Title :
Measurements on injection property in HIMAC synchrotron
Author :
Noda, K. ; Kanazawa, M. ; Takada, E. ; Itano, A. ; Sato, S. ; Yamada, S. ; Nomura, T. ; Kohno, T. ; Araki, N.
Author_Institution :
Nat. Inst. of Radiol. Sci., Chiba, Japan
Abstract :
A multiturn-injection method has been used in the HIMAC synchrotron to obtain higher beam-intensity. Total and partial efficiency of multiturn injection are measured. The stored beam-intensity and its lifetime were considerably decreased above 600 μA for an injection current of alpha ions with 6 MeV/n, mainly due to the space charge effect on the transverse tune. A dependence of a stored intensity on vertical tune is investigated and the tune-shift is measured by the space charge effect
Keywords :
ion accelerators; particle beam injection; space charge; synchrotrons; HIMAC; beam lifetime; beam-intensity; multiturn-injection method; partial efficiency; space charge effect; synchrotron; total efficiency; transverse tune; tune-shift; vertical tune; Biomedical equipment; Cancer; Charge measurement; Current measurement; Ion accelerators; Medical services; Medical treatment; Positrons; Space charge; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.749592
