强脉冲离子束辐照钛靶表面凹坑形成机理研究  

Mechanism of Craters Formed on Ti Surface Irradiated by High Intensity Pulsed Ion Beams

作　　者：由泳[1,2] 高明[1] 张罡[3] 沈新普[4] 万炳男[3] 

机构地区：[1]沈阳师范大学物理科学与技术学院,辽宁沈阳110034 [2]新民市高级中学物理组,辽宁沈阳110300 [3]沈阳理工大学中俄联合高能束流实验室,辽宁沈阳110168 [4]沈阳工业大学建筑学院,辽宁沈阳110023

出　　处：《沈阳师范大学学报（自然科学版）》2008年第4期414-417,共4页Journal of Shenyang Normal University:Natural Science Edition

基　　金：科技部国际科技合作重点项目(2004DFA04800)

摘　　要：计算了强脉冲离子束与钛靶相互作用的能量损失分布.H+与钛靶相互作用过程中的能量损失在钛靶内较深处,而C+在钛靶表面沉积较多的能量.束流含离子种类不同,入射靶材的深度及传给靶材的能量分布不同,对靶材将产生不同的作用效果.用ABAQUS有限元软件,以单元死活表征汽化材料的体加载方式对靶材钛进行不同能量参数的强流脉冲离子束辐照热效应的模拟计算.得到了强流脉冲离子束辐照金属表面的传热数据.通过分析,验证了模拟结果的合理性和凹坑形成的机理.Energy distributions were calculated when HIPIB interacted with Ti targets. In the process of interacting with Ti target, H^＋ energy loss in its inner. However, C^＋ disposition was much on the surface of Ti target. Different ions have different depths and different disposition and have different affection. Body Heat Flux Mode using Element removed and reactivated method is built to simulate the thermal effect of target Ti irradiated by HIPIB with different energy using the ABAQUS FEM （Finite Element Method） software. The thermal data of the metal surface irradiated by HIPIB is obtained. The experiment has proved the rationality of the simulated result and the mechanism of the craters formed.

关 键 词：强流脉冲离子束 能量分布 热效应 凹坑 

分 类 号：O532.26[理学—等离子体物理] TG156.99[理学—物理]