Soft X-Ray Optical Constants: Pt, Ag, and Cu

Abstract
The optical constants of Pt, Ag, and Cu in the soft X-ray region (100-1200 eV) derived from the reflectance method are reported. Samples were thickly deposited on substrates so that interference effects would be negligible. Using Debye-Waller and constant factors we could explain the angular dependence of the specular reflection of the soft X-rays from conventionally-evaporated mirrors.