Ponderomotive Enhancement of Charged Particle Beam Limiting Current

Celso Grebogi, Han S. Uhm

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The space-charge-limiting current problem is investigated for a magnetized particle beam propagating in a cylindrical drift tube and in the presence of a waveguide mode. It is shown that with a proper choice of a waveguide mode, the limiting current can be greatly enhanced due to ponderomotive effects. Physically, this is accomplished by using the ponderomotive energy to reduce the potential depression due to the beam's self-space-charge field. Formulas for the limiting current as a function of beam energy and waveguide RF field for solid and hollow beams are derived. It is found from these formulas that in appropriate parameter regimes, the space charge limiting current of, say, a 250-kV beam can be enhanced by 70%.

Original languageEnglish
Title of host publicationProceedings of the 1987 IEEE Particle Accelerator Conference: Accelerator Engineering and Technology
EditorsEric R. Lindstrom, Louise S. Taylor
PublisherIEEE Press
Pages1093-1095
Number of pages3
Publication statusPublished - 1987

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Particle beams
Charged particles
Electric space charge
Waveguides

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Grebogi, C., & Uhm, H. S. (1987). Ponderomotive Enhancement of Charged Particle Beam Limiting Current. In E. R. Lindstrom, & L. S. Taylor (Eds.), Proceedings of the 1987 IEEE Particle Accelerator Conference: Accelerator Engineering and Technology (pp. 1093-1095). IEEE Press.

Ponderomotive Enhancement of Charged Particle Beam Limiting Current. / Grebogi, Celso; Uhm, Han S.

Proceedings of the 1987 IEEE Particle Accelerator Conference: Accelerator Engineering and Technology. ed. / Eric R. Lindstrom; Louise S. Taylor. IEEE Press, 1987. p. 1093-1095.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Grebogi, C & Uhm, HS 1987, Ponderomotive Enhancement of Charged Particle Beam Limiting Current. in ER Lindstrom & LS Taylor (eds), Proceedings of the 1987 IEEE Particle Accelerator Conference: Accelerator Engineering and Technology. IEEE Press, pp. 1093-1095.
Grebogi C, Uhm HS. Ponderomotive Enhancement of Charged Particle Beam Limiting Current. In Lindstrom ER, Taylor LS, editors, Proceedings of the 1987 IEEE Particle Accelerator Conference: Accelerator Engineering and Technology. IEEE Press. 1987. p. 1093-1095
Grebogi, Celso ; Uhm, Han S. / Ponderomotive Enhancement of Charged Particle Beam Limiting Current. Proceedings of the 1987 IEEE Particle Accelerator Conference: Accelerator Engineering and Technology. editor / Eric R. Lindstrom ; Louise S. Taylor. IEEE Press, 1987. pp. 1093-1095
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