1. The production-aperture x-ray spectra with the help of concave crystals;Johann,1931
2. A novel, accurate-focusing X-ray spectrometer;Johansson,1933
3. A perfect crystal X-ray analyser with meV energy resolution;Masciovecchio,1996
4. X-ray monochromator with 2×10(-8) energy resolution;Verbeni;J. Synchrotron Radiat.,1996
5. An inelastic X-ray spectrometer with 2.2;Sinn,2001