Study on KC1 Colorated Center Doped with Na+ Crystal by Positron Annihilation

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HUANG Mao-Rong, GU Hua, WANG Yun-Yu, HE Yong-Shu, YANG Ju-Hua, LIN Jian-Ming and XU Cheng-Huang. Study on KC1 Colorated Center Doped with Na+ Crystal by Positron Annihilation[J]. Chinese Physics C, 1991, 15(2): 97-102.
HUANG Mao-Rong, GU Hua, WANG Yun-Yu, HE Yong-Shu, YANG Ju-Hua, LIN Jian-Ming and XU Cheng-Huang. Study on KC1 Colorated Center Doped with Na+ Crystal by Positron Annihilation[J]. Chinese Physics C, 1991, 15(2): 97-102. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Study on KC1 Colorated Center Doped with Na+ Crystal by Positron Annihilation

    Corresponding author: HUANG Mao-Rong,
  • Institute of High Energy Physics,Academia Sinica,Beijing 1000391 Institute of Physical-Chemical Material,Huachiao University,Quanzhou 362000

Abstract: The relation of the live times and S parameters with doped quantities of Na+ have been studied by positron annihilation method in pure,colourable and irradiant KC1 single crystals,The results show that the concentration of vacancies of KC1 doped with 800ppm Na+ is 4.24×1017/cm3.It is close to that of the pure KC1 crystal.The obvious F centers exist in the colorated crystal.The S parameters are mainly influenced by the external electrons of halide ions.Mechanism of annihilation of KC1 crystal doped with Na+ has been discussed.

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