The Action worked in the field of X-Ray and neutron interactions with solid surfaces and interfaces in order to develop fabrication and characterization methods for advanced innovative optical elements for applications in this extreme short wavelength range. The Action investigated new types of optical elements adapted to this energy range, and their efficiency and versatility. The target was not only the extention of the field of applications of very short wavelength optical elements on current x-ray and neutron sources but also the test of new fields opend now due to better characteristics of the more recent available and planned new sources.
