![]() The incident X-ray beam fully penetrates, and is transmitted through, the sample with only moderate attenuation. Transmission geometry requires samples that are sufficiently transparent for the type of X-rays used. Material: BorosilicateĪdvantages of transmission-mode powder diffraction Transmission GeometryĪvailable capillaries in the facility are (Diameter): 0.3mm, 0.5mm, 0.7mm. X’pert Pro MPD Theta-Theta system in reflection Bragg-Brentano geometry for powder measurements. Crystal structure determination performing Rietveld refinements.Quantitative phase analysis in organic and inorganic compounds.Identification of crystalline phases in organic and inorganic compounds.The main powder analysis applications for the Bragg-Brentano Geometry are: Available Software: X’pert Data Collector, X’pert Data Viewer, X’pert Highscore, X’pert EasySAXS.Diffracted PreFIX Module: X’Celerator lineal Detector.Incident PreFIX Module: Fixed divergence slit holder Focusing X-ray Mirror for Cu Κα.Geometry: Bragg-Brentano (θ-θ system, vertical goniometer).The detector used is an X’Celerator which is an ultra-fast X-ray detector based on Real Time Multiple Strip (RTMS) technology. The X-ray source is a ceramic X-ray tube with Cu Κα anode (λ=1.540 Å). This equipment has an automatic sample changer with 15 position sample magazines to scan several samples in a programmable mode. In the standard configuration (reflection Bragg-Brentano geometry), the sample is kept horizontal during the measurements, suitable for large/heavy samples. MPD allows different geometries configurations: This diffractometer has a vertical theta-theta goniometer (240 mm radius), where the sample stage is fixed and does not rotate around omega axis as in omega-2theta diffractometers. The MPD (Materials Powder Diffractometer) is suitable for the analysis of polycrystalline samples at room temperature. ![]()
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