Rigaku Corporation

Konica Minolta, Inc.

Satake Corporation

Toyota Jidosha Kabushiki Kaisha

Tohoku University

Masashi Kageyama

Masahiro Nonoguchi

Masaru Kuribayashi

Ryouta Ishikawa

Tomohiro Chaki

Koichi Kato

Hiroyuki Shindo

Hiroyuki Matsuda

Hideyuki Fujii

Chozaburo Ikuta

Haruyoshi Yamaguchi

Junichiro Yonetake

Kenichi Okajima

Shigeki Kinoshita

Satoru Satake

Takafumi Koike

Manabu Noguchi

Masaaki Yamakata

Atsushi Momose

Shuhei Hayakawa

Akira Fukuhara

Yuzo Miura

Yuji Kusaka

Hideaki Masukane

Masahide Houri

Kiminori Kono

Yuichi Nagamatsu

Ryuji Nishida

Kouichi Katou

Hikaru Nagasawa

There is provided a technique for non-destructively and relatively easily acquiring orientation information of an anisotropic material even for a large-sized object. An object is irradiated with X-rays in a tangential direction of a curved anisotropic material from a radiation source of a phase-contrast X-ray optical system. A scattering image is then obtained using a detection signal of X-rays having penetrated through the object. Structure information of the anisotropic material is acquired based on the scattering image.

Structure information acquisition method and structure information acquisition apparatus

An X-ray generation device includes: a sealed X-ray tube including a cathode and an anode; a magnetic field generation portion applying a magnetic field to the electron beam, the magnetic field extending in a first direction, which crosses a traveling direction of the electron beam; and a rotary drive system configured to rotate the sealed X-ray tube, the anode having a surface including a first region and a second region arranged on one side and another side, with respect to a straight division line, the first region having a first metal arranged therein, and the second region having a second metal arranged therein, the second metal being different from the first metal, and by means of the rotary drive system rotating the sealed X-ray tube, the sealed X-ray tube being arranged with respect to the magnetic field generation portion so that the straight division line lies along the first direction.

X-ray generation device and X-ray analysis apparatus

An X-ray image generation device includes a moving mechanism that moves an object relative to a grating part in a direction crossing X-rays emitted toward the grating part. The grating part includes N (2&#x2264;N) regions along the direction of movement by the moving mechanism. A cyclic direction of a grating structure in each of the plurality of gratings belonging to an ith (1&#x2264;i&#x2264;N&#x2212;1) region out of the N regions and a cyclic direction of a grating structure in each of the plurality of gratings belonging to an (i+1)th region out of the N regions are different directions. The plurality of gratings are configured so that moir&#xe9; interference fringes generated in the N regions have a cyclic intensity fluctuation measurable by the detector and of at least one cycle or more in the direction of movement by the moving mechanism.

X-ray image generation device

Scanning optical system, comprising a rotatable mirror unit including first and second mirror surfaces each inclining relative to a rotation axis, and a light projecting system including a light source which emits light flux toward an object through the mirror unit. The light flux is reflected on the first mirror surface, then to the second mirror surface, and projected so as to scan on the object correspondingly to rotation of the mirror unit. The mirror unit includes multiples pairs of the first and second mirror surfaces, and the respective intersection angles of the multiples pairs are different from each other. In one rotation of the mirror unit, light flux emitted from the light source is reflected on the second mirror surfaces, and is projected sequentially, thereby to scan a measurement range in which the object is measured. Length in a sub scanning direction of the light flux and intersection angles of the multiples pairs correspond to length in a sub scanning direction of the measurement range.

Scanning optical system and radar

An object detection device includes a first optical transceiver that generates a first beam flux and receives a scattered portion of the first beam flux, a second optical transceiver that generates a second beam flux and receives a scattered portion of the second beam flux, and a mirror unit that rotates around a rotation axis. The first beam flux is reflected by the mirror unit and is scanned based on the rotation of the mirror unit, and the scattered portion of the first beam flux is generated by scattering of the first beam flux by an object. The scattered portion of the first beam flux is reflected by the mirror unit before being received by a light receiving portion of the first optical transceiver, and the second beam flux is reflected by the mirror unit and is scanned based on the rotation of the mirror unit.

Optical scanning object detection device detecting object that invades detection area

First ROI pixel values of a first region of interestof a radiographic intensity distribution image, and second ROI pixel values of a second region of interestof the radiographic intensity distribution image, are acquired. One of the first and second regions of interest is set to be at a position, or vicinity thereof, where a phase difference in the intensity modulation period within the radiographic intensity distribution image, with respect to the other region of interest, becomes &#x3c0;/2. Next, an elliptical locus obtained by plotting the first and second ROI pixel values for each radiographic intensity distribution image is determined. k angle region images are then acquired using the radiographic intensity distribution images corresponding to at least k angle regions that have been obtained by dividing the elliptical locus for each given angle. A radiographic image is then generated using the k angle region images. k is an integer of three or more.

Radiographic image generating device

Provided are an X-ray generator capable of easily measuring a beam size of an electron beam on an electron target, and an adjustment method therefor. The X-ray generator includes an electron target including a first metal, a second metal different from the first metal, and a third metal different from the second metal, which are sequentially arranged side by side along a first direction in a continuous manner.

X-ray generator and adjustment method therefor

The present invention provides a scanning optical system and radar that can suppress longitudinal distortion and spot rotation of a spot light radiated on an object. A light flux emitted from a light source is reflected on a first mirror surface of a mirror unit, then, proceeds to a second mirror surface, further is reflected on the second mirror surface, and is projected so as to scan on an object correspondingly to rotation of the mirror unit. The light flux emitted from the light projecting system is made longer in a sub scanning angle direction than in a scanning angle direction in a measurement range of the object and satisfies the following conditional expression, |&#x22c5;1&#x2212;90|&#xd7;|&#x22c5;|&#x22c5;255 . . . (1); in the expression, &#x22c5;1 is an intersection angle (&#xb0;) between the first mirror surface and the second mirror surface, and &#x22c5; is a rotation angle (&#xb0;).

An electron gun having: a cathode for emitting electrons; a first Wehnelt electrode equipped with a first aperture through which electrons are allowed to pass; and a second Wehnelt electrode that is equipped with a second aperture disposed at a predetermined position with respect to the cathode and the first aperture, and that is furnished at a position closer to the cathode than the first Wehnelt electrode, wherein: the cathode and the second Wehnelt electrode are included within a single assembly constituting a unitary body; and the assembly is detachably attached to the first Wehnelt electrode. Replacement of the cathode can be performed by detaching the cathode unit from the first Wehnelt electrode, and then ejecting the cathode unit out from the Wehnelt cover. The emitter of the cathode can thereby be reliably positioned with respect to the second aperture.

Electron gun, X-ray generator and X-ray measurement apparatus

Provided is an X-ray generator comprising a cathode for generating electrons; a rotating anode having a cylindrical electron impingement surface, an X-ray focal point being formed by a region in which the electrons impinge upon the electron impingement surface; and a Wehnelt electrode for imparting an electric field to the electrons emitted from the cathode. The Wehnelt electrode has a field formation surface for forming the electric field, and an electron passage aperture formed by the field formation surface. The field formation surface of the Wehnelt electrode is inclined with respect to a plane tangent to an outer circumferential surface of the rotating anode at the center of the X-ray focal point. The center of the cathode is in a plane orthogonal to the field formation surface and aligned with the center of the electron passage aperture.

X-ray generator

Provided is an X-ray generator for generating X-rays from an X-ray focal point that is a region in which electrons emitted from a filament impinge upon a rotating anode. The X-ray generator has a Wehnelt electrode for surrounding the filament, an attachment part formed integrally with the Wehnelt electrode, a pedestal to which the attachment part is attached, and a casing for housing the pedestal and the anticathode. The width of the space in which the anticathode is housed by the casing is less than the width of the space in which the pedestal is housed by the casing. The Wehnelt electrode extends into the space in which the anticathode is housed by the casing, in a state in which the attachment part is attached to the pedestal.

A rotatively oscillating separator comprising separating vessels each having cone-shaped separating plate disposed in the vessel, and drive means for rotatively oscillating said separating vessels , mixed rice consisting of unhulled rice and unpolished rice being fed onto the separating plates in the separating vessels at a given location to separate the unhulled rice and the unpolished rice from each other, the unpolished rice being discharged through raised peripheral portions of the vessels, and the unhulled rice being discharged through the central bottoms of the separating vessels. The drive means comprises a plurality of oscillatory drives provided at locations equi-angularly spaced around the separating vessels , said oscillatory drives each being upwardly inclined and operatively connected to the raised peripheral portion of the separating vessel to support it, said oscillatory drives being sequentially actuated at predetermined phases of delay to generate oscillatory motion to be imparted to the separating vessels, said each oscillatory drive including an oscillatory angle adjusting mechanism for retaining the oscillatory drive at the upward inclination and for varying an oscillatory angle in the rotative oscillation of the separating vessels.

Rotatively oscillating separator

A rotary shaking separator for separating unhulled rice and unpolished rice from each other includes at least one separating vessel and a plurality of drives located at even intervals on the peripheral edge of the separating vessel, the plurality of drives being actuated to bring the whole of the separating vessel into a rotationally shaking motion.

Growing community of inventors

Ome, Japan

Masashi Kageyama