典型文献
Direct search for primordial 244Pu in Bayan Obo bastnaesite
文献摘要：
The abundances of heavy elements produced in r-process nucleosynthesis in the early solar system need experimental verification.244Pu could be the heaviest primordial nuclide produced before the formation of the Earth still being detectable today.As recent attempts failed to confirm the discovery of 244Pu sig-nals at a concentration of 1.0×10-18 g/g in bastnaesite reported by Hoffman et al.in this study,the total primordial 244Pu in 450 g bastnaesite sample from Bayan Obo ore(China)was measured using ultra-sensitive compact accelerator mass spectrometry(AMS).As no 244Pu signal was detected,an upper limit for the 244Pu in our bastnaesite sample was estimated to be 2.1×10-20 g/g at 99％confidence level.
文献关键词：
中图分类号：
作者姓名：
Yang Wu;Xiongxin Dai;Shan Xing;Maoyi Luo;Marcus Christl;Hans-Arno Synal;Shaochun Hou
作者机构：
China Institute for Radiation Protection,Taiyuan 030006,China;Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions,Suzhou 215006,China;Laboratory of Ion Beam Physics,ETH Zurich,Zurich 8093,Switzerland;Baotou Research Institute of Rare Earths,Baotou 014030,China
文献出处：
引用格式：
[1]Yang Wu;Xiongxin Dai;Shan Xing;Maoyi Luo;Marcus Christl;Hans-Arno Synal;Shaochun Hou-.Direct search for primordial 244Pu in Bayan Obo bastnaesite)[J].中国化学快报（英文版）,2022(07):3522-3526
A类：
244Pu
B类：
Direct,search,primordial,Bayan,Obo,bastnaesite,abundances,heavy,elements,produced,process,nucleosynthesis,early,solar,system,need,experimental,verification,could,heaviest,nuclide,before,formation,Earth,still,being,detectable,today,recent,attempts,failed,confirm,discovery,nals,concentration,reported,by,Hoffman,this,study,total,sample,from,China,was,measured,using,ultra,sensitive,compact,accelerator,mass,spectrometry,AMS,no,signal,detected,upper,limit,our,estimated,confidence,level
AB值：
0.575288
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