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Chinese Physics C> 1997, Vol. 21> Issue(9) : 783-786 

Decay Scheme of 229Ra

  •  Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000

  • The 229Ra has been produced in the 232Th(n,a)229Ra reaction by 14MeV neutron irradiation of natural Thorium. The 229Ra activities were separated from irradiated target material by radiochemical separation technique. 18 new γ rays with energies 14.5,15.6,18.8,21.8,22.5,44.0,47.5,55.0,63.0,69.6,93.6,94.1,98.5,102.2,104.5,106.1,161.171.5keV attributed to the 229Ac were observed for the first time by usin γ(X) spectroscopic methods. A partial decay scheme of 229Ra was proposed.
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    [1] H. L. Ravn et al., J. Inorg.Nucl.Chem.,37(1975)383.[2]L. Westgaard et al.,Z. Phys.,A275(1975)127.[3]R. C. Thompson et al.,Phys.Rev.,C15(1977)2019.[4]G. A. Leander et al.,Phys.Rev.,C37(1988)2744.

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Shen Shuifa, Yuan Shuanggui, Yang Weifan, Fang Keming, Mou Wantong, Zhang Zueqian, Li Zongwei, Zhong Jiquan, Guo Tianrui and Chen Zhantu. Decay Scheme of 229Ra[J]. Chinese Physics C, 1997, 21(9): 783-786.
Shen Shuifa, Yuan Shuanggui, Yang Weifan, Fang Keming, Mou Wantong, Zhang Zueqian, Li Zongwei, Zhong Jiquan, Guo Tianrui and Chen Zhantu. Decay Scheme of 229Ra[J]. Chinese Physics C, 1997, 21(9): 783-786. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Decay Scheme of 229Ra

    Corresponding author: Shen Shuifa,
  • Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1997-09-05

Abstract: The 229Ra has been produced in the 232Th(n,a)229Ra reaction by 14MeV neutron irradiation of natural Thorium. The 229Ra activities were separated from irradiated target material by radiochemical separation technique. 18 new γ rays with energies 14.5,15.6,18.8,21.8,22.5,44.0,47.5,55.0,63.0,69.6,93.6,94.1,98.5,102.2,104.5,106.1,161.171.5keV attributed to the 229Ac were observed for the first time by usin γ(X) spectroscopic methods. A partial decay scheme of 229Ra was proposed.

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