@misc{oai:repo.qst.go.jp:00065388,
 author = {福田, 茂一 and 福田 茂一},
 month = {Dec},
 note = {Purpose
The aim of this presentation is to provide some introductory knowledge and the most recent status of proton beam therapy including facilities to medical physicists who are familiar with the radiation therapy using X-rays, electrons, but unfamiliar with proton therapy.
\nMethods
After tracing the history of the charged particle therapy including proton beam therapy briefly, we concentrate on the way to make irradiation fields to realize the rationale of the radiotherapy, that is, the delivery of a high dose of energy to the tumour while sparing normal tissue around it.  In addition we discuss issues related to interactions between proton beams and tissues such as relative biological effectiveness (RBE) around and beyond the Bragg peak.
We also review some proton beam facilities and their components including ion sources, accelerators, irradiation system, planning system and positioning system and so on. Furthermore, we delineate a picture of the future of proton beam therapy.
\nResults
Proton beam therapy is expected to be a promising method for offering the superior quality of life to patients. The number of proton facilities has been increasing over the world.  However, there are some issues to be solved such as clinical performance compared to other methods such as IMRT, reduction of building and maintenance costs and human resources. There are coming some new technologies and ideas to solve these problems.
\nConclusion
Radiotherapy including proton beam therapy shows promise for the treatment of patients with cancers from the viewpoint of quality of life.  Especially, proton beam therapy has the potential to keep evolving., 13th Asia-Oceania Congress of Medical Physics 11th South-East Asian Congress of Medical Physics (AOCMP & SEACOMP 2013)},
 title = {Physics of Proton Beam Therapy},
 year = {2013}
}