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Numerical study on the evolution of temperature of double-layer target irradiated by high power ion beam

Wu Di Gong Ye Liu Jin-Yuan Wang Xiao-Gang Liu Yue Ma Teng-Cai Lei Ming-Kai

Numerical study on the evolution of temperature of double-layer target irradiated by high power ion beam

Wu Di, Gong Ye, Liu Jin-Yuan, Wang Xiao-Gang, Liu Yue, Ma Teng-Cai, Lei Ming-Kai
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  • Received Date:  12 July 2008
  • Accepted Date:  21 November 2009
  • Published Online:  15 July 2010

Numerical study on the evolution of temperature of double-layer target irradiated by high power ion beam

  • 1. (1)College of Physical Science and Technology, Dalian University, Dalian 116622, China; (2)Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116024, China; (3)Surface Engineering Laboratory, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China

Abstract: The interaction between high power ion beam and the double-layer target system consisting of Ti film and Al substrate was simulated by TRIM Code. The evolution of energy distribution in the double-layer target irradiated by high power ion beam (HPIB) was obtained. Using the deposited energy in the target as the thermal source term in the nonlinear thermal conduction equations, finite differential method was used to solve the equations. And one-dimensional spatial and temporal evolution of the temperature of the Ti/Al double-layer target irradiated by HPIB during a pulse was obtained. The effect of the ion beam current density on the phase state of the film substrate interface was analyzed. The results show that both Ti and Al are melted at the interface when the ion beam current density is between 100 and 200 A·cm-2.

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