[3I01-08] Radiation Behavior

[3I03] Shielding Experiment with 24 GeV Protons at CERN/CHARM

Estimation of neutron energy spectra using measured data by activation detectors

*Eunji Lee¹, Toshiya Sanami¹, Noriaki Nakao², Tsuyoshi Kajimoto³, Nobuhiro Shigyo⁴, Hiroshi Yashima⁵, Takahiro Oyama⁶, Robert Froeschl⁷, Elpida Iliopoulou⁷, Angelo Infantino⁷ (1. KEK/SOKENDAI, 2. Shimizu Corp, 3. Hiroshima Univ., 4. Kyushu Univ., 5. KURNS, 6. KEK, 7. CERN)

Keywords:Shielding experiment, High energy accelerator, Activation detector, Unfolding method, Neutron spectra

High-energy neutrons generated by irradiating 24 GeV protons on a copper target were measured using the activation detectors after passing through steel and concrete shields at the CHARM facility of CERN. The neutron energy spectra were unfolded by measured data obtained from the detectors and their reaction cross-sections.