title: Development of a new multi-modal Monte-Carlo radiotherapy planning system.
abstract: A new multi-modal Monte-Carlo radiotherapy planning system (developing code: JCDS-FX) is under development at Japan Atomic Energy Agency. This system builds on fundamental technologies of JCDS applied to actual boron neutron capture therapy (BNCT) trials in JRR-4. One of features of the JCDS-FX is that PHITS has been applied to particle transport calculation. PHITS is a multi-purpose particle Monte-Carlo transport code. Hence application of PHITS enables to evaluate total doses given to a patient by a combined modality therapy. Moreover, JCDS-FX with PHITS can be used for the study of accelerator based BNCT. To verify calculation accuracy of the JCDS-FX, dose evaluations for neutron irradiation of a cylindrical water phantom and for an actual clinical trial were performed, then the results were compared with calculations by JCDS with MCNP. The verification results demonstrated that JCDS-FX is applicable to BNCT treatment planning in practical use.
authors.affiliation: Department of Research Reactor and Tandem Accelerator, Japan Atomic Energy Agency, Tokai, Ibaraki, Japan. kumada.hiroaki@jaea.go.jp
authors.forename: H
authors.initials: H
authors.lastname: Kumada
authors.forename: T
authors.initials: T
authors.lastname: Nakamura
authors.forename: M
authors.initials: M
authors.lastname: Komeda
authors.forename: A
authors.initials: A
authors.lastname: Matsumura
mesh_terms: D016754:Boron Neutron Capture Therapy / Q000706:statistics & numerical data*; D006801:Humans; D007564:Japan; D009010:Monte Carlo Method; D009369:Neoplasms / Q000532:radiotherapy; D019047:Phantoms, Imaging; D011880:Radiotherapy Planning, Computer-Assisted / Q000706:statistics & numerical data*; D012984:Software; D014867:Water
chemical_list: D014867:Water