Title :
A heavy ion linac complex for unstable nuclei
Author :
Arai, S. ; Doi, M. ; Hashimoto, Y. ; Hattori, T. ; Imanishi, A. ; Katayama, T. ; Masuda, H. ; Niki, K. ; Takeda, Y. ; Tokuda, N. ; Tomizawa, M. ; Tojyo, E. ; Yoshida, K. ; Yoshizawa, M.
Author_Institution :
Inst. of Nucl. Study, Tokyo Univ., Japan
Abstract :
A heavy ion linac complex for unstable nuclei is under construction at INS. The linac complex consists of a 25.5-MHz split coaxial RFQ (SCRFQ), a charge-stripper section and a 51-MHz interdigital-H (IH) linac. The SCRFQ with modulated vanes, 0.9 m in diameter and 8.6 m in length, accelerates ions with a charge-to-mass ratio (q/A) greater than 1/30 from 2 to 170 keV/u. The stripper is a carbon foil. The IH linac, 1.34 m in diameter and 5.54 m in total length, comprises four cavities and three magnetic quadrupole triplets placed between cavities, accelerates ions with q/A⩾1/10 and varies the output energy continuously in the range 0.17~1.05 MeV/u. The duty factor of the linac complex is 30% for q/A=1/30 ions
Keywords :
ion accelerators; linear accelerators; 0.9 m; 1.34 m; 25.5 MHz; 5.54 m; 51 MHz; 8.6 m; C; C foil; cavities; duty factor; heavy ion linac; interdigital-H linac; magnetic quadrupole triplets; split coaxial RFQ; unstable nuclei; Acceleration; Blades; Coaxial components; Cyclotrons; Linear particle accelerator; Magnetic separation; Particle beams; Prototypes; Research and development; Structural beams;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309131
