4th Meeting X-ray techniques in investigations of the ... - CrysAC

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2D MICRO-DIFFRACTION USING PIXcel 3D Szymon Stolarek PA�alytical B.V. �półka z o. o.� Oddział w Polsce� �arsaw� Poland The unique capabilities of the PIXcel 3D detector allow micro-di�raction experiments with 2D detection capability on multi-purpose di�ractometers, without the need to switch to other detectors for conventional powder di�raction measurements or high resolution applications. Using 2D detection system in micro-di�raction experiments, the di�racted beams appear as arc, known as Debye rings. The rings provide the user with an instant window to the microstructure of the sample giving hints about the homogeneity of the sample (mapping experiment), the grain size and orientation distributions. Additionally, 2D micro-di�raction gives In scanning measurements, the information from the 2D frames is summed up as a function of 2theta to provide a 2theta strip file. By integrating along the arcs in information about the phase composition in sub-mm 2 spots in solid objects. In a polycrystalline sample, only those grains that have the right orientation to the incident beam will meet Bragg’s law and generate a di�racted beam. In micro-di�raction experiments, these di�racted beams originate form a small spot an fan out around the incident beam direction forming a cone with half angle 2theta. The 2D detector intercepts the cone of di�racted rays. An arc is formed on the detector. This arc is called a Debye ring. Even if there are very few crystals di�racting and isolated spots are observed the spots due to di�raction by the same set of planes will be positioned on the ring. Depending on the crystallite size, the ring can be anything between smooth and spotty, with a single crystal being the most extreme case. the strip file, one can obtain a conventional one-dimensional measurement, which can be used for further analysis, e.g. in HighScore (Plus). 33
Transmission and reflection measurements near the primary beam. The PIXcel 3D detector allows di�ractionists to switch from conventional 1D to scanning and static 2D measurements without having to switch to a di�erent detector or instrument. In the 2D mode, one can freely optimize between resolution and field of view simply by varying 34 the detector-to-sample distance. Thanks to the solid-state detection technology, these changes can be made without the need for calibration by the user. The very high dynamical range of the detector allows measurements near the direct beam without the need of a direct beam stop.
Page 1 and 2: 4 th Meeting X-ray techniques in in
Page 3 and 4: Sponsors PANalytical B.V. Branch Of
Page 5 and 6: Programme May 17, Thursday 8.00 - 1
Page 7 and 8: Afternoon session Chair: Grażyna K
Page 9 and 10: ABSTRACTS ORAL PRESENTATIONS
Page 11 and 12: SCIENCE FOR THE CULTURAL HERITAGE:
Page 13 and 14: NEUTRON IMAGING TECHNIQUES AS AL- T
Page 15 and 16: exhibition space or storage room. X
Page 17 and 18: 2D ELEMENTAL MAPPING WITH MOBILE XR
Page 19 and 20: NON-INVASIVE INVESTIGATIONS OF PAIN
Page 21 and 22: that thus allow to visualize these
Page 23 and 24: NON-DESTRUCTIVE X-RAY ANALYSIS OF P
Page 25 and 26: STUDIES OF A SET OF EARLY MODERN PO
Page 27 and 28: THE COMPUTED TOMOGRAPHY OF THE 15 T
Page 29: SZCZERBIEC (THE JAGGED SWORD) - THE
Page 33 and 34: ABSTRACTS POSTERS
Page 35 and 36: X-RAY POWDER MICRO-DIFFRACTION IN-
Page 37 and 38: XRPD INVESTIGATIONS OF THE ANCIENT
Page 39 and 40: TIN AND TINNED DRESS ACCESSORIES OF
Page 41 and 42: X-RAY POWDER DIFFRACTOMETRY IN INVE
Page 43 and 44: 1. Matthias Alfeld Center for Micro
Page 45 and 46: 25. Marta Grzesiak The Jerzy Haber
Page 47 and 48: 49. Janusz Lekki The Henryk Niewodn
Page 49 and 50: 73. Ina Reiche Centre de Recherche
Page 51 and 52: 97. Dominika Tarsinska-Petruk Natio
Page 53 and 54: Graphic design and print preparatio

4th Meeting X-ray techniques in investigations of the ... - CrysAC

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