X-RAY MONOCHROMATORS AND RESONATORS FROM SINGLE CRYSTALS

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Abstract
Single‐crystal specimens shaped so as to permit successive x‐ray diffraction by two nonparallel atomic planes are fixed wavelength monochromators. It is shown that certain plane pairs in Si and Ge pass wavelengths sufficiently close to strong characteristic lines to allow production of intense highly monochromatic beams. For tautozonal planes belonging to the same crystal form, resonators and retroreflectors are possible.