Speaker
Dr
Satoru Kameoka
(High Energy Accelerator Research Organisation)
Description
Geant4 is a toolkit to simulate the passage of a particle through matter based on
Monte Carlo method. Geant4 incorporates many of available experimental data and
theoretical models over wide energy region, extending its application scope not only
to high energy physics but also medical physics, astro-physics, etc. We have
developed a simulation framework for heavy ion therapy system based on Geant4 to
enable detailed treatment planning. Heavy ion beam features high RBE (relative
biological effectiveness) and intensive dose given at certain depth (Bragg peak),
allowing patients to suppress unwanted exposure on normal tissue. Pioneering trials
of heavy ion therapy carried out in a few countries proved its availability,
triggering many projects to construct new heavy ion therapy facilities around the
world. However, reaction of heavy ions on material involves many complex processes as
compared to X-ray or electron beam used in traditional radiation therapy, and the
development of a new reliable simulator is essential to determine the beam intensity,
energy, size of radiation field, and so on required for each case of treatment.
Geant4 is a suitable tool for this purpose as a generalized simulator with powerful
capability to describe complicated geometry. We implemented the heavy ion beam lines
of several facilities in Geant4, including dedicated apparatus, and tested the Geant4
physics processes in comparison with experimental data. We will introduce the
simualtion framework and present the validation results.
Primary author
Dr
Satoru Kameoka
(High Energy Accelerator Research Organisation)
Co-authors
Akinori Kimura
(Ritsumeikan University, Japan Science And Technology Agency CREST)
Hajime Koikegami
(Ishikawa-harima Heavy Industries)
Koichi Murakami
(High Energy Accelerator Research Organisation, Japan Science And Technology Agency CREST)
Masataka Komori
(National Institute of Radiological Sciences)
Mutsumi Tashiro
(Gunma University)
Nobuyuki Kanematsu
(National Institute of Radiological Sciences)
Osamu Takahashi
(Accelerator Engineering Corporation)
Syunsuke Yonai
(National Institute of Radiological Sciences)
Takashi Sasaki
(High Energy Accelerator Research Organisation, Japan Science And Technology Agency CREST)
Takeo Nakajima
(Accelerator Engineering Corporation)
Tatsuaki Kanai
(National Institute of Radiological Sciences)
Tsukasa Aso
(Toyama National College of Maritime Technology, Japan Science And Technology Agency CREST)
Yoshihisa Ihara
(Ishikawa-harima Heavy Industries)
Yousuke Kusano
(Accelerator Engineering Corporation)
Yuka Kobayashi
(National Institute of Radiological Sciences)
