Influence of gas mixture ratio on the secondary electron emission coefficient ($\gamma$) fo MgO single crystals and MgO protective layer in AC PDP

  • Lim, Jae-Yong (Department of Electrophysics, Kwangwoon University) ;
  • Jung, J.M. (Department of Electrophysics, Kwangwoon University) ;
  • Choi, M.C. (Department of Electrophysics, Kwangwoon University) ;
  • Ahn, J.C. (Department of Electrophysics, Kwangwoon University) ;
  • Cho, T.S. (Department of Electrophysics, Kwangwoon University) ;
  • Kim, T.Y. (Department of Electrophysics, Kwangwoon University) ;
  • Kim, S.S. (Department of Electrophysics, Kwangwoon University) ;
  • Jung, M.W. (Department of Electrophysics, Kwangwoon University) ;
  • Choi, S.H. (Department of Electrophysics, Kwangwoon University) ;
  • Kim, S.B. (Department of Electrophysics, Kwangwoon University) ;
  • Ko, J.J. (Department of Electrophysics, Kwangwoon University) ;
  • Kim, D.I. (Department of Electrophysics, Kwangwoon University) ;
  • Lee, C.W. (Department of Electrophysics, Kwangwoon University) ;
  • Seo, Y. (Department of Electrophysics, Kwangwoon University) ;
  • Cho, G.S. (Department of Electrophysics, Kwangwoon University) ;
  • Kang, S.O. (Department of Electrophysics, Kwangwoon University)
  • Published : 2000.04.22

Abstract

The secondary electron emission coefficient y of MgO single crystal according to the gas mix-ture ratio of Xe, $N_2$ to Ne have been investigated by $\gamma$-focused ion beam system. It is found that the MgO single crystals of (111) crystallinity has the highest $\gamma$ for operating Ne(Xe) ions ranging from 50eV to 200eV throughout this experiment. And it is found that the $\gamma$ for gas mixtures are much smaller than pure Ne ions.

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