【摘要】 用14.8 MeV中子同天然锇反应, 取道192O(n, α) 反应产生189W。通过放射化学分离流程, 从反应产物中分出W。用高纯Ge探测器完成放射性W样品γ射线单谱的测量。在189Re激发能级文献值的基础上并依据衰变和能级的关系以及189W衰变的γ射线能量和相对强度的实验数据, 给出了建议的189W衰变纲图。更多还原

【Abstract】 189W was produced via the 192Os(n,α) reaction by bombardment of natural Os with 14 MeV neutrons. W samples were separated from reaction productions by using a radiochemical procedure. The γ(χ) singles spectrum measurement was performed using a HPGe γ-ray detector. A decay scheme of 189Re was proposed on the basis of the literature values of 189Re levels and according to the decay and level relations as well as the experimental data of γ-ray energies and relative intensities.更多还原