Sliced multilayer gratings (SMG) based on Co/C multilayer coatings for the carbon window (4.4-5 nm)

摘要

Two samples of the new type of X-ray spectral elements--sliced multilayer grating (SMG) for 4.4-5 nm interval based on Co/C multilayer coatings have been produced and tested. A novel experimental approach based on a flow proportional counter was introduced and used to measure diffraction efficiency of SMG gratings. Spectra of Al discharge plasma were obtained with one of the SMGs. The properties of the SMG gratings are discussed.