Angular coverage is achieved through wide sensors, as well as a frame rate that supports fast scanning modes. Laboratory diffractometers, meanwhile, operate with Mo or Ag X-ray sources and combine them with area EIGER2 detectors or linear MYTHEN2 systems. The calculated normalized total powder diffraction pattern is transferred into the PDF via the sine Fourier transform. The new algorithm calculates the PDF by a detour via reciprocal space. Featuring no image lag and no afterglow, these detectors provide an opportunity to take static and dynamic measurements up to 100 keV. A fast and exact algorithm to calculate the powder pair distribution function (PDF) for the case of periodic structures is presented. However, with the rise of beamlines that use high X-ray energies, the focus has shifted to large-area pixel detectors with a CdTe sensor, which offers high efficiency for hard X-rays. One of the first photon-counting detectors that were employed for this task was a MYTHEN model, due to its ability to build multi-modular systems (wide angular coverage), its 50-μm strip (resolution), its high dynamic range, and its efficiency at moderately high energies. Pair distribution function (PDF) analysis, which takes into account both Bragg scattering and diffuse scattering, can probe structures of both crystalline and. Powder X -ray Diffraction (PXRD) and Pair Distribution Function (PDF) analysis are well- established techniques for investigation of atomic configurations in ine materialscrystall, and the two are related by a Fourier transformation. The pair distribution function describes the distribution of distances between pairs of particles contained within a given volume. One of the major requirements for obtaining high-quality data through Pair Distribution Function Analysis is a detector that covers a wide Q-range via a combination of wide angular coverage and utilization of high-energy X-rays.
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