SHADOW: A synchrotron radiation and X-ray optics simulation tool

Abstract We announce the release of SHADOW 2.0 - the computer ray-tracing program widely used in the synchrotron radiation community. We discuss new physical models and system extensions recently introduced. The physical models added are capillaries and Kumakhov lenses, general compound mirrors, and transmission crystals. We have extended the base of operating systems available to SHADOW users, overhauled the UNIX graphics, and written a MENU mode for UNIX. We also discuss new physical models in progress - a shaped absorber, segmented mirrors, and extensions to higher orders in the polynomial calculations.