Proceedings of the Korean Society of Medical Physics Conference (한국의학물리학회:학술대회논문집)

Korean Society of Medical Physics (한국의학물리학회)
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Study on the Fluence and LET Distribution of Projectile Fragments Produced from Heavy Ion Therapeutic Beams

  • Komori, Masataka (Div. of Medical Physics, National Institute of Radiological Sciences(NIRS), Chiba) ;
  • Fukumura, Akifumi (Div. of Medical Physics, National Institute of Radiological Sciences(NIRS), Chiba) ;
  • Hirai, Masaaki (Div. of Medical Physics, National Institute of Radiological Sciences(NIRS), Chiba) ;
  • Kanai, Tatuaki (Div. of Medical Physics, National Institute of Radiological Sciences(NIRS), Chiba) ;
  • Kohno, Ryosuke (Div. of Medical Physics, National Institute of Radiological Sciences(NIRS), Chiba) ;
  • Kohno, Toshiyuki (Dept. of Energy Science, Tokyo Institute of Technology, Yokohama) ;
  • Matsufuji, Naruhiro (Div. of Medical Physics, National Institute of Radiological Sciences(NIRS), Chiba) ;
  • Nanbu, Syuya (Dept. of Energy Science, Tokyo Institute of Technology, Yokohama) ;
  • Nishio, Teiji (National Cancer Center Hospital East, Kashiwa)
  • Published : 2002.09.01
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Abstract

Fluence and LET spectrum for 290,400 MeV/u $\^$12/C and 400 MeV/u $\^$20/Ne beams have been measured by a $\Delta$E-E counter telescope. Total charge-changing cross sections are deduced from measured fluence. The measured cross sections agree with previous measurements, however, they are disagreement with a model calculation. To dose-averaged LETs, the model calculation can reproduce the measured LETs except for peak LETs at Bragg peak region.

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