Title :
Upgrade of an RF source of the linac for the B-Factory project
Author :
Fukuda, S. ; Anami, S. ; Saito, Y. ; Michizono, S. ; Nakao, K. ; Sato, I.
Author_Institution :
KEK, Nat. Lab. for High Energy Phys., Ibaraki, Japan
Abstract :
The B-Factory project is a future plan at KEK requiring an energy upgrade of the KEK linac from 2.5 GeV to 8.0 GeV. This paper describes an upgrade plan and recent progress concerning the RF source. A test to increase the RF power using the existing 30-MW klystron is being carried out and an output power of 51.5 MW has been obtained by increasing the beam voltage up to 310 kV while optimizing the focusing magnetic field. Tests using a 60-MW klystron are also planned. The choice between upgrading of the present klystron and the use of a 60-MW klystron depends an the pulse-compression system to be adopted. The most efficient way regarding costs is being surveyed in order to use the existing components, such as the focusing magnet and the pulse transformer with only slight changes
Keywords :
beam handling equipment; beam handling techniques; electron accelerators; klystrons; linear accelerators; nuclear electronics; pulse shaping circuits; pulse transformers; 30 MW; 310 kV; 51.5 MW; 60 MW; 8 GeV; B-Factory project; KEK; RF power; RF source; beam voltage; energy upgrade; focusing magnet; focusing magnetic field; klystron; linac; pulse transformer; pulse-compression system; Acceleration; Klystrons; Laboratories; Linear particle accelerator; Pulse modulation; Pulse transformers; Pulse width modulation; Radio frequency; Space vector pulse width modulation; Testing;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308647
