原子光谱线变宽的因素分析  

The Analysis of the Factors Leading to the Widening of the Atomic Spectrum Band.

作　　者：杨道生[1] 环敏[2] 欧朝芳[3] 

机构地区：[1]文山师范高等专科学校数理系,云南文山663000 [2]大理学院物理系,云南大理671000 [3]遵义师范学院物理系,贵州遵义563002

出　　处：《云南民族大学学报（自然科学版）》2006年第1期38-41,共4页Journal of Yunnan Minzu University:Natural Sciences Edition

摘　　要：分别从经典理论和量子理论的不同角度论述了使原子光谱线变宽的各种主要因素:由于能量的不确定关系导致的自然致宽;多普勒致宽;碰撞致宽;因碰撞过程中原子能级变化而导致的压力致宽、场致宽等.通过分析,阐明了实际光谱线与理想光谱线的不同及其原因.From the perspective of the classic theory and quantum theory, this paper discusses and analyzes various kinds of factors that lead to atomic spectrum band to be wided, which are uncertainty of energy measure inducing natural width; Doppler inducing width; collision inducing width;pressure inducing width eausedby atomic energy and changes in collision of lighting atoms, etc. It elaborates the difference between the real light spectrum band the ideal one, as well as causes.

关 键 词：谱线宽度 能量测不准 多普勒效应 能级变化 场致宽 

分 类 号：O562.3[理学—原子与分子物理]