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A new neutron-deficient isotope,235Am

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

The new transuranium neutron-deficient isotope235Am was produced by bombarding of238Pu with 35-MeV protons beam via the (p,4n) reaction. The reaction products were transported by a helium-jet system. A rapid radiochemical method was employed for separating the americium isotopes from the complex products. From the observed Kx-rays of Np, γ-ray of235Pu and x-γ coincidence measurements, the new neutron-deficient isotope235Am with a half-life 15±5min was definitely identified for the first time.

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Author information

Authors and Affiliations

  1. Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, Peoples’s Republic of China

    J. Guo, Z. Gan, H. Liu, W. Yang, L. Shi, W. Mu, T. Guo, K. Fang, S. Shen, S. Yuan, X. Zhang, Z. Qin, R. Ma & J. Zhong

  2. Institute of High Energy Physics, Chinese Academy of Sciences, 100039, Beijing, People’s Republic of China

    S. Wang, D. Kong & J. Qiao

Authors
  1. J. Guo
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  2. Z. Gan
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  3. H. Liu
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  4. W. Yang
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  5. L. Shi
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  6. W. Mu
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  7. T. Guo
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  8. K. Fang
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  9. S. Shen
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  10. S. Yuan
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  11. X. Zhang
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  12. Z. Qin
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  13. R. Ma
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  14. J. Zhong
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  15. S. Wang
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  16. D. Kong
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  17. J. Qiao
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Corresponding author

Correspondence to J. Guo.

Additional information

Communicated by B. Herskind

This work was supported by National Natural Science Foundation of China and Chinese Academy of Sciences

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Guo, J., Gan, Z., Liu, H. et al. A new neutron-deficient isotope,235Am. Z. Physik A — Hadrons and Nuclei 355, 111–112 (1996). https://doi.org/10.1007/BF02769672

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  • DOI: https://doi.org/10.1007/BF02769672

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