Stabilized Hollow Ions Extracted in Vacuum

Ninomiya, S.; Yamazaki, Y.; Koike, Fumihiro; Masuda, Hideki; Azuma, T.; Komaki, K.; Kuroki, Kenro; Sekiguchi, Masayuki

doi:10.1103/physrevlett.78.4557

Cited by 139 publications

(49 citation statements)

References 27 publications

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“…[3][4][5][6][7] Particularly in the case of metal-plated insulator foils, 2,8 a so-called guiding effect was observed, where slow HCIs were deflected along the capillary axis keeping their initial charge states even when the capillary is tilted against the incident HCI beam.…”

mentioning

confidence: 99%

Production of a microbeam of slow highly charged ions with a tapered glass capillary

Ikeda

Kanai

Kojima

et al. 2006

Applied Physics Letters

174

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The authors have developed a method to produce a microbeam of slow highly charged ions based on a self-organized charge-up inside a tapered glass capillary. A transmission of 8 keV Ar 8+ beam through the capillary 5 cm long with 800/ 24 m inlet/outlet inner diameters was observed stably for more than 1200 s. The transmitted beam had the same size as the outlet with a beam density enhancement of approximately 10 and a divergence of ±5 mrad. The initial beam was guided through a capillary tilted by as large as ±100 mrad, and it still kept the incident charge.

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mentioning

confidence: 99%

Production of a microbeam of slow highly charged ions with a tapered glass capillary

Ikeda

Kanai

Kojima

et al. 2006

Applied Physics Letters

174

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“…The original motivation was to delineate the initial state of hollow-atom formation at large distances from the surface [1,2,3] information hardly accessible by scattering at flat surfaces. Image attraction and close collisions tend to erase the memory on this early state of ion-surface interaction when the ion suffers close encounter as it is either reflected from the topmost layer of the surface or penetrates into the bulk.…”

Section: Introductionmentioning

confidence: 99%

Simulation of guiding of highly charged projectiles through insulating nanocapillaries

Schiessl¹,

Palfinger²,

Lemell³

et al. 2005

Nuclear Instruments and Methods in Physics Research Section B:

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Recent experiments have demonstrated that highly charged ions can be guided through insulating nanocapillaries along the direction of the capillary axis for a surprisingly wide range of injection angles. Even more surprisingly, the transmitted particles remain predominantly in their initial charge state, thus opening the pathway to the construction of novel ion-optical elements without electric feedthroughs. We present a theoretical treatment of this self-organized guiding process.We develop a classical trajectory transport theory that relates the microscopic charge-up with macroscopic material properties. Transmission coefficients, angular spread of transmitted particles, and discharge characteristics of the target are investigated. Partial agreement with experiment is found.

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“…Similar estimates can be derived for insulators [3]. Direct test became available with the help of novel targets, metallic nanocapillaries, pioneered by the group of Yamazaki et al [30]. Interaction with the internal walls of capillaries allows to select trajectories that avoid a close encounter with the surface (trajectories of type 3 ( Fig.…”

Section: A Classical Over Barrier Modelmentioning

confidence: 78%