skip to main content

Title: Problems in measuring diffuse X-ray scattering

Problems encountered in making measurements of diffuse X-ray scattering are discussed. These generally arise from the need to measure very weak scattering in the presence of very strong scattering (Bragg peaks) using multi-detectors of various kinds. The problems are not confined to synchrotron experiments but may even occur using a tube source in the home laboratory. Specific details are given of experiments using 80.725 keV X-rays and a mar345 Image Plate detector on the 1-ID beamline of XOR at the Advanced Photon Source. In these a severe ‘blooming’ artefact which occurred around some strong Bragg peaks was traced to fluorescence from a steel mounting plate in the detector when strong Bragg peaks were incident. Algorithms developed to remove these artefacts from the data are described.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
898713
DOE Contract Number:
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Zeitschrift fuer Kristallographie. Crystalline Materials; Journal Volume: 220; Journal Issue: 12
Research Org:
Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US); Australian Nat. Univ.
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; DIFFUSE SCATTERING; X-RAY DIFFRACTION; MEASURING METHODS advanced photon source