Title :
Development of a Prototype Superconducting Magnet for the FFAG Accelerator
Author :
Obana, T. ; Ogitsu, T. ; Nakamoto, T. ; Sasaki, K. ; Yamamoto, A. ; Yoshimoto, M. ; Mori, Y. ; Fujii, T. ; Iwasa, M. ; Orikasa, T.
Author_Institution :
Graduate Univ. for Adv. Studies, Tsukuba
fDate :
6/1/2006 12:00:00 AM
Abstract :
A superconducting magnet for the Fixed Field Alternating Gradient (FFAG) accelerator has been proposed. The static magnetic field is required to be proportional to the k-th power of the orbit radius where k is the geometrical field index of the accelerator. A left/right asymmetric coil with elliptical aperture is utilized to maximize the horizontal aperture with a compact design. The saddle shaped coil configuration is designed to fulfil the design requirement in terms of integral magnetic field along an arc orbit. In a beam tracking simulation, a particle was circulated and accelerated with the magnetic field generated by the designed coil. A prototype superconducting coil with a cylindrical bore was developed and the field quality was evaluated at warm field measurement
Keywords :
accelerator magnets; magnetic field measurement; particle beam dynamics; superconducting coils; superconducting magnets; synchrotrons; Fixed Field Alternating Gradient accelerator; accelerator magnets; arc orbit; beam tracking simulation; elliptical aperture; geometrical field index; horizontal aperture; integral magnetic field; left-right asymmetric coil; medical treatment; orbit radius; prototype superconducting coil; prototype superconducting magnet; saddle shaped coil configuration; static magnetic field; warm field measurement; Acceleration; Accelerator magnets; Apertures; Magnetic field measurement; Magnetic fields; Particle accelerators; Particle beams; Prototypes; Superconducting coils; Superconducting magnets; Accelerator magnets; FFAG accelerator; medical treatment; superconducting magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2006.870510
