| Abstract: | The energy flows of the X-ray waves, diffracted in thick crystals in double-field approximation, have been examined. It has been demonstrated that in a symmetric Laue case the energy flows in the upper layers are oriented in the direction of incidence and reflection, whereas in the lower layers they are oriented in the direction of the normal to the entrance surface of the crystal. The formation of pendular bands during diffraction of X-rays in thick parallelepiped and wedge-shaped crystals has been investigated. A method for obtaining pendular bands from such crystals is described. |
