Relativistic electron beam dynamics in high power gyrotron devices

Author

Jaynes, R.L. ; Gilgenbach, Ronald M. ; Hochman, J.M. ; Rintamaki, J.I. ; Lau, Y.Y. ; Spencer, T.A.

Author_Institution

Lab. Intense Energy Beam Interaction, Michigan Univ., Ann Arbor, MI, USA

fYear

1996

fDate

3-5 June 1996

Firstpage

284

Abstract

Summary form only given. Relativistic electron beam dynamics in gyrotron devices is currently under investigation. Numerical comparisons to previous analytic solutions to relativistic electron dynamics in a cusped magnetic field are presented; the equations of motion of relativistic electrons in spatially varying magnetic fields are derived for numerical analysis. Single particle motion through a magnetic cusp is compared numerically and analytically. Coherent off centering of annular beams going through a cusp is observed. The numerical analysis is carried further to obtain estimates for relativistic electron beam alpha (Vperp/Vparallel) and radius measurements. The numerical results for a small orbit gyrotron in a spatially varying magnetic field are compared with measurements using the MELBA machine at parameters: 0.75 MV, 1-10 kA, and /spl tau/=0.5-1.0 /spl mu/s.

Keywords

gyrotrons; 0.5 to 1 mus; 0.76 MV; 1 to 10 kA; MELBA machine; alpha measurements; annular beams; cusped magnetic field; equations of motion; high power gyrotron devices; numerical analysis; radius measurements; relativistic electron beam dynamics; relativistic electrons; single particle motion; small orbit gyrotron; spatially varying magnetic field; spatially varying magnetic fields; Electron beams; Extraterrestrial measurements; Force measurement; Gyrotrons; Magnetic analysis; Magnetic field measurement; Magnetic fields; Motion analysis; Numerical analysis; Particle beams;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1996. IEEE Conference Record - Abstracts., 1996 IEEE International Conference on

Conference_Location

Boston, MA, USA

ISSN

0730-9244

Print_ISBN

0-7803-3322-5

Type

conf

DOI

10.1109/PLASMA.1996.551633

Filename

551633