The physical and clinical benefits of charged particle therapy (CPT) are well recognized.
However, the availability of CPT and complete exploitation of dosimetric advantages are still …

In the last decades, important technological progress has been made to enhance the quality
and efficiency of particle therapy treatments. Continuous improvements in dose delivery …

Much research in recent years has focused on circular accelerators that accelerate and store
secondary particles with a large momentum spread, such as muons, unstable nuclei, and …

A key challenge in particle accelerators is to achieve high peak intensity. Space charge is
particularly strong at lower energy such as during injection and typically limits achievable …

A method and apparatus for use as a compact medical ion accelerator includes a charged
particle linear accelerator module and a pair of fixed field magnet assemblies. The linear …

Here I present an overview of developments in Fixed Field Alternating Gradient accelerators,
focusing on high intensity hadron accelerator designs. I will detail progress in studies of …

The paper describes studies of high intensity proton accelerators for a next-generation
source of short-pulse spallation neutrons. Along with conventional designs using rapid …

Short pulsed beam extraction from Kurns FFAG Page 1 SHORT PULSED BEAM EXTRACTION
FROM KURNS FFAG T. Uesugi∗, Y. Ishi and Y. Mori Institute for Integrated Radiation and …

In this paper, we investigate the stability of the particle trajectories in fixed field alternating
gradient accelerators (FFAs) in the presence of field errors. The emphasis is on the scaling …

In the KURRI FFAG synhrotron, rapid beam loss of factor 100 is observed right after the
injection. In the synchrotron, charge-exchanging multi-turn injection is adopted with a …