X-ray focusing by polycapillary arrays
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The effect of x rays focusing by polycapillary arrays is investigated both theoretically and experimentally. Radiation concentration is a result of 1 - 2 reflection in straight polycapillaries. The focusing picture depends greatly on the form of channels cross-section (circular, hexagonal, or square). Conditions for maximum energy concentration are discussed. Results of numerous experiments on polycapillaries with circular and hexagonal channels are presented.