摘要
本文从矢量模型出发，导出纯ｊｊ耦合下ｇ因子表达式，并证明了当近似取ｇｓ＝２时，该式等价于量子力学的ｇ因子矩阵略去非对角元的结果，说明了矢量模型的近似程度。
The g-factor under pure jj coupling condition have been derived from the semiclassical Vector model.The result in the approximation gs=2, equals to the cliagonal elements of the g-factor matrix arising from quantum mechanics, and the accuracy of the vector model have been discussed by p2 configuratior.
