Title :
Slow beam extraction experiments at TARN II
Author :
Yoshizawa, M. ; Ando, A. ; Chida, K. ; Kanazawa, M. ; Hattori, T. ; Muto, H. ; Noda, A. ; Noda, K. ; Tomizawa, M. ; Yoshizawa, J. ; Mizobuchi, A.
Author_Institution :
Inst. for Nucl. Study, Tokyo Univ., Japan
Abstract :
A slow extraction system was tested at the injection energy (10 MeV/u) for alpha particles in order to study the feasibility of the system. The system consists of an electrostatic septum, a magnetic septum, a sextupole magnet, and three bump coils attached to the ordinary lattice dipole magnets. Their characteristics are briefly described together with the results of the beam test. A beam spill time of 0.7 s has been achieved for 3*10/sup 5/ extracted particles, although the effects of the current ripple in the magnet power supplies were observed.<>
Keywords :
beam handling equipment; beam handling techniques; electrostatic accelerators; TARN II; alpha particles; beam extraction; beam spill time; bump coils; current ripple; electrostatic septum; injection energy; lattice dipole magnets; magnet power supplies; magnetic septum; sextupole magnet; slow extraction system; Acceleration; Coils; Electrostatics; Hardware; Particle beam injection; Particle beams; Performance evaluation; System testing; Voltage; Wires;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164475
