中文摘要：

对SrAl12O19：Pr^3＋中4f^2→4f^2电偶极跃迁强度的参量化进行了研究．考虑明确的4f5d组态成分与4f^2跃迁能级混杂对4f^2组态内跃迁的影响．引入新的强度参数死，参数值由5^Po能级的相关实验数据拟合．利用拟合的参数乃，和T53计算。1^So向下各能级发射的跃迁强度，计算值与实验及Judd-Ofek理论的结果进行了比较．

英文摘要：

Intensity parametrization of the electric dipole transitions within 4f^ 2 configuration of Pr3^ ＋ in SrAl12 O19 are reported, in which the mixing of the 4f^2 transitional states with the explicit 4fSd states is taken into account. A new set of phenomenological intensity parameters, Tkq, are put forward, which are obtained from a best fit of the calculated and measured relative intensities of transitions from the 3^P0 level to the lower J muhiplets. The fitted values, T33 = 3.26 × 10^-5 and T53 = - 5.46 × 10^-5 , have been used to analyze the transitions originating from the 1^So level. The present results are compared with that of the Judd-Ofeh analysis and the experimental measurements.