Title :
Development of a high-precision power supply for bending electromagnets of a heavy ion medical accelerator
Author :
Yamazaki, C. ; Ikawa, E. ; Tominaga, I. ; Saito, T. ; Uchiki, I. ; Takami, Y. ; Yamada, S.
Author_Institution :
Toshiba Mitsubishi-Electr. Ind. Syst. Corp., Fuchu, Japan
fDate :
May 30 2011-June 3 2011
Abstract :
A 3 MW-class high-precision IGBT chopper type power supply was developed for the bending electromagnets of the Heavy-Ion Facility at Gunma University. The current ripple was smaller than ±1×10-5, and the current tracking error was smaller than ±1×10-4. Heavy ion beams were successfully accelerated with this power supply, and medical treatment commenced on 16th March 2010.
Keywords :
biomedical equipment; choppers (circuits); electromagnets; insulated gate bipolar transistors; ion accelerators; patient treatment; current ripple; current tracking error; heavy ion medical accelerator; high-precision IGBT chopper type power supply; high-precision power supply; power 3 MW; Cancer; Choppers; Electromagnets; Insulated gate bipolar transistors; Performance evaluation; Power supplies; Synchrotrons; IGBT chopper; accelerator; electromagnets; high-precision power supply;
Conference_Titel :
Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-1-61284-958-4
Electronic_ISBN :
2150-6078
DOI :
10.1109/ICPE.2011.5944807
