摘要
由激光等离子体反应产生的原子簇分子与离子，经历了分子-离子反应的过程．本文尝试将Smoluchowski方程加以扩展，用于描述原子簇离子的生成过程．通过应用解析方法，求解不可逆聚合过程的动力学方程，推导出了原子簇离子统计分布的函数关系式，证实了实验中观察到的原子簇的统计分布规律．
A statistical distribution model was summarized for the cluster ions generated from laser vaporization. In this paper, a distribution funetion has been deduced for the laser generated cluster ions. To deduce the equation, kinetic equations were presented for the cluster ions based on ion-molecular reactions, the Smoluchowski equation was extended to described the reaction, and an irreversible aggregation process was assumed in which all charged and neutral cluster species have equal aggregation rate constant. Distribution of the deduced equation is shown to agree very well with the statistical size distributionof cluster ions observed in experiments.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1996年第8期735-740,共6页
Acta Physico-Chimica Sinica
基金
国家杰出青年科学基金
