J Mater Sci Technol ›› 2000, Vol. 16 ›› Issue (03): 311-314.

• Research Articles • Previous Articles     Next Articles

Effects of positron diffusion and its application in composite system

Jian JIANG, Xinzhang ZHOU, ChiWei LUNG   

  1. International Center for Materials Physics, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China
  • Received:1999-10-30 Revised:1999-03-22 Online:2000-05-28 Published:2009-10-10
  • Contact: ChiWei LUNG

Abstract: The effects of positron diffusion on the measured S parameter have been investigated by a point-source diffusion model and a delta function method. Firstly, the theoretical analyses of the effects are presented for the samples of a homogeneous semi-infinite medium and a film of definite thickness. Then the results are used to analyze the S parameters in several composite systems and interface models.

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