title: Point-focusing monochromator crystal realized by hot plastic deformation of a Ge wafer.
abstract: 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 Kalpha radiation, the diverging X-ray beam was focused onto a small spot.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Okuda
authors.forename: Kazuo
authors.initials: K
authors.lastname: Nakajima
authors.forename: Kozo
authors.initials: K
authors.lastname: Fujiwara
authors.forename: Kohei
authors.initials: K
authors.lastname: Morishita
authors.forename: Shojiro
authors.initials: S
authors.lastname: Ochiai