Laser plasma in a magnetic field

Kondo, K.; Kanesue, T.; Tamura, J.; Dabrowski, R.; Okamura, M.
February 2010
Review of Scientific Instruments;Feb2010, Vol. 81 Issue 2, p02B716
Academic Journal
Laser ion source (LIS) is a candidate among various heavy ion sources. A high density plasma produced by Nd:yttrium aluminum garnet laser with drift velocity realizes high current and high charge state ion beams. In order to obtain higher beam current, we made experiments using the LIS with a magnetic field by which a confinement effect can make higher beam current. We measured total current by Faraday cup and analyzed charge distribution by electrostatic ion analyzer. It is shown that the ion beam charge state is higher by a permanent magnet.


Related Articles

  • Calculation and Optimization of Plasma-Optic Focusing Devices. Butenko, V. I.; Ivanov, B. I. // Plasma Physics Reports;Jun2001, Vol. 27 Issue 6, p511 

    (i) The focusing of an ion beam by a Morozov lens formed by a current ring in a plasma is calculated using an exact expression for the magnetic field and taking into account the nonparaxial character of the focused beam. The possible ways of optimizing such a lens are considered. (ii) Different...

  • Plasmoid propagation in a transverse magnetic field and in a magnetized plasma. Wessel, F. J.; Hong, R.; Song, J.; Fisher, A.; Rostoker, N.; Ron, A.; Li, R.; Fan, R. Y. // Physics of Fluids (00319171);Dec88, Vol. 31 Issue 12, p3778 

    The propagation of plasmoids (neutralized ion beams) in a vacuum transverse magnetic field has been studied in the University of California, Irvine laboratory for several years [Phys. Fluids 24, 739 (1981); 25, 730, 2353 (1982); 26, 2276 (1983); J. Appl. Phys. 64, 73 (1988)]. These experiments...

  • Generation of highly collimated high-current ion beams by skin-layer laser-plasma interaction at relativistic laser intensities. Badziak, J.; Jabłoński, S.; Głowacz, S. // Applied Physics Letters;8/7/2006, Vol. 89 Issue 6, p061504 

    Generation of fast ion beams by laser-induced skin-layer ponderomotive acceleration has been studied using a two-dimensional (2D) two-fluid relativistic computer code. It is shown that the key parameter determining the spatial structure and angular divergence of the ion beam is the ratio dL/Ln,...

  • Propagation of intense ion beams across a plasma-filled magnetic cusp. Busby, K. O.; Greenly, J. B.; Hammer, D. A.; Nakagawa, Y.; Pedrow, P. D. // Journal of Applied Physics;12/15/1986, Vol. 60 Issue 12, p4095 

    Presents a study which compared preionized plasma, with vacuum, and with neutral gas as a medium for the propagation of intense ion beams across magnetic fields. Experimental details; Theoretical considerations; Conclusion.

  • Spectroscopic ion beam imaging for investigations into magnetic field mapping of a plasma. Demers, D. R.; Schoch, P. M.; Radke, R. J.; Anderson, J. K.; Craig, D.; Hartog, D. J. Den // Review of Scientific Instruments;Mar2003, Vol. 74 Issue 3, p2103 

    The trajectory of an ion beam as it passes through a magnetically confined plasma is determined by the ion mass, energy, and charge state, and the magnetic field structure. In undergraduate physics laboratories, students use a measure of beam deflection in a well-defined magnetic field to...

  • Investigation of global Alfvén instabilities in the Tokamak Fusion Test Reactor. Wong, K. L.; Durst, R.; Fonck, R. J.; Paul, S. F.; Roberts, D. R.; Fredrickson, E. D.; Nazikian, R.; Park, H. K.; Bell, M.; Bretz, N. L.; Budny, R.; Cheng, C. Z.; Cohen, S.; Hammett, G. W.; Jobes, F. C.; Johnson, L.; Meade, D. M.; Medley, S. S.; Mueller, D. // Physics of Fluids B: Plasma Physics;Jul92, Vol. 4 Issue 7, p2122 

    Toroidal Alfvén eigenmodes (TAE) were excited by the energetic neutral beam ions tangentially injected into plasmas at low magnetic field in the Tokamak Fusion Test Reactor (TFTR) [Proceedings of the 11th International Conference on Plasma Physics and Controlled Fusion Research (IAEA, Vienna,...

  • Ion beam acceleration in a divergent magnetic field. Biloiu, Ioana A.; Scime, Earl E.; Biloiu, Costel // Applied Physics Letters;5/12/2008, Vol. 92 Issue 19, p191906 

    Two-dimensional argon ion velocity distribution functions (IVDFs) in the expansion region of a helicon plasma source have been measured by laser-induced-fluorescence tomography. Below a threshold value of the magnetic field in the expansion region, the IVDFs show a bimodal structure comprised of...

  • Excitation of Alfvén eigenmodes by low energy beam ions in the DIII-D and JET tokamaks. Nazikian, R.; Gorelenkov, N. N.; Alper, B.; Berk, H. L.; Borba, D.; Budny, R. V.; Fu, G. Y.; Heidbrink, W. W.; Kramer, G. J.; Makowski, M. A.; Pinches, S. D.; Sharapov, S. E.; Solomon, W. M.; Strait, E. J.; White, R. B.; Van Zeeland, M. A. // Physics of Plasmas;May2008, Vol. 15 Issue 5, p056107 

    Core localized Alfvén eigenmodes in DIII-D [J. L. Luxon, Nucl. Fusion 42, 614 (2002)] and Joint European Torus (JET) [P. H. Rebut and B. E. Keen, Fusion Technol. 11, 13 (1987)] plasmas are driven by deuterium neutral beam ions traveling well below the Alfvén speed. Modes are observed in...

  • Spatial retarding field energy analyzer measurements downstream of a helicon double layer plasma. Cox, W.; Charles, C.; Boswell, R. W.; Hawkins, R. // Applied Physics Letters;8/18/2008, Vol. 93 Issue 7, p071505 

    Spatial ion energy measurements using a retarding field energy analyzer are performed in the exhaust of a 0.30 mTorr, 250 W helicon double layer plasma to investigate the divergence of the argon ion beam formed by acceleration in the double layer. Various divergence angles are computed by...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics