Title :
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
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;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308656
