Science in China Series A: Mathematics

, Volume 40, Issue 6, pp 638–643 | Cite as

Decay study of20Na and its beta-delayed16O recoiling

  • Wenxue Huang
  • Xiaoji Xu
  • Ruichang Ma
  • Zhiqiang Hu
  • Junsheng Guo
  • Yingxiang Guo
  • Hongye Liu
  • Lianlian Xu
Article
Received:

Abstract

The decay of20Na of astrophysical reactions has been studied deeply via20Ne(p, n)20Na reaction. A new β-delayed α decay with α energy of 5 896 ± 6 keV and relative intensity of 0.002 4 ± 0. 000 3 was discovered. At the same time the16O recoiling in β+-delayed α decay of20Na was observed in experiment for the first time. From these, it is inferred that a β-delayed low energy α decay of20Na with energy of ∼780 keV and relative intensity of ∼1.4 was mixed in16O recoiling. In16O recoiling and the low energy α decay, the energy loss for low energy charged particles through matter was discussed in detail. At last, two methods for discriminating the β-delayed low energy α decay of20Na were proposed.

Keywords

nuclear decay recoil beta-delayed particle decay energy loss 
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Copyright information

© Science in China Press 1997

Authors and Affiliations

  • Wenxue Huang
    • 1
  • Xiaoji Xu
    • 1
  • Ruichang Ma
    • 1
  • Zhiqiang Hu
    • 1
  • Junsheng Guo
    • 1
  • Yingxiang Guo
    • 1
  • Hongye Liu
    • 1
  • Lianlian Xu
    • 1
  1. 1.Institute of Modern PhysicsChinese Academy of SciencesLanzhouChina

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