高能带电粒子库仑对数量子力学效应研究  

Quantum mechanical effects on Coulomb logarithm for high energy particles

作　　者：李承跃[1] 邓柏权[2] 彭利林[2] 

机构地区：[1]电子科技大学物理电子学院,成都610054 [2]核工业西南物理研究院,成都610041

出　　处：《强激光与粒子束》2007年第7期1226-1228,共3页High Power Laser and Particle Beams

基　　金：国家自然科学基金资助课题(19085003);国家自然科学基金重点资助课题(19889502)

摘　　要：先进燃料D-3He聚变产生的高能带电粒子在本底等离子体中慢化时间的准确性直接影响到能量平衡和高能离子压强的计算结果。结果表明:高能带电粒子与本底等离子体的离子相互作用的库仑对数量子力学效应明显。应使用高能带电粒子库仑对数力学效应来研究聚变产生的高能端部粒子慢化过程;能量大于等于25Zi2Z2tAtkeV的高能粒子与本底等离子体中离子的相互作用库仑对数最好也使用量子截断。For high energy particles produced in advanced fuel D-^3 He fusion reactions, the calculation accuracy of their slowing down time has a direct and notable impact on energy balance and pressure of high energy particles during the initial phase of thermalization processes in the background plasma. Analysis shows prominent Coulomb logarithm quantum mechanical effects of the reciprocity between the high energy particles and the ions of background plasma. It is better to make use of the proper Coulomb logarithm quantum mechanical effect at the high energy end in studying the particles＇ slowing process and take quantum truncation to process Coulomb logarithm of the reciprocity between the high energy particles and the ions of background plasma also, as energy is more than25Z^2iZ^2iAt keV.

关 键 词：高能带电粒子 库仑对数 量子力学效应 慢化 

分 类 号：O532.26[理学—等离子体物理] O532.11[理学—物理]