Proceedings of the Korean Society of Medical Physics Conference (한국의학물리학회:학술대회논문집)
- 2002.09a
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- Pages.183-185
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- 2002
Development of Membrane Type Liquid Variable Compensator
- Takahashi, Seiji (Dept. Biomed. Eng., Toin University of Yokohama) ;
- Ochiai, Makoto (Dept. Biomed. Eng., Toin University of Yokohama) ;
- Hayakawa, Yoshinori (Dept. Biomed. Eng., Toin University of Yokohama)
- Published : 2002.09.01
Abstract
Heavy ion and proton therapy necessitate range weeks, which are time consuming. Three types of variable compensator, membrane type liquid variable compensator, are proposed by some of the authors to overcome the difficulties, by those arbitrarily thickness distribution of compensator obtained from treatment planning is created at the site of treatment. None of the ideas, however, is yet realized. In this research, we are trying to construct prototype membrane-type liquid variable compensator. This variable compensator partitions air and liquid with elasticity membrane and changes the surface of the elasticity membrane with the thread. The air and oil move through holes to and from the out of beam side of two boxes in which they are contained. The boxes are made of Plexiglas(PMMA), the thread which is made of nylon, the elasticity film which is made from latex for the moment.