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Temperature control of ion guiding through tapered capillaries

文献类型：期刊论文

作者Gruber, Elisabeth1; Stolterfoht, Nikolaus2; Allinger, Peter1; Wampl, Stefan1; Wang, Yuyu1; Simon, Marius J.3,4; Aumayr, Friedrich1
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
出版日期2014-12-01
卷号340页码:1-4
关键词Capillary Guiding Charged Particle Transport Tapered Capillaries Highly Charged Ions
ISSN号0168-583X
DOI10.1016/j.nimb.2014.06.023
文献子类Article
英文摘要We investigate the guiding of Ar7+ ions (kinetic energy of 4.5 key) through a single macroscopic tapered glass capillary of conical shape as a function of capillary tilt angle with respect to the incident ion beam direction. At room temperature a minimum in the transmitted ion intensity appears around the forward direction, which was previously observed and interpreted by a blocking of the transmission by repulsive Coulomb forces due to a uniformly charged ring shaped region in the centre part of the capillary. By heating the tapered capillary to temperatures around 100 degrees C and thus drastically increasing the electrical conductivity of the capillary material we no longer observe a minimum in the transmission curve but the transmission curve now has its maximum in forward direction. Since the maximum transmission at high temperature in forward direction is still smaller than the minimum in transmitted intensity at room temperature, we conclude that even at room temperature and in forward direction the focusing effect due to guiding is dominant and only partially weakened by blocking. Our experimental results are well reproduced in simulations using a theoretical model originally developed for straight nano-capillaries. (C) 2014 Elsevier B.V. All rights reserved.
WOS关键词HIGHLY-CHARGED IONS ; GLASS-CAPILLARY ; AR9+ IONS
语种英语
WOS记录号WOS:000347132400002
出版者ELSEVIER SCIENCE BV
源URL[http://119.78.100.186/handle/113462/49375]  
专题中国科学院近代物理研究所
通讯作者Gruber, Elisabeth
作者单位1.Vienna Univ Technol, TU Wien, Inst Appl Phys, A-1040 Vienna, Austria
2.Helmholtz Zentrum Berlin Mat & Energie, D-14109 Berlin, Germany
3.Chinese Acad Sci, Inst Modem Phys, Lanzhou 730000, Gansu, Peoples R China
4.ETH, Labor Ionenstrahlphys, CH-8093 Zurich, Switzerland
推荐引用方式
GB/T 7714		 Gruber, Elisabeth,Stolterfoht, Nikolaus,Allinger, Peter,et al. Temperature control of ion guiding through tapered capillaries[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2014,340:1-4.
APA Gruber, Elisabeth.,Stolterfoht, Nikolaus.,Allinger, Peter.,Wampl, Stefan.,Wang, Yuyu.,...&Aumayr, Friedrich.(2014).Temperature control of ion guiding through tapered capillaries.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,340,1-4.
MLA Gruber, Elisabeth,et al."Temperature control of ion guiding through tapered capillaries".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 340(2014):1-4.

入库方式： OAI收割

来源：近代物理研究所

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