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Title: Absence of a guiding effect and charge transfer in the interaction of keV-energy negative ions with Al{sub 2}O{sub 3} nanocapillaries

Abstract

In this work, the efficient electron loss process was observed for the transmission of 10- to 18-keV Cu{sup -} and Cl{sup -} ions through Al{sub 2}O{sub 3} nanocapillaries. The fractions of the scattered particles were simultaneously measured using a position-sensitive microchannel plate detector. The neutrals were guided through the capillary via multiple grazing scattering. In particular, the scattered Cl{sup -} ions were observed in the transmission, whereas no Cu{sup -} ion was formed. In contrast to highly charged ions, these results support strongly the fact that the scattering events dominate the transport of negative ions through the nanocapillaries and that there is no direct evidence for the formation of negative charge patches inside the capillaries which are able to repulse and guide negative ions efficiently.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. School of Nuclear Science and Technology, Lanzhou University, 730000 (China)
Publication Date:
OSTI Identifier:
22068718
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 74 ATOMIC AND MOLECULAR PHYSICS; ALUMINIUM OXIDES; ANIONS; CAPILLARIES; CHLORINE IONS; COPPER IONS; ELECTRON LOSS; INTERACTIONS; KEV RANGE 10-100; MICROCHANNEL ELECTRON MULTIPLIERS; PARTICLES; SCATTERING; SUPPORTS; TRANSMISSION

Citation Formats

Chen Lin, Guo Yanling, Jia Juanjuan, Zhang Hongqiang, Cui Ying, Shao Jianxiong, Yin Yongzhi, Qiu Xiyu, Lv Xueyang, Sun Guangzhi, Wang Jun, Chen Yifeng, Xi Fayuan, and Chen Ximeng. Absence of a guiding effect and charge transfer in the interaction of keV-energy negative ions with Al{sub 2}O{sub 3} nanocapillaries. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.032901.
Chen Lin, Guo Yanling, Jia Juanjuan, Zhang Hongqiang, Cui Ying, Shao Jianxiong, Yin Yongzhi, Qiu Xiyu, Lv Xueyang, Sun Guangzhi, Wang Jun, Chen Yifeng, Xi Fayuan, & Chen Ximeng. Absence of a guiding effect and charge transfer in the interaction of keV-energy negative ions with Al{sub 2}O{sub 3} nanocapillaries. United States. doi:10.1103/PHYSREVA.84.032901.
Chen Lin, Guo Yanling, Jia Juanjuan, Zhang Hongqiang, Cui Ying, Shao Jianxiong, Yin Yongzhi, Qiu Xiyu, Lv Xueyang, Sun Guangzhi, Wang Jun, Chen Yifeng, Xi Fayuan, and Chen Ximeng. Thu . "Absence of a guiding effect and charge transfer in the interaction of keV-energy negative ions with Al{sub 2}O{sub 3} nanocapillaries". United States. doi:10.1103/PHYSREVA.84.032901.
@article{osti_22068718,
title = {Absence of a guiding effect and charge transfer in the interaction of keV-energy negative ions with Al{sub 2}O{sub 3} nanocapillaries},
author = {Chen Lin and Guo Yanling and Jia Juanjuan and Zhang Hongqiang and Cui Ying and Shao Jianxiong and Yin Yongzhi and Qiu Xiyu and Lv Xueyang and Sun Guangzhi and Wang Jun and Chen Yifeng and Xi Fayuan and Chen Ximeng},
abstractNote = {In this work, the efficient electron loss process was observed for the transmission of 10- to 18-keV Cu{sup -} and Cl{sup -} ions through Al{sub 2}O{sub 3} nanocapillaries. The fractions of the scattered particles were simultaneously measured using a position-sensitive microchannel plate detector. The neutrals were guided through the capillary via multiple grazing scattering. In particular, the scattered Cl{sup -} ions were observed in the transmission, whereas no Cu{sup -} ion was formed. In contrast to highly charged ions, these results support strongly the fact that the scattering events dominate the transport of negative ions through the nanocapillaries and that there is no direct evidence for the formation of negative charge patches inside the capillaries which are able to repulse and guide negative ions efficiently.},
doi = {10.1103/PHYSREVA.84.032901},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}