Beta and Gamma Spectroscopic Studies of 125Sb

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概要

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• The decay of 125Sb was investigated by using a Ge(Li) detector, NaI(Tl) and plastic scintillators. The decay scheme proposed by Mazets and Sergeenkov was confirmed. By combining the Ge(Li) data and their internal-conversion data, the K-conversion coefficients of all the gamma rays observed were deduced. Multipolarities of the 111.0, 172.0, 204.3, 208.9, 320.9 and 379.5 keV transitions were determined by the analysis of the re-measured gamma-gamma directional correlations. The 320.9, 117.3 and 111.0 transitions were found to have predominantly $E1$ contents that are "$j$-forbidden" in the $j$-$j$ coupling scheme. The 444 keV beta–176.7 keV gamma delayed coincidences were measured and the half-life of the 321.1 keV state (9/2-) was found to be ($8.7\pm 0.8\times 10^{-10}$ sec. This infers that the 321.1 keV state has a significantly enhanced $E2$ transition moment. The experimental results obtained are compared with the theoretical predictions based on the pairing-plus-quadrupole force, the particle-plus-phonon, and the rational models.

• Physical Society of Japanの論文
• 1968-01-05

著者

• Inamura Takashi

  Department Of Agricultural Chemistry Faculty Of Agriculture Shimane University

• Inamura Takashi

  Department of Physics, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo

関連論文

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• Lifetime of the 321keV Level in ^125
• Docay of Eu^
• Gamma-Gamma Angular Correlations in Sb^
• Decay of Ce^
• Beta and Gamma Spectroscopic Studies of 125Sb

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