Abstract:
Microachitectured, deep well surfaces have been disclosed. Such surfaces geometrically generate high energy standing waves within the deep wells when irradiated or heated. The high energy standing waves are quantum states. Uses for the microarchitectured, deep well surfaces have also been disclosed and include, but are not limited, to spectroscopy, photocatalysts and energy tuners.
Abstract:
A doubly-curved crystal for use in a scanning monochromator is oriented with respect to a reference plane containing source and image locations of the monochromator. The crystal has concave planes of lattice points and a concave crystal surface which satisfy Johannson geometric conditions within the reference plane for a Rowland circle of radius R. The planes of lattice points are substantially spherically curved to a radius of 2R, and the crystal surface is substantially toroidally curved with a radius of substantially 2R within a plane perpendicular to the reference plane. The crystal may be formed by plastically deforming a cylindrically curved crystal blank over a doubly-curved convex die.
Abstract:
A graphite monochromator for X-rays and neutrons which uses a graphitized product obtained by graphitizing a polymer film in an inert atmosphere at a temperature of 2,000.degree. to 3,500.degree. C., which has an extremely excellent plane orientation, and has an excellent smoothness and a mosaic spread of 4.degree. or less.
Abstract:
A doubly-curved crystal for use in a scanning monochromator is oriented with respect to a reference plane containing source and image locations of the monochromator. The crystal has concave planes of lattice points and a concave crystal surface which satisfy Johannson geometric conditions within the reference plane for a Rowland circle of radius R. The planes of lattice points are substantially spherically curved to a radius of 2R, and the crystal surface is substantially toroidally curved with a radius of substantially 2R within a plane perpendicular to the reference plane. The crystal may be formed by plastically deforming a cylindrically curved crystal blank over a doubly-curved convex die.
Abstract:
A focusing X-ray crystal monochromator in which one or more crystal layers having different spacings of lattice plane are stacked on a crystal base. Due to different spacings of lattice plane, the angle of reflection and diffraction of a diverging incident X-ray beam can be so changed that the beam takes a parallel or focusing direction for monochromatization. Thus, the monochromator of the present invention can be applied to the X-ray lithography for transferring a pattern of high resolution or the X-ray analysis such as the fine X-ray diffraction.
Abstract:
A unique composite structure is provided for calibration of diffractometer at low values of 2.theta.. This composite structure involves a layer of silicon powder and a plurality of monolayers of a heavy metal stearate on the silicon powder. A lead stearate layered material has been found to provide significant results for enabling calibration below 20.degree..
Abstract:
A monocrystalline Bi.sub.2 Ge.sub.3 O.sub.9 is formed, for example, via the Czochralski technique from a melt containing pure Bi.sub.2 O.sub.3 and GeO.sub.2 at a molecular ratio of 1:3. This crystal is useful as an x-ray spectrometer crystal and/or as a light defector crystal in conjunction with an ultrasonic deflection field properly applied to such crystals.
Abstract translation:例如,通过Czochralski技术从含有纯Bi 2 O 3和GeO 2的分子比为1:3的熔体形成单晶Bi2Ge3O9。 该晶体可用作x射线光谱仪晶体和/或作为适合于这种晶体的超声波偏转场的光反射晶体。
Abstract:
A NONLINEAR DEVICE INCLUDES A MEDIUM (PREFERABLY CHARACTERIZED BY A LOW X-RAY ABSORPTION CONSTANT AND NEAR STRUCTURAL PERFECTION) IN WHICH IS ESTABLISHED A TIMEVARYING MICROSCOPIC CHARGE DENSITY "CLOUD" BY THE APPLICATION THERETO OF A PERTURBATION SIGNAL OF FREQUENCY WL. AN INPUT X-RAY SIGNAL OF FREQUENCY WI IS INCIDENT ON THE MEDIUM COINCIDENT WITH THE PERTURBATION SIGNAL AND IS THEREBY FREQUENCY SHIFTED PRODUCING AN OUTPUT X-RAY SIGNAL AT THE SUM AND/OR DIFFERENCE FREQUENCIES WI$WL.