用阈探测器活化法测量了每个核子动能(简称单核能)为50MeV 18O离子轰击厚靶(Be、Cu、Au)时出射中子的能量分布、注量率分布和中子角分布，得到了18O离子的中子产额、前向中子发射率和中子剂量当量率分布的数据。并与国外报道的单核能在20MeV以下的低能重离子轰击厚靶研究中得到的中子剂量学参数进行了比较和分析。%Neutron energy, fluence rate, angular distributions and dose equivalent rate distributions around thick Be, Cu, Au targets bombarded by 50MeV/u 18O-ion were measured by using a threshold detector activation method. The neutron yields and emission rates in the forward direction were obtained. The measured results were compared with the results obtained in low energy heavy ion studies.
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