Design of a non-scaling FFAG accelerator for proton therapy
In recent years there has been a revival of interest in Fixed Field Alternating Gradient (FFAG) accelerators. In Japan a number have been built, or are under construction. A new non-scaling approach to the FFAG reduces the required orbit offsets during acceleration and the size of the required aperture, while maintaining the advantage of the low cost magnets associated with fixed fields. An advantage of the non-scaling FFAG accelerator, with respect to synchrotrons, is the fixed field and hence the possibility of high current and high repetition rate for spot scanning. There are possible advantages of the nonscaling design with respect to fixed-field cyclotrons. The non-scaling FFAG allows strong focusing and hence smaller aperture requirements compared to scaling designs, thus leading to very low losses and better control over the beam. We present, here, a non-scaling FFAG designed to be used for proton therapy.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of High Energy Physics, Office of Biological and Environmental Research. Brookhaven National Laboratory Contract DE-AC02-98CH10886 (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 840458
- Report Number(s):
- LBNL-57177; CBP Note - 659; R&D Project: 453201; TRN: US0502015
- Resource Relation:
- Conference: Cyclotron Conference 2004, Tokyo (JP), 10/18/2004--10/22/2004; Other Information: PBD: 1 Apr 2005
- Country of Publication:
- United States
- Language:
- English
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