Transmission geometry for X-ray diffraction can be a powerful method to analyze samples which pose problems in the traditional reflection mode geometry. These can include organic materials such as pharmaceuticals, proteins, and other low-Z materials such as polymers, powders prone to preferred orientation effects such as needles or platelets, liquid dispersions or slurries, air sensitive or hazardous materials, and samples requiring low angle diffraction, such as clays or mesoporous materials. X-ray analytical techniques that make use of a transmission geometry require samples that are sufficiently transparent for the type of X-rays used, and mounting samples for experiments can be done via confinement e.g. between thin polymer foils or in a capillary, or as free-standing objects. 
This webinar will highlight the benefits of this geometry for challenging samples, with some side by side comparisons of data with traditional reflection geometry, and also talk about a host of applications where this geometry is essential, such as transmission texture, pair distribution function (PDF), small angle X-ray scattering (SAXS) and computed tomography (CT).