Blumlein-type X-band klystron modulator for Japan Linear Collider

Author

Shidara, Tetsuo ; Akemoto, Mitsuo ; Yoshida, Masato ; Takeda, Seishi ; Takata, Koji ; Ohshima, Iwao ; Teranishi, Tsuneharu

Author_Institution

KEK, Nat. Lab. for High Energy Phys., Ibaraki, Japan

fYear

1991

fDate

6-9 May 1991

Firstpage

1034

Abstract

A Blumlein-type X-band klystron modulator using magnetic-pulse-compression techniques was designed and constructed for the future Japan Linear Collider project. This modulator has been designed to produce pulses that are 200-ns wide, have a 600-kV peak voltage, a 1200-A peak current, a short rise time of approximately 70 ns, and a repetition rate exceeding 200 Hz. To realize a compact modulator, a spiral structure was adopted for conductors of the triaxial Blumlein. Special care was taken with the location of the magnetic switch and the charging reactor in order to eliminate any undesirable voltage during the charging process. Details concerning this X-band klystron modulator and its preliminary performance are described.<>

Keywords

klystrons; linear accelerators; modulators; Blumlein-type X-band klystron modulator; Japan Linear Collider; charging reactor; compact modulator; magnetic switch; magnetic-pulse-compression techniques; peak current; preliminary performance; repetition rate; short rise time; spiral structure; triaxial Blumlein; Impedance; Inductors; Klystrons; Laboratories; Magnetic modulators; Magnetic switching; Pulse modulation; Pulse transformers; Switches; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.164528

Filename

164528