@misc{oai:repo.qst.go.jp:00070109,
 author = {Namba, Masao and 難波 将夫},
 month = {May},
 note = {It is important for radiation therapy to evaluate the extent of unwanted exposure to normal tissues outside of the target in order to assess the risk of secondary cancer. During the particle therapy, a lot of secondly particles are generated through nuclear reactions in a patient’s body or irradiation devices. Because the neutron is distributed broadly and its RBE is high, an evaluation of second cancer risk should be associated with neutrons. Monte Carlo calculation is a useful technique for the estimation of neutrons in the patient’s body; however, the verification for the precision of the simulation is still poor. Therefore we studied the distribution of secondly neutrons in a water phantom by metal foil activation method and compared with the estimation of Monte Carlo code PHITS (Particle and Heavy Ion Transport code System)., PTCOG49　(第49回　粒子線治療世界会議)},
 title = {Experimental verification of the Monte Carlo code PHITS on secondary neutron distribution inside of a water phantom for carbon-ion radiotherapy},
 year = {2010}
}