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Minohara, S.

Paper Title Page
TUPP116 Development of Scanning System at HIMAC 1794
 
  • T. Furukawa, T. Inaniwa, Y. Iwata, T. Kanai, S. Minohara, S. Mori, T. Murakami, A. Nagano, K. Noda, N. Saotome, S. Sato, T. Shirai, E. Takada, Y. Takei
    NIRS, Chiba-shi
 
  A new treatment facility project, as an extension of the existing HIMAC facility, has been initiated for the further development of carbon-ion therapy. This new treatment facility will be equipped with a three-dimensional irradiation system with pencil beam scanning. For moving-tumor treatments with high accuracy, the most important part of the design study is how to realize this by scanning irradiation. For this purpose, we have studied a combination of the rescanning technique and the gated irradiation method. In order to avoid hot and/or cold spots even by a relatively larger number of rescannings within the acceptable irradiation time, we studied a fast scanning system. Further, this concept was experimentally demonstrated at the HIMAC. The design and the related study of the scanning system for the HIMAC new treatment facility will be presented.  
TUPP125 New Heavy-ion Cancer Treatment Facility at HIMAC 1818
 
  • K. Noda, T. Furukawa, T. Inaniwa, Y. Iwata, T. Kanai, M. Kanazawa, S. Minohara, S. Mori, T. Murakami, S. Sato, T. Shirai, E. Takada, Y. Takei, M. Torikoshi
    NIRS, Chiba-shi
 
  The first clinical trial of cancer treatment with carbon beams generated from the HIMAC was conducted in June 1994. Based on more than ten years of experience with HIMAC, we have proposed a new treatment facility for the purpose of further development of the heavy-ion cancer therapy with HIMAC. This facility, which is connected with the HIMAC synchrotron, consists of three treatment rooms: two rooms equipped with horizontal and vertical beam-delivery systems and one room with a rotating gantry. In both the fixed beam-delivery and rotating gantry systems, a 3D beam-scanning method is employed with gated irradiation with patient’s respiration in order to increase the treatment accuracy. Since the beam control for the size, the position and the time structure plays an essential role in the 3D beam scanning with the irradiation gated with respiration, the R&D study has been carried out with the HIMAC synchrotron since 2006. At December 2007, the Japanese government approved this project. We will report the design and R&D studies toward the construction of the new treatment facility.