Patent ID: 7329014
Filing Date: 2008-02-12
Classification: B82Y,G03F,G21K

Abstract:
1. A collector mirror for short-wavelength radiation sources based on a plasma, comprising: an optically active mirror surface with high reflectivity for desired short-wavelength radiation; means for managing the temperature of the mirror body being provided due to the position of the collector mirror in the immediate vicinity of the plasma which has an extremely high temperature; said collector mirror having a solid, rotationally symmetric substrate which comprises a material with high thermal conductivity of more than 50 W/mK; and channels for cooling and temperature management being incorporated in the substrate so that a heat transport medium can flow through directly for rapidly stabilizing the temperature of the optically active mirror surface at a defined level, wherein heat of transient temperature spikes which occur in pulsed operation for plasma generation and which temporarily exceed the temperature average prevailing at the mirror surface by a multiple is quickly dissipated.