ISI Citation Indexes Help ------------------------------------------------------------------------ Search Results--Full Record Article 14 of 168 Previous record Next record Summary List Explanation ------------------------------------------------------------------------ Treatment of grazing-incidence small-angle X-ray scattering data taken above the critical angle Martorana A, Longo A, d'Acapito F, Maurizio C, Cattaruzza E, Gonella F JOURNAL OF APPLIED CRYSTALLOGRAPHY 34: 152-156 Part 2 APR 1 2001 Document type: Article Language: English Cited References: 8 Times Cited: 0 Abstract: The equations taking into account refraction at the sample surface in grazing-incidence small-angle X-ray scattering (GISAXS) when the angle between the incoming beam and the sample surface is slightly larger than the critical angle are derived and discussed. It is demonstrated that the refraction of both the incoming and the scattered beam at the sample surface affects the GISAXS pattern and that, when a planar bidimensional detector perpendicular to the incoming beam is used, the effect depends on the azimuthal detector angle. The smearing of the pattern depending on the size of the illuminated sample area in grazing incidence is estimated by simulations with Cauchy functions of different widths. The possibility of integrating the recorded intensities over a suitable azimuthal angular range and then of making the correction for refraction is also analysed, employing simulations involving the intensity function of monodisperse interacting hard spheres. As a case study, the refraction correction is applied to the investigation of a Cu-Ni implant on silica glass. KeyWords Plus: FILMS, CLUSTERS, GISAXS Addresses: Martorana A, Univ Palermo, Dipartimento Chim Inorgan, Viale Sci, I-90128 Palermo, Italy Univ Palermo, Dipartimento Chim Inorgan, I-90128 Palermo, Italy CNR, ICTPN, I-90146 Palermo, Italy INFM, F-38043 Grenoble, France European Synchrotron Radiat Facil, GILDA CRG, F-38043 Grenoble, France Univ Padua, Dipartimento Fis, I-35131 Padua, Italy Univ Padua, INFM, I-35131 Padua, Italy Univ Venice, INFM, I-30123 Venice, Italy Univ Venice, Dipartimento Chim Fis, I-30123 Venice, Italy Publisher: MUNKSGAARD INT PUBL LTD, COPENHAGEN IDS Number: 416PX ISSN: 0021-8898 ------------------------------------------------------------------------ Article 14 of 168 Previous record Next record Summary List ------------------------------------------------------------------------ Acceptable Use Policy Copyright © 2002 Institute for Scientific Information