Author :
Allen, M.A. ; Axuma, O. ; Callin, R.S. ; Deruyter, H. ; Eppley, K.R. ; Fant, K.S. ; Fowkes, W.R. ; Hermannsfeldt, W.B. ; Hoag, H.A. ; Koontz, R.F. ; Lavine, T.L. ; Lee, T.G. ; Loew, G.A. ; Miller, R.H. ; Palmer, R.B. ; Paterson, J.M. ; Ruth, R.D. ; Schwar
Author_Institution :
Stanford Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
Experimental work is underway to investigate the feasibility of using relativistic klystrons as a power source for future high-gradient accelerators. The aim is to develop a high-power (500-MW) short-wavelength (2.6-cm) relativistic klystron with beam kinetic energy greater than 1 MeV. Two different relativistic klystron configurations have been built and tested: a high-gain multicavity klystron at 11.4 GHz and a low-gain two-cavity subharmonic buncher driven at 5.7 GHz. In both configurations power is extracted at 11.4 GHz. In order to understand the basic physics issues involved in extracting RF from a high power beam, both a single resonant cavity and a multicell traveling-wave structure were used for energy extraction. A previously reported problem of high-power RF pulse shortening was overcome, and peak RF power levels of 170 MW have been achieved with the RF pulse of the same duration as the beam current pulse.<>
Keywords :
beam handling equipment; klystrons; particle accelerators; relativistic electron beam tubes; 11.4 GHz; 170 MW; 2.6 cm; 5.7 GHz; 500 MW; beam current pulse; beam kinetic energy; energy extraction; high-gain multicavity klystron; high-gradient accelerators; high-power; high-power RF pulse shortening; low-gain two-cavity subharmonic buncher; multicell traveling-wave structure; power source; relativistic klystrons; short-wavelength; Collaborative work; Electron beams; Klystrons; Laboratories; Linear accelerators; Physics; Radio frequency; Resonance; Space charge; Testing;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
