Title of article :
Precise analysis of the components of diffraction by cylindrical crystals
Author/Authors :
Yang، Z. نويسنده , , Hu، H.-C. نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
A detailed quantitative analysis of the various Bragg and Laue components of the integrated reflection power ratio for cylindrical crystals, and the dependence of these components on the Bragg angle, (theta)B, the reduced radius, (tau)0 = (sigma)0(rho), and the ratio of absorption coefficient to diffraction cross section, (mu)/(sigma)0 = (xi)0, is presented. The result indicates that the percentage of Laue and Bragg components of the integrated reflection power ratio is larger than 50% when (theta)B <=20(degree) and (mu)(rho)<=1, and when (theta)B=>10(degree) and (mu)(rho)=>5. The reflection power ratio profile for cylindrical crystals with large (mu)(rho)is also discussed.
Keywords :
X-ray diffraction , theory of diffraction , Extinction , cylindrical crystals , spherical crystals.
Journal title :
Acta Crystallographica Section A: Foundations of Crystallography
Journal title :
Acta Crystallographica Section A: Foundations of Crystallography