432-MHz RF source for the JHP proton linac

Author

Ono, M. ; Anami, S. ; Hanaki, H. ; Igarashi, Z. ; Kawamura, M. ; Kubo, T. ; Kubota, C. ; Kudo, K. ; Takasaki, E. ; Takenaka, T.

Author_Institution

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

fYear

1993

fDate

17-20 May 1993

Firstpage

1163

Abstract

A high duty UHF (432-MHz) RF source for the intense proton linac of the Japanese Hadron Project (JHP) has been constructed at KEK. A test-linac consisting of a RFQ and a drift-tube (DTL) structures is under construction. The UHF RF power generated by 2-MW peak power klystron will be fed into these structures with 650 μsec pulse-duration and 50 Hz repetition-rate through an waveguide system with a Y-junction circulator. A dc high voltage (max. 95 kV) is applied to a cathode of the klystron and a beam current is modulated up to 40 A by a pulsed high voltage (max. 80 kV) applied to a modulating anode. The klystron power supply can operate two such klystrons simultaneously with two individual anode modulators. The first operation of this RF power source and the preliminary test of an RF signal processing such as PLL and ALC are reported

Keywords

klystrons; linear accelerators; nuclear electronics; power supplies to apparatus; proton accelerators; 2 MW; 40 A; 432 MHz; 650 mus; 95 kV; JHP proton linac; Japanese Hadron Project; RF signal processing; RF source; Y-junction circulator; anode modulators; intense proton linac; klystron power supply; waveguide system; Anodes; Klystrons; Linear particle accelerator; Optical modulation; Power generation; Protons; Pulse modulation; Radio frequency; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.308656

Filename

308656