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Uozumi, Yusuke*; Shigyo, Nobuhiro*; Uehara, Haruhiko*; Nishizawa, Tomoya*; Mizuno, Takafumi*; Satoh, Daiki; Sanami, Toshiya*; Koba, Yusuke*; Takada, Masashi*; Matsufuji, Naruhiro*; et al.
HIMAC-140, p.234 - 235, 2013/08
In the heavy-ion radiotherapy, considerable discussion has been attracted regarding the potential for second cancer induction by secondary neutrons produced from the primary heavy-ion fragmentation. We have started new measurements at 100 MeV/u to investigate the neutron production by heavy ions decelerating in a patient body.
Ogawa, Tatsuhiko; Sato, Tatsuhiko; Tsuda, Shuichi; Morev, M.*; Kosako, Toshiso*; Murakami, Takeshi*
HIMAC-140(NIRS-M-260) (Internet), p.280 - 281, 2013/08
Energy dependent fragmentation cross-sections of 
C(
C,x)X reactions were measured in an energy range from 50 MeV/u to 400 MeV/u by bombarding a thick graphite target with 400 MeV/u C ion beam. The fragments escaping from the target rear-surface was detected by a newly developed telescope which consists of three scintillators. Fragment charge and mass were identified by 
E-E analysis and TOF-E analysis, respectively. The agreement between the obtained cross-sections and literature data within a factor of 2 at 400 MeV/u indicates the validity of our method and the measured excitation functions.
