Title :
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
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;
Conference_Titel :
Plasma Science, 1996. IEEE Conference Record - Abstracts., 1996 IEEE International Conference on
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-3322-5
DOI :
10.1109/PLASMA.1996.551633
