150 MeV Fixed Field Alternating Gradient Acceralator and Return-Yoke Free magnet.
Abstract
150 MeV Fixed Field Alternating Gradient(FFAG) Accelerator is now under construction at KEK. After the fruitful success of the first proton acceleration by POP FFAG, we start developing 150 MeV FFAG, which is the prototype accelerater to investigate the possibilities of various application, the proton therapy, the accelerator as the reactor driver and so on. A distinguished features of this machine is Return-Yoke Free magnet. In order to overcome the peculiar disadvantage of FFAG, that is a lack of the space for the beam injection and extraction, we innovated the new type of magnet that has no return yoke. The magnets was fabricated, and tested to be measured the profile of magnetic field. One of the technical issues of 150 MeV FFAG accelerator is the operation in high repetition rate, another is the establishment of the beam extraction in very rapid cycle acceleration. The switching controller of power supply for the kicker magnet is designed and fabricated. Present status of the construction of 150 MeV FFAG acceralator will be presented.
- Publication:
-
APS Meeting Abstracts
- Pub Date:
- October 2001
- Bibcode:
- 2001APS..HAW.TG001N