Capillary-based x-ray filters

The results of computer simulation and experimental investigation of different capillary-based filters are presented. Filters with multiple reflections in polycapillaries, filters with single reflections, combinations of capillary structures with crystals and conventional x-ray absorption filters are considered. Capillary-based x-ray filters effectively suppress the high- energy part of radiation while the supplementary elements suppress the soft part of spectrum. The possibility of application of such filters in laboratory set-up and in synchrotron beam line is discussed.