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论文类型：期刊论文

发表时间：2010-10-01

发表刊物：PLASMA SCIENCE & TECHNOLOGY

收录刊物：SCIE、EI、Scopus

卷号：12

期号：5

页面范围：581-584

ISSN号：1009-0630

关键字：high-intensity pulsed ion beam; double-layer target; temperature fields; numerical method

摘要：Interaction between high-intensity pulsed ion beam (HIPIB) and a double-layer target with titanium film on top of aluminum substrate was simulated. The two-dimensional nonlinear thermal conduction equations, with the deposited energy in the target taken as source term, were derived and solved by finite differential method. As a result, the two-dimensional spatial and temporal evolution profiles of temperature were obtained for a titanium/aluminum double-layer target irradiated by a pulse of HIPIB. The effects of ion beam current density on the phase state of the target materials near the film and substrate interface were analyzed. Both titanium and aluminum were melted near the interface after a shot when the ion beam current density fell in the range of 100 A/cm(2) to 200 A/cm(2).