Long-term stable transmission of 3-keV Ne7+ ions guided through nanocapillaries in polymers

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:387

Article

Stolterfoht, N.¹  Herczku, P.²  Juhasz, Z.²  Kovacs, S. T. S.²  Racz, R.²  Biri, S.²  Sulik, B.² 

[1] Helmholtz Zentrum Berlin Mat & Energie, D-14109 Berlin, Germany

[2] Inst Nucl Res ATOMKI, H-4001 Debrecen, Hungary

关键词: Capillary guiding;    Ion transmission;    Nanocapillaries;    Highly charged;    Areal density;   

DOI  :  10.1016/j.nimb.2016.10.010

来源: Elsevier

【 摘 要 】

We studied blocking effects on 3-key Ne7+ ion guiding through nanocapillaries in highly insulating polyethylene terephthalate (PET) manufactured at different laboratories. The experiments were motivated in view of previous measurement with PET capillaries prepared at the GSI Helmholtz-Zentrum for which significant blocking effects were observed, whereas in various previous studies with PET capillaries these effects could not be detected. As the blocking effect on the GSI capillaries strongly depends on their areal density, similar dependencies were studied with the FLNR capillaries. Long-term stable transmission was observed for all densities of the FLNR capillaries in contrast to the previous results. These observations are interpreted by differences in the capillary surface conductivities in accordance with charge patch formations within the capillaries. It is pointed out that the observed stable transmission is favorable for applications of ion guiding in capillaries. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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