1982 年 2 巻 2 号 p. 95-102
It is important to estimate the dose due to neutrons emitted by negative pion irradiation. Calculations of neutron kerma distribution are performed. Measured time of flight spectra of neutrons emitted from plateau of depth-dose curve as well as the peak of it in tissue material are used for the calculations. The present calculated results explain the feature of the long range component of neutron dose.