Title :
Numerical and experimental studies of particle acceleration powered by modulated intense relativistic electron beams
Author :
Krall, J. ; Friedman, M. ; Serlin, V. ; Lau, Y.Y.
Author_Institution :
Sci. Applications Int. Corp., McLean, VA, USA
Abstract :
A fully electromagnetic particle code is used to simulate the transfer of energy from an annular modulated intense relativistic electron beam to a secondary low-current electron beam via a disk-loaded structure. It is shown that the modulated intense beam can be used to drive such an accelerator at a high transformer ratio (R≃10) with an accelerating gradient in the ~100-MV/m range. Power in excess of 1 GW was transferred from the primary to the secondary beam. An experiment was performed in which such a beam (diameter 13 cm, peak power 8 GW) dumped RF power into a disk-loaded structure of 1-m length. This RF power was transferred from the structure to a secondary electron beam, resulting in acceleration of electrons to an energy much greater than 10 MeV with current of the order of 300 A
Keywords :
beam handling techniques; electron accelerators; electron beams; numerical analysis; physics computing; RF power; accelerating gradient; annular modulated; disk-loaded structure; electromagnetic particle code; high transformer ratio; modulated intense relativistic electron beams; numerical study; particle acceleration; secondary low-current electron beam; Acceleration; Electron beams; Frequency modulation; Intensity modulation; Linear particle accelerator; Optical coupling; Optical modulation; Particle accelerators; Particle beams; Radio frequency;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/PAC.1989.73197
