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 Results for DC.creator="A." AND DC.creator="Fitch" in section 2.2.3 of volume H
Compound refractive lens
Fitch, A.  International Tables for Crystallography (2018). Vol. H, Section 2.2.3.3, p. 56 [ doi:10.1107/97809553602060000937 ]
... lens 2.2.3.3. Compound refractive lens The refractive index n of a material for X-rays is given (Gullikson, 2001 ; Spiller, 2000 ... order 10-6-10-9 depending on the energy. Thus a hole drilled in a piece of metal can act like a conventional convex ...

Mirror
Fitch, A.  International Tables for Crystallography (2018). Vol. H, Section 2.2.3.2, pp. 55-56 [ doi:10.1107/97809553602060000937 ]
... of the already highly collimated beam, and to act as a high-energy filter for photons with energies above a certain value, e.g. to remove higher-order wavelengths transmitted by the monochromator. Usually reflecting in the vertical plane, a mirror consists of a highly polished substrate (e.g. Si) ...

Monochromator
Fitch, A.  International Tables for Crystallography (2018). Vol. H, Section 2.2.3.1, pp. 54-55 [ doi:10.1107/97809553602060000937 ]
Monochromator 2.2.3.1. Monochromator The monochromator is a crucial optical component in any angle-dispersive powder-diffraction beamline, and consists of one or a pair of perfect crystals (e.g. Beaumont & Hart, 1974 ), Fig. 2.2.7 , set to a particular angle to the incident beam, [theta]m, that ...

Optics
Fitch, A.  International Tables for Crystallography (2018). Vol. H, Section 2.2.3, pp. 54-56 [ doi:10.1107/97809553602060000937 ]
... and the desired wavelength is chosen from the source by a monochromator. A monochromator consists of a perfect crystal, or a pair of crystals, set to ...

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