Title :
HV injection phase orbit characteristics for sub-picosecond bunch operation with a high gradient 17 GHz linac
Author :
Haimson, J. ; Mecklenburg, B.
Author_Institution :
Haimson Res. Corp., Santa Clara, CA, USA
Abstract :
The results of phase orbit computations are presented showing typical cutoff and acceptance characteristics for high voltage electrons injected into a 60 MV/m, 17 GHz traveling wave (TW) disc loaded structure. The RF fringing fields at beam entry to the TW structure and the presence of a standing wave domain at the input cavity have a dominating influence on the capture and bunching process and on the asymptotic bunch location of the accelerated beam. The effects of beam loading and of different injection energies and input RF power levels are investigated; and injection operating parameters with RF chopped and prebunched beams to ensure high resolution, sub-picosecond bunch performance with the 17 GHz linac, are presented
Keywords :
accelerator RF systems; beam handling techniques; electron accelerators; particle beam injection; 17 GHz; HV injection phase orbit; RF chopped beams; RF fringing fields; TW structure; acceptance characteristics; asymptotic bunch location; beam loading; bunching; capture; cutoff characteristics; high gradient 17 GHz linac; high resolution sub-picosecond bunch performance; high voltage electron injection; input RF power levels; input cavity; prebunched beams; standing wave domain; sub-picosecond bunch operation; traveling wave disc loaded structure; Acceleration; Electron accelerators; Impedance; Linear particle accelerator; Optical coupling; Particle beams; Radio frequency; Space exploration; Structural discs; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.504781
