Observation of New Nuclide 239 Pa
YUAN Shuang-gui, YANG Wei-fan, MOU Wan-tong, ZHANG Xue-qian, LI Zong-wei
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
Observation of New Nuclide 239 Pa
YUAN Shuang-gui;YANG Wei-fan;MOU Wan-tong;ZHANG Xue-qian;LI Zong-wei
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
关键词 ：
27.90.+b ,
23.40.-s
Abstract ： A new nuclide 239 Pa was produced by 50MeV/u l8 O bombardment of natural uranium via multi-nucleon transfer reactions (238 U-lp+2n). Protactinium was chemically separated from the uranium target and other produced elements. Then in that chemical fraction the growth and decay of 239 U gamma rays were observed, identifying the 239 U parent as 239 Pa. Subsequent to 239 Pa β- decay, with a half-life of 106±30min, gamma rays of 522.0, 562.0, 638.5 and 681.0keV were also observed.
Key words ：
27.90.+b
23.40.-s
出版日期: 1996-12-01
:
27.90.+b
(A ≥ 220)
23.40.-s
(β-decay;double β-decay; electron and muon capture)
引用本文:
YUAN Shuang-gui;YANG Wei-fan;MOU Wan-tong;ZHANG Xue-qian;LI Zong-wei. Observation of New Nuclide 239 Pa[J]. 中国物理快报, 1996, 13(12): 896-898.
239 Pa. Chin. Phys. Lett., 1996, 13(12): 896-898.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1996/V13/I12/896
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1996, Vol. 13 
