Point-focusing monochromator crystal realized by hot plastic deformation of a Ge wafer

Pre-polished Ge(111) single-crystal wafers were deformed just below the melting temperature to prepare point-focusing Johansson monochromator crystals. The (111) lattice plane had curvature 2R in the focusing plane and R perpendicular to it, with a hemispherical inner surface with a radius of R = 60...

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Detalles Bibliográficos
Autores principales: Okuda, Hiroshi, Nakajima, Kazuo, Fujiwara, Kozo, Morishita, Kohei, Ochiai, Shojiro
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2008
Materias:
Short Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2483481/
https://www.ncbi.nlm.nih.gov/pubmed/19461843
http://dx.doi.org/10.1107/S0021889808016282
Descripción
Sumario:Pre-polished Ge(111) single-crystal wafers were deformed just below the melting temperature to prepare point-focusing Johansson monochromator crystals. The (111) lattice plane had curvature 2R in the focusing plane and R perpendicular to it, with a hemispherical inner surface with a radius of R = 600 mm. By using Cu Kα radiation, the diverging X-ray beam was focused onto a small spot.

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