中国物理B ›› 2006, Vol. 15 ›› Issue (11): 2682-2687.doi: 10.1088/1009-1963/15/11/037

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Two-dimensional numerical research on effects oftitanium target bombarded by TEMP II accelerator

吴迪, 宫野, 刘金远, 王晓钢, 刘悦, 马腾才   

  1. State Key Laboratory of Materials Modification by Laser,Ion and Electron Beams, Dalian University of Technology, Dalian 116024, China
  • 收稿日期:2005-07-08 修回日期:2005-11-21 出版日期:2006-11-20 发布日期:2006-11-20

Two-dimensional numerical research on effects oftitanium target bombarded by TEMP II accelerator

Wu Di(吴迪)†, Gong Ye(宫野), Liu Jin-Yuan(刘金远), Wang Xiao-Gang(王晓钢), Liu Yue(刘悦), and Ma Teng-Cai(马腾才)   

  1. State Key Laboratory of Materials Modification by Laser,Ion and Electron Beams, Dalian University of Technology, Dalian 116024, China
  • Received:2005-07-08 Revised:2005-11-21 Online:2006-11-20 Published:2006-11-20

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摘要： Two-dimensional numerical research has been carried out on the ablation effects of titanium target irradiated by intense pulsed ion beam (IPIB) generated by TEMP II accelerator. Temporal and spatial evolution of the ablation process of the target during a pulse time has been simulated. We have come to the conclusion that the melting and evaporating process begin from the surface and the target is ablated layer by layer when the target is irradiated by the IPIB. Meanwhile, we also obtained the result that the average ablation velocity in target central region is about 10\,m/s, which is far less than the ejection velocity of the plume plasma formed by irradiation. Different effects have been compared to the different ratio of the ions and different energy density of IPIB while the target is irradiated by pulsed beams.

关键词: intense pulsed ion beam, two-dimensional numerical model, ablation process, titanium

Abstract: Two-dimensional numerical research has been carried out on the ablation effects of titanium target irradiated by intense pulsed ion beam (IPIB) generated by TEMP II accelerator. Temporal and spatial evolution of the ablation process of the target during a pulse time has been simulated. We have come to the conclusion that the melting and evaporating process begin from the surface and the target is ablated layer by layer when the target is irradiated by the IPIB. Meanwhile, we also obtained the result that the average ablation velocity in target central region is about 10 m/s, which is far less than the ejection velocity of the plume plasma formed by irradiation. Different effects have been compared to the different ratio of the ions and different energy density of IPIB while the target is irradiated by pulsed beams.

Key words: intense pulsed ion beam, two-dimensional numerical model, ablation process, titanium

中图分类号:  (Plasma-material interactions; boundary layer effects)

  • 52.40.Hf
52.25.Kn (Thermodynamics of plasmas) 52.25.Tx (Emission, absorption, and scattering of particles) 52.65.-y (Plasma simulation) 52.70.Nc (Particle measurements) 52.77.Dq (Plasma-based ion implantation and deposition)