A soller slit is disclosed, which includes a plurality of metal foils and functions to restrict divergence of X-rays when arranged on an X-ray optical path. The metal foils are prepared by sintering a metal material such that surface thereof have high harmonic surface roughness. Alternatively, the metal...http://www.google.com/patents/US6266392?utm_source=gb-gplus-sharePatent US6266392 - Soller slit and manufacturing method of the same
