Wideband push-pull amplifier for high gradient cavity

Author

Sato, Y. ; Fujieda, M. ; Mori, Y. ; Nakayama, H. ; Ohmori, C. ; Muramatsu, R. ; Uesugi, T. ; Yamamoto, M. ; Toda, M. ; Takagi, A. ; Yoshi, M. ; Taniguch, Y.

Author_Institution

KEK, Tsukuba, Japan

Volume

2

fYear

1999

fDate

1999

Firstpage

1007

Abstract

A high gradient cavity (HGC) using high permeability magnetic alloy (MA) cores has been developed at KEK for the JHF (Japan Hadron Facility) proton synchrotrons. In this paper, we describe two types of push-pull amplifiers to drive the cavity, which were constructed for verifying the cavity performance. An accelerating voltage of 20 kV across the gap of the HGC was generated by the high power push-pull amplifier. This is equivalent to high gradient field of 50 kV/m. The other amplifier and the cavity were prepared for accelerating heavy ions at the HIMAC (Heavy Ion Medical Accelerator in Chiba). For this purpose, it is necessary to sweep the frequency over the wide range from 1 MHz to 8 MHz

Keywords

accelerator RF systems; accelerator cavities; differential amplifiers; ion accelerators; proton accelerators; radiofrequency amplifiers; synchrotrons; 20 kV; HIMAC; Heavy Ion Medical Accelerator in Chiba; high gradient cavity; high permeability magnetic alloy cores; proton synchrotrons; wideband push-pull amplifier; Acceleration; Broadband amplifiers; High power amplifiers; Ion accelerators; Magnetic cores; Permeability; Power generation; Protons; Synchrotrons; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1999. Proceedings of the 1999

Conference_Location

New York, NY

Print_ISBN

0-7803-5573-3

Type

conf

DOI

10.1109/PAC.1999.795430

Filename

795430