Реферат: Radiographic methods are widely used in advanced fundamental research in the field of materials science, geology, study of the extreme state of matter, and medical studies of the internal organs of patients. In radiography, the quality of radiation sources and detectors is of great importance. The use of microfocus X-ray tubes with a focal spot size of up to several micrometers is a way to achieve high spatial resolution. However, this limits the power and increases the exposure time. In addition, microfocus tubes tend to rapidly degrade. It is believed that the spatial resolution of images can be improved due to use of pulsed X-ray machines with a focus size of 2 to 5 mm and correction of the wavefront propagation patterns. An image recorded on an X-ray film, a memory screen, or a CCD matrix is generally blurred because of divergence of the original radiation flux and scattering in the sample material and in the X-ray sensitive material of the detector. Using anti-scattering X-ray grids in experiments will improve the signal-to-noise ratio, increase the spatial resolution, and reduce the unwanted scattered radiation.

Библиографическая ссылка: Goldenberg B.G. , Dolgikh A.V. , Lemzyakov A.A. , Nazmov V.P. , Palʹchikov E.I.
LIGA Method of Forming High–Contrast Collimators and Anti–scatter Grids with a High Aspect Ratio for Improving the Spatial Resolution of X-ray Images
International Conference on Electron, Positron, Neutron and X–Ray Scattering under External Influences & International School named after G. A. Askaryan 16-22 Oct 2017