@article{oai:repo.qst.go.jp:00076670,
 author = {Tagawa, L. and Kataoka, J. and Sueoka, K. and Fujieda, K. and Kurihara, T. and Arimoto, M. and Mochizuki, S. and Maruhashi, T. and Toshito, T. and Kimura, M. and Inaniwa, Taku and Inaniwa, Taku},
 journal = {Nuclear Instruments and Methods in Physics Research Section A},
 month = {Aug},
 note = {Proton therapy causes less damage to healthy tissue compared to other radiation therapies; however, the possible damage caused by secondary, fast neutrons is almost unknown. In some simulations, neutron dose amounts to
10% of the proton dose; therefore, a real-time visualization of the neutron dose is needed. We have developed a neutron camera that can visualize the direction and intensity of fast neutron sources. The camera consists of
eight units of a plastic scintillator (EJ-299-34) coupled with a compact PMT (R9880U). We demonstrate that a 252Cf neutron source is correctly imaged with an angular resolution of 15.5 deg (FWHM). In addition, fast neutrons emitted from the brass block irradiated by 70 MeV were successfully monitored in real time. Finally, we present our prospects for future clinical applications.},
 pages = {31--33},
 title = {Development of novel neutron camera to estimate secondary particle dose for safe proton therapy},
 volume = {936},
 year = {2019}
}