Influence of the crystal-surface roughness on the angular spread of x-ray diffracted beam

0134615 - FZU-D 20030515 RIV US eng C - Conference Paper (international conference)
Hrdá, Jaromíra - Hrdý, Jaromír - Hignette, O. - Hoszowska, J.
Influence of the crystal-surface roughness on the angular spread of x-ray diffracted beam.
0-8194-5068-5. In: Crystals, Multilayers and Other Synchrotron Optics. Bellingham: SPIE, 2003 - (Ishikawa, T.; Macrander, A.; Wood, J.), s. 109-114. Proceedings of SPIE., 5195. ISSN 0277-786X.
[Crystals, Multilayers, and Other Synchrotron Optics. San Diego (US), 05.08.2003-07.08.2003]
R&D Projects: GA MŠMT OC P7.001; GA AV ČR IAA1010104
Institutional research plan: CEZ:AV0Z1010921
Keywords : diffractive-refractive optics * asymmetric diffraction * incident diffraction
Subject RIV: BH - Optics, Masers, Lasers

One of the factors influencing the focus size in diffractive-refractive optics is the quality of diffracting surface. If the surface is uneven, then the diffraction at each point of the surface is a combination of an asymmetric and inclined diffraction. This some what deviates and spreads the diffracted beam. It is shown that in some cases the etched surface may create the spread of the diffracted beam,such that it causes a significant broadening in the focus.
Permanent Link: http://hdl.handle.net/11104/0032511