Synchrotron Radiation White Beam Topography with an Oscillating Monochromator

Article type: Research Article

Authors: Graeff, W. | Wieteska, K.

Affiliations: Hamburger Synchrotronstrahlungslabor HASYLAB at DESY, Hamburg, Germany | II Inst. für Experimentalphysik, Universität Hamburg, Hamburg, Germany (on leave from Institute of Atomic Energy, Swierk, Poland)

Abstract: Drawbacks of white beam topography with synchrotron radiation, such as intense fluorescence background, thermal strain, and radiation damage, can be avoided by filtering the beam with an oscillating perfect crystal monochromator. The advantage of the white beam technique, namely the imaging of a sample of poor quality, is maintained. The image contrast is even improved due to the suppression of higher harmonics. Topographs of a LiF crystal demonstrate the feasibility of the method.

DOI: 10.3233/XST-1992-3206

Journal: Journal of X-Ray Science and Technology, vol. 3, no. 2, pp. 152-156, 1992