^(189)W衰变纲图

Proposed Decay Scheme of ^(189)W

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。

189^W was produced via the 192^Os （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 （X） singles spectrum measurement was performed using a HPGe γ-ray detector. A decay scheme of 189^Re was proposed on the basis of the literature values of 189^Re levels and according to the decay and level relations as well as the experimental data of γ-ray energies and relative intensities.