Science in China Series A: Mathematics

, Volume 45, Issue 10, pp 1329–1334 | Cite as

Determination for β -delayed fission probability of230Ac

  • Yuan Shuanggui
  • Yang Weifan
  • Xu Yanbing
  • Xiao Yonghou
  • Luo Yixiao
Article
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Abstract

The230Ra has been produced via232Th-2p reaction induced by 60 MeV/u18O ion irradiation of natural thorium. The radium was radiochemically separated from the mixture of thorium and reaction products. Thin Ra sources in which230Ac was got through\(^{230} Ra\xrightarrow{{\beta ^ - }}^{230} \)Ac were prepared for observing fission fragments from β-delayed fission of230Ac. The sources were exposed to the mica fission track detectors and measured by the HPGe γ detector. The precursor230Ac was identified by means of observed two fission events as well as γ spectra, and the β-delayed fission probability of230Ac was obtained to be (1.19 ± 0.85) × 10-8.

Keywords

β -delayed fission probability multinucleon transfer reaction radiochemical separation 

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Copyright information

© Science in China Press 2002

Authors and Affiliations

  • Yuan Shuanggui
    • 1
  • Yang Weifan
    • 1
  • Xu Yanbing
    • 1
  • Xiao Yonghou
    • 1
  • Luo Yixiao
    • 1
  1. 1.Institute of Modern PhysicsChinese Academy of SciencesLanzhouChina

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