多晶在非轴对称梯度下的电四极相互作用(I=4)计算

THE CALCULATION OF NON-AXIALLY SYMMETRIC ELECTRIC QUADRUPOLE INTERACTION FOR SPIN-FOUR NUCLEI IN POLYCRYSTALLINE SOURCES

中间态自旋I=4的放射性核探针,在多晶样品中的非轴对称电四极相互作用,其相互作用频率和扰动函数,与惯常使用的I=5/2核探针的情况不同,为了了解和分析I=4的核探针的扰动角关联(PAC)实验,计算了相互作用哈密顿量的本征值、本征函数,从而得出了电场梯度非轴对称系数η≥0下的扰动衰减系数G_(KA)(t)。

For non--axially symmetric electric quadrupole interactions of radioactive nuclei in a polycrystallinesource, the interaction frequencies and perturbation functions for spin--four are quite different fromthose for the coventional spin--five--halves nuclei. Therefore, for understanding and analyzing PerturbedAngular Correlation (PAC) experiments that use spin--four probe nuclei, we calculated the energyeigenvalues, the eigenvectors and consequentely the perturbation functions G_(kk)(t) for η≥0, l = 4. Thenumerical results of these calculations are presented.