【摘要】 本文利用中间成象β谱仪研究了¹⁴⁷Nd的最大能量为896keV和804keV的两组β衰变。基态β跃迁（896keV）是唯一型一级禁戒跃迁,到¹⁴⁷Pm第一激发态的804keVβ跃迁为具有非容许型描绘的非唯一型一级禁戒跃迁,在C（W）=k（1+aW）表达式中的形状修正因子a=-0.24±0.04（m₀C²）^-1。两组β衰变的强度比是S（896）/S（804）=0.0026±0.0010,基态β跃迁的分支比估计为（0.22±0.10）％。更多还原

【Abstract】 The beta transitions with maximum energies of 896keV and 804keV in the decay of ¹⁴⁷Nd have been Studied with a Siegbahn-Slatis magnetic spectrometer. It is shown that the β spectrum Proceeding to the ground state of ¹⁴⁷Pm is unique first-forbidden, that the β spectrum feeding the first excited state of ¹⁴⁷Pm is nonunique first-forbidden with a shape correction factor a=-0.24±0.04 in the expression C（W）=k（l+aW）. The radio of the intensity of two beta transitions is S（896）/S（804）=0.0026±0.010,the intensity of the beta transition proceeding to the ground state of ¹⁴⁷Pm is found to be （0.22±0.10）％.更多还原