Na原子能量自囚禁的加速效应

Acceleration Effect of Sodium Atoms Due to Radiation Trapping

采用高分辨激光光谱方法 ,在较高温度条件下 ,实验观察到Na原子能量自囚禁加剧特征。出现原子加速的光谱行为 ;并导致零速度原子碰撞转移到高激发态的速度减少。从原子内能碰撞转移的角度 ,分析了原子速度分布变异的机理。

The character of heavily radiation trapping which caused the acceleration of atoms was observed at high temperature via high-resolution laser spectroscopy technique. The acceleration of atoms caused the energy transfcr ratc diminishes of zero velocity atoms. From the view of energy transfer, the change of atom velocity distribution was analyzed.