The hbt radius parameters and the hbt - parameters of single gaussian source and double gaussian source are investigated by using two - pion correlation function in hbt intensity interferometry 摘要利用理想高斯源的两粒子关联函数,对单高斯源和双高斯源的两介子hbt关联效应进行了研究,得出了相应的半径参数和参数。