Title :
Design of an 80-MHz RFQ linac for heavy ions
Author :
Takeda, O. ; Tanabe, Y. ; Satoh, K. ; Kawazu, S. ; Oguri, Y. ; Okamura, M. ; Hattori, T.
Author_Institution :
Toshiba Corp., Yokohama, Japan
Abstract :
At the Tokyo Institute of Technology (TIT) a four-vane RFQ is to be applied for inertial confinement fusion research. The RFQ (TIT RFQ) is designed for acceleration of particles with charge to mass ratio (q/A) of 1/16 from 5 keV/amu to 213 keV/amu. The planned maximum injection beam current is 10 mA for 16O+. Beam dynamics was calculated using a PIC (particle-in-cell) code which can take influence of the multipole components in the intervane potential into account. For an input beam current of 10 mA a transmission of 60% was obtained. A half-scaled cold model was fabricated to investigate fundamental rf characteristics. In the cold model experiment, the difference in electric field strength between each quadrant was minimized to ±3% by using side tuners and a flat field distribution along the beam axis was achieved by adjusting end tuners
Keywords :
cavity resonators; ion accelerators; linear accelerators; particle beam diagnostics; 80 MHz; 16O+; O; RFQ linac; TIT RFQ; beam dynamics; electric field strength; four-vane RFQ; heavy ions; inertial confinement fusion; particle-in-cell code; Acceleration; Blades; Computational modeling; Computer simulation; Frequency; Linear particle accelerator; Particle beam injection; Particle beams; Space charge; Tuners;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309571
