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THE SECTION TOPOGRAPHY OF SYNCHROTRON RADIATION (SST) ON THE CRYSTAL OF POTASSIUM ACID PHTHALATE (KAP)

ZHAO QING-LAN

THE SECTION TOPOGRAPHY OF SYNCHROTRON RADIATION (SST) ON THE CRYSTAL OF POTASSIUM ACID PHTHALATE (KAP)

ZHAO QING-LAN
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  • Received Date:  19 March 1987
  • Published Online:  06 July 2005

THE SECTION TOPOGRAPHY OF SYNCHROTRON RADIATION (SST) ON THE CRYSTAL OF POTASSIUM ACID PHTHALATE (KAP)

  • 1. 中国科学院福建物质结构研究所

Abstract: The defect imaging contrast on the section topographs for the crystal of potassium acid phthalate (KAP) has been studied, using the synchrotron radiation. The experimental results show that the diffraction contrast due to defects in the crystal is considerably increased with the wavelength increasing in a certain range The dynamical theory of X-ray diffraction for homogeneously deformed crystals with average values of the strain gradient parameter βis taken to interpret the experimental results, for which the factor β teff plays an important role in the defect imaging contrast formation We propose that it is possible to choose an appropriate wavelength of synchrotron radiation which could give out higher diffraction contrast for defects in crystals.

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