^(189)W衰变纲图  

Proposed Decay Scheme of ^(189)W

作　　者：徐岩冰[1] 杨维凡[1] 袁双贵[1] 丁华杰[1] 赵之正[1] 牟万统[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《科学技术与工程》2006年第16期2529-2531,共3页Science Technology and Engineering

基　　金：国家自然科学基金(10575118);国家重点基础研究发展规划(G2000077400) ;中国科学院资助

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。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.

关 键 词：189^W 189Re γ射线能量 激发能级 衰变纲图 

分 类 号：O571.435[理学—粒子物理与原子核物理]