt angle

KW - Charged back side

KW - Highly charged ions

KW - Nanocapillaries

KW - Polycarbonate

KW - Transmitted ion fraction

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DO - 10.1016/j.nimb.2008.11.041

M3 - 文章

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SN - 0168-583X

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

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

IS - 3

ER -

The influence of the charged back side on the transmission of highly charged ions through PC nanocapillaries

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