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Simulations and experiments with space-charge-dominated beams

Phys. Plasmas 10, 2016 (2003); doi:10.1063/1.1558291

Issue Date: May 2003

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R. A. Kishek, S. Bernal, C. L. Bohn, D. Grote, I. Haber, H. Li, P. G. O'Shea, M. Reiser, and M. Walter
Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742-3511
Beams in which space charge forces are stronger than the force from thermal pressure are nonneutral plasmas, since particles interact mostly via the long-range collective potential. An ever-increasing number of applications demand such high-brightness beams. The University of Maryland Electron Ring [P. G. O'Shea et al., Nucl. Instrum Methods Phys. Res. A 464, 646 (2001)], currently under construction, is designed for studying the physics of space-charge-dominated beams. Indirect ways of measuring beam emittance near the UMER source produced conflicting results, which were resolved only when a direct measurement of phase space indicated a hollow velocity distribution. Comparison to self-consistent simulation using the particle-in-cell code WARP [D. P. Grote et al., Fusion Eng. Design 32-33, 193 (1996)] revealed sensitivity to the initial velocity distribution. Since the beam is born with nonuniformities and granularity, dissipation mechanisms and rates are of interest. Simulations found that phase mixing by means of chaotic particle orbits is possible in certain situations, and proceeds much faster than Landau damping. The implications for using beams to model other N-body systems are discussed. ©2003 American Institute of Physics.
History: Received 18 November 2002; accepted 10 January 2003
Permalink: http://link.aip.org/link/?PHPAEN/10/2016/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.40.Mj
    Particle beam interactions in plasmas
  • 52.27.Jt
    Nonneutral plasmas
  • 52.65.Cc
    Particle orbit and trajectory (plasma simulation)
  • 52.20.Dq
    Particle orbits in plasma
  • YEAR: 2003

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ISSN:
1070-664X (print)   1089-7674 (online)
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REFERENCES (20)
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  1. M. Reiser, Theory and Design of Charged Particle Beams (Wiley, New York, 1994).
  2. T. P. Wangler, K. R. Crandall, R. Ryne, and T. S. Wang, Phys. Rev. ST Accel. Beams 1, 084201 (1998).
  3. S. M. Lund and R. C. Davidson, Phys. Plasmas 5, 3028 (1998).
  4. P. G. O'Shea, M. Reiser, R. A. Kishek et al., Nucl. Instrum. Methods Phys. Res. A 464, 646 (2001); "Experiments with space charge dominated beams for heavy ion fusion applications," Laser Part. Beams (in press).
  5. R. C. Davidson and H. Qin, Physics of Intense Charged Particle Beams in High Energy Accelerators (World Scientific, Singapore, 2001).
  6. D. P. Grote, A. Friedman, S. M. Lund, and I. Haber, Fusion Eng. Des. 32-33, 193 (1996).
  7. Y. Zou, Y. Cui, V. Yun, A. Valfells, R. A. Kishek, S. Bernal, I. Haber, M. Reiser, P. G. O'Shea, and J. G. Wang, Phys. Rev. ST Accel. Beams 5, 072801 (2002);
    8. Y. P. Cui, S. Bernal, R. A. Kishek et al., "Design studies for an experiment to measure energy spread evolution through a solenoidal focusing system," in Proceedings of the 2001 Particle Accelerator Conference, Chicago, IL, 2001, edited by P. Lucas and S. Weber (IEEE, Piscataway, NJ, 2001), I4 Cat. No. 01CH37268, p. 2976.
  8. D. Kehne, T. Godlove, P. Haldemann et al., Nucl. Instrum. Methods Phys. Res. A 464, 605 (2001).
  9. We can tell the pattern results from the anode grid rather than the cathode grid because the two grids are oriented at different angles.
  10. I. Haber, F. M. Bieniosek, C. M. Celata et al., "End-to-end simulation: The front end," Laser Part. Beams (in press).
  11. I. Haber, S. Bernal, C. M. Celata, A. Friedman, D. P. Grote, R. A. Kishek, B. Quinn, P. G. O'Shea, M. Reiser, and J.-L. Vay, "Collective space-charge phenomena in the source region," Nucl. Instrum. Methods Phys. Res. A (submitted).
  12. See EPAPS Document No. E-PHPAEN-10-924305 for color versions of Figs. 4 and 6 of this paper. A direct link to this document may be found in the online article's HTML reference section. The document may also be reached via the EPAPS homepage (http://www.aip.org/pubservs/epaps.html) or from ftp.aip.org in the directory /epaps/. See the EPAPS homepage for more information. [EPAPS]
  13. S. Bernal, B. Beaudoin, Y. Cui et al., "Intense beam transport experiments in a multibend system at the University of Maryland Electron Ring (UMER)," Nucl. Instrum. Methods Phys. Res. A (submitted).
  14. S. Bernal, R. A. Kishek, M. Reiser, and I. Haber, Phys. Rev. Lett. 82, 4002 (1999);
    15. S. Bernal, B. Quinn, P. G. O'Shea, and M. Reiser, Phys. Rev. ST Accel. Beams 5, 064202 (2002).
  15. R. A. Kishek, P. G. O'Shea, and M. Reiser, Phys. Rev. Lett. 85, 4514 (2000).
  16. B. E. Carlsten and D. T. Palmer, Nucl. Instrum. Methods Phys. Res. A 425, 37 (1999).
  17. H. Kandrup, I. Pogorelov, and I. Sideris, Mon. Not. R. Astron. Soc. 319, 43 (2000).
  18. R. A. Kishek, C. L. Bohn, I. Haber, P. G. O'Shea, M. Reiser, and H. Kandrup, in Proceedings of the 2001 Particle Accelerator Conference, Chicago, IL, 2001, edited by P. Lucas and S. Weber (IEEE, Piscataway, NJ, 2001), I4 Cat. No. 01CH37268, p. 151.
  19. C. L. Bohn, in The Physics of High Brightness Beams, edited by J. Rosenzweig and L. Serafini (World Scientific, Singapore, 2000), p. 358.
  20. T. Antonsen, Fan, E. Ott, and Garcia-Lopez, Phys. Fluids 8, 3094 (1996).

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