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Open Access Publications from the University of California

Determination of the α -decay half-life of Po 210 based on film and slice bismuth samples at room temperature

  • Author(s): Zhao, QZ
  • Wang, XM
  • Wang, W
  • He, M
  • Dong, KJ
  • Xiao, CJ
  • Ruan, XD
  • Shen, HT
  • Wu, SY
  • Yang, XR
  • Dou, L
  • Xu, YN
  • Cai, L
  • Pang, FF
  • Zhang, H
  • Pang, YJ
  • Jiang, S
  • et al.

© 2015 American Physical Society. The α decay rate of Po210 was measured in a film sample (Po210@Bi2O3) and a slice sample (Po210@Bimetal), respectively. The former was used as a reference sample. The half-lives of Po210@Bi2O3 and Po210@Bi metal environments were observed to be (138.40±0.21d) and (138.87±0.87d) at room temperature, respectively. It was found that the half-life of Po210 is consistent with international recommendations within the uncertainty limits, and we did not find any deviation of the α decay rate of Po210 between film sample (Po210@Bi2O3) and slice sample (Po210@Bimetal).

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