Showing 141 - 160 results of 3,860 for search '"ion beam"', query time: 0.19s Refine Results
  1. 141

    Conceptual design of heavy ion beam compression using a wedge by Jonathan C. Wong, B. Grant Logan, Simon S. Yu

    Published 2015-10-01
    “…Heavy ion beams are a useful tool for conducting high energy density physics (HEDP) experiments. …”
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  2. 142
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    Electron-cloud simulation and theory for high-current heavy-ion beams by R. H. Cohen, A. Friedman, S. M. Lund, A. W. Molvik, E. P. Lee, T. Azevedo, J.-L. Vay, P. Stoltz, S. Veitzer

    Published 2004-12-01
    “…We find that amplitude variations are most effective in spoiling ion beam quality, though for sinusoidal variations which match the natural ion beam centroid oscillation or breathing-mode frequencies, the centroid and shape perturbations can also have significant impact. …”
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  4. 144

    High-Quality Laser-Accelerated Ion Beams from Structured Targets by Martin Matys, Jan Psikal, Katsunobu Nishihara, Ondrej Klimo, Martin Jirka, Petr Valenta, Sergei V. Bulanov

    Published 2023-01-01
    “…The proper development of this instability leads to the generation of a collimated quasi-monoenergetic ion beam with lower emittance, divergence, and energy spread compared to a single and double-layer target with planar interface. …”
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  5. 145
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  9. 149

    Reactive ion beam etching – based finishing of optical aluminium surfaces by Ulitschka Melanie, Bauer Jens, Frost Frank, Arnold Thomas

    Published 2019-01-01
    “…Reactively driven low-energy ion beam machining is a widely used finishing technique for optical aluminium surfaces. …”
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  10. 150
  11. 151

    Collective instabilities and beam-plasma interactions in intense heavy ion beams by Ronald C. Davidson, Igor Kaganovich, Hong Qin, Edward A. Startsev, Dale R. Welch, David V. Rose, Han S. Uhm

    Published 2004-11-01
    “…This paper presents a survey of the present theoretical understanding of collective processes and beam-plasma interactions affecting intense heavy ion beam propagation in heavy ion fusion systems. In the acceleration and beam transport regions, the topics covered include discussion of the conditions for quiescent beam propagation over long distances; the electrostatic Harris-type instability and the transverse electromagnetic Weibel-type instability in strongly anisotropic, one-component non-neutral ion beams; and the dipole-mode, electron-ion two-stream instability driven by an (unwanted) component of background electrons. …”
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  12. 152
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  14. 154

    Artificial libration points in the task of towing space debris by an ion beam by Петухов, Вячеслав Георгиевич, Ryazanov, Vladimir Vladimirovich

    Published 2021-05-01
    “…The work is devoted to the problem of towing space debris from a geostationary orbit to a graveyard orbit by a non-contact method using an ion beam created by the engine of an active spacecraft. …”
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  15. 155

    Nanostructures of ITO Thin Films Induced by Low Energy Ion Beam by Wu Haifeng, Jiang Xiangdong, Zeng Yixiong, Wang Jimin

    Published 2016-01-01
    “…This paper presents a novel method that using low energy hydrogen ion beam at normal incidence to deal with indium tin oxide(ITO) thin films.The surface structure of ITO thin films are controlled by changing parameters of ion source(IS),such as ion energy,ion beam current,substrate temperature and processing time.In this paper,the ion energy is set at 300 eV, the ion beam current ranges from 60 mA to 100 mA,the substrates are heated to 120 °C and 150 °C,the processing time is from 5 min to 25 min.Setting the ion source parameter at 300 eV,120 °C and 60 mA,with the growing of time,the nanoparticles(NPs) on the surface of ITO layer appears,and the diameter of nanoparticles is reduced as the treating time is beyond 15 min.In addition to,transforming the ion beam current from 80 mA to 100 mA,other parameters,such as maintaining the ion energy at 300 eV, substrate temperature at 150 °C and conducting time at 15 min,it demonstrates that the nanoparticles size of ITO layer is more uniform and dense nanostructures at 100 mA ion beam current than at 80 mA ion beam current.It means that altering the ion beam current could affect the nanoparticles size distribution and,furthermore,control the surface nanostructure of ITO layer.…”
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  18. 158

    In situ cleaning of metal cathodes using a hydrogen ion beam by D. H. Dowell, F. K. King, R. E. Kirby, J. F. Schmerge, J. M. Smedley

    Published 2006-06-01
    “…In this paper we explore using a hydrogen ion (H-ion) beam to clean a copper cathode. We describe QE measurements over the wavelength range of interest as a function of integrated exposure to an H-ion beam. …”
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  19. 159

    An ion beam system for calibration of space low-energy ion detectors by Guifen Shi, Yiren Li, Bin Miao, Kai Liu, Xinjun Hao, Zonghao Pan, Meng Guan

    Published 2023-06-01
    “…And the ion source is the most critical equipment in a calibration facility. In this study, an ion beam system based on Kaufman ion source is designed, which can meet the ground calibration of space low-energy ion detection instrument in the low-energy range of 100–1,000 eV. …”
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  20. 160

    Deuterium retention and thermal conductivity in ion-beam displacement-damaged tungsten by G.R. Tynan, R.P. Doerner, J. Barton, R. Chen, S. Cui, M. Simmonds, Y. Wang, J.S. Weaver, N. Mara, S. Pathak

    Published 2017-08-01
    “…Retention of plasma-implanted D is studied in W targets damaged by a Cu ion beam at up to 0.2dpa with sample temperatures between 300K and 1200K. …”
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