Speaker
Dr
Tsukasa Aso
(Toyama National College of Maritime Technology, JST CREST)
Description
The GEANT4 Monte Carlo code provides many powerful functions for conducting
particle transport simulations with great reliability and flexibility. GEANT4 has
been extending the application fields for not only the high energy physics but
also medical physics. Using the reliable simulation for the radiation therapy, it
will become possible to validate treatment planning and select the most
effective one. For the use of a simulation in the clinical application, the
simulation has to reproduce the dose distributions in three-dimensions with the
best accuracy for ensuring the patient safety.
As a generalized simulator, the GEANT4 based simulation framework has been
developed and used for the verification of the simulated dose distribution to
the measurements. Three types of irradiation systems for proton therapy were
successfully implemented on the top of this framework; those are the gantry
treatment nozzle at the Hyogo Ion Beam Medical Center (HIBMC), the gantry
treatment nozzle at the National Cancer Center (NCC), and the eye treatment
facility of UC San Francisco at the Crocker Nuclear Laboratory cyclotron, UC
Davis (CNL).
The validation of the simulation was performed for the proton ranges in
important materials at beam line and the size of radiation field, respectively.
Then dose distributions in simulation were verified with measurements for
Bragg peak and spread out Bragg peak, respectively. We will report a belief
description of the developed simulation, and the comparisons of simulated dose
distributions with measurements as well as the validation of the beam
irradiation system.
Primary author
Dr
Tsukasa Aso
(Toyama National College of Maritime Technology, JST CREST)
Co-authors
Dr
Akinori Kimura
(Ashikaga Institute of Technology, JST CREST)
Dr
Inder Daftari
(UCSF)
Dr
Koichi Murakami
(KEK, JST CREST)
Dr
Satoru Kameoka
(KEK, JST CREST)
Dr
Takashi Akagi
(Hyogo Ion Beam Medical Center, JST CREST)
Dr
Takashi Sasaki
(KEK, JST CREST)
Dr
Teiji Nishio
(National Cancer Center, JST CREST)
