Spectral measurements of neutrons, protons, deuterons and tritons produced by 100 MeV/nucleon He bombardment

We measured angular and energy distributions of neutrons, protons, deuterons and tritons produced by 100 MeV/nucleon He ions stopping in thick carbon, aluminum, copper and lead targets using the HIMAC (Heavy Ion Medical Accelerator in Chiba) of NIRS (National Institute of Radiological Sciences), Japan by using the time-of-flight method coupled with the ΔE–E counter system. The ΔE counter of the NE102A plastic scintillator was used to discriminate charged particles from noncharged particles and to measure charged particle energy spectra. The E counter of the NE213 liquid scintillator was used to measure neutron energy spectra. The experimental spectra were compared with the calculation using the LCS code and the calculated spectra are generally in rather good agreement with the measured spectra of these four secondary particles.