The Astatine Isotopes Produced in $He^3$ Bombardment of Bismuth

Bi를 $He^3$로 照射하였을때 生産되는 At 同位元素

  • 이익춘 (原子力硏究所 化學硏究室)
  • Published : 19630600

Abstract

The astatine isotopes produced in $He^3$ bombardment of bismuth were analysed with alpha ionization chamber and 100 channel pulse height analyser. The main product was $At^{209}$ formed by ($He^3$, 3n) reaction. Four other isotopes were also identified. Semi-quantitative calculation of relative yield of each isotope was attempted.

$Bi^{209}$ $를\;He^3$로 조사했을때 생긴 At 同位元素를 Alpha Ionization Chamber 및 100 Channel 파고분석기로 조사하였다. 주생성물은 ($He^3$, 3n) 반응으로 생기는 $At^{209}$였고, 그외에도 4종의 At同位元素를 얻었다. 各 同位元素상대적인 수량을 반정양적으로 계산하였다.

Keywords

References

  1. Phys. Rev. v.75 E.L. Kelly;E.Segre
  2. Phys. Rev. v.82 G.W. Barton, Jr.(et al.)
  3. J. Chem. Phys. v.17 G.L. Johnson(et al.)
  4. Prog. in Chem. and Chem. Industry v.3 no.1 Ikchoon Lee
  5. Can. J. Phys. v.35 B.G. Harvey(et al.)
  6. Modern Radiochemical Practice G.B. Cook;J.F. Duncan
  7. National Nuclear Energy Series v.14B The Transuranium Elements A. Ghiosso(et al.)
  8. The Atomic Nucleus R.D. Evans
  9. Rev. Sci. Instr. v.26 D.W. Engelkemeir(et al.)
  10. National Nuclear Energy Series v.14B The Transuranium Elements A. Ghiosso(et al.)