公开(公告)号：US20180005721A1

公开(公告)日：2018-01-04

申请号：US15548489

申请日：2015-02-05

Applicant: SHIMADZU CORPORATION

Inventor： Akihiro MIYAOKA

IPC: G21K5/04 ,  G21K5/08

CPC classification number: G21K5/04 ,  G21K5/08 ,  H01J35/08 ,  H01J35/18 ,  H01J35/186 ,  H01J2235/08 ,  H01J2235/183

Abstract: An X-ray generator capable of reliably reducing an X-ray focal spot size without depending on the focal spot size of an electron beam on a target. Providing, within the irradiation range of an electron beam B of a target laminated structure 3 comprising a target 2 and an X-ray irradiation window 1, a low X-ray absorptivity region 3a of localized low X-ray absorptivity in the irradiation direction of the electron beam B results in the suppression of emission to the outside of X-rays from among the X-rays generated as a result of the irradiation of the electron beam B onto the target 2 that are from regions other than the low X-ray absorptivity region 3a, and an X-ray focal spot of a size corresponding to the size of the low X-ray absorptivity region 3a is obtained regardless of the size of the irradiation region of the electron beam B.

公开(公告)号：US20150103979A1

公开(公告)日：2015-04-16

申请号：US14501727

申请日：2014-09-30

Applicant: Shimadzu Corporation

Inventor： Akihiro MIYAOKA ,  Tomomi TAMURA ,  Hiroki MAEDA

IPC: H05G1/02 ,  H01J35/18

CPC classification number: H01J35/18 ,  H01J2235/122 ,  H01J2235/1291 ,  H01J2235/183 ,  H01J2235/186

Abstract: An object of the invention is to provide an X-ray generator having a simple configuration where heat generated in the irradiation window can be prevented from conducting to a desired portion in accordance with the purpose of use, the method of use or the structure of the X-ray tube. In an X-ray generator for releasing X-rays generated by irradiating a target placed in a vacuumed atmosphere within an X-ray tube with an electron beam from an electron source through an irradiation window of the X-ray tube, the irradiation window has thermal anisotropy where the thermal conductivity is different between the direction in which the irradiation window spreads and the direction of the thickness of the irradiation window, and therefore, the thermal conductivity in the direction in which the heat from the irradiation window is desired not to conduct is made relatively smaller.

Abstract translation: 本发明的目的是提供一种X射线发生器，其具有简单的构造，其中根据使用目的，使用方法或使用的结构可以防止在照射窗中产生的热量进入所需部分 X光管。 在通过X射线管的照射窗从电子源通过用X射线管内的真空气氛中照射放置在真空气氛中的靶的X射线发生器中，照射窗具有 热导率在照射窗口扩散的方向和照射窗口的厚度方向之间的热导率不同的热各向异性，因此，期望来自照射窗的热量的方向上的导热性不会导致 相对较小。

公开(公告)号：US20180366294A1

公开(公告)日：2018-12-20

申请号：US15919561

申请日：2018-03-13

Applicant: Shimadzu Corporation

Inventor： Akihiro MIYAOKA

IPC: H01J3/07 ,  H01J37/075 ,  H01J35/14 ,  H01J3/02 ,  H01J37/12

Abstract: An electron beam apparatus includes: a cathode configured to emit electrons; an anode that is an electrode which forms an electric field such that an electron beam is formed by the electrons emitted from the cathode, and that is formed with a first hole through which the electron beam passes; an aperture member formed with an opening that shades a part of the electron beam which passes through the anode; and a convergence electrode that is an electrode which forms an electric field such that the electron beam which passes through the opening converges, and that is configured to include one single-hole electrode formed with a second hole through which the electron beam passes.

公开(公告)号：US20160329185A1

公开(公告)日：2016-11-10

申请号：US15135668

申请日：2016-04-22

Applicant: Shimadzu Corporation

Inventor： Akihiro MIYAOKA

IPC: H01J35/24 ,  H01J35/18 ,  H01J35/08

CPC classification number: H01J35/16 ,  A61B6/40 ,  A61B6/44 ,  A61B2560/0406 ,  H01J5/02 ,  H01J5/04 ,  H01J5/48 ,  H01J19/54 ,  H01J19/64 ,  H01J35/08 ,  H01J35/18 ,  H01J35/20 ,  H01J35/28 ,  H01J37/16 ,  H01J2235/16 ,  H01J2235/163 ,  H01J2235/186 ,  H05G1/02 ,  H05G1/04

Abstract: An x-ray generating apparatus comprises: a vacuum container having a main body, and a moving member coupled movably and airtightly to the main body via a vacuum bellows; and a guide mechanism, provided on an outer side of the vacuum container, for regulating the movement and inclination of the moving member in an approaching/separation direction with respect to an electron gun. The guide mechanism includes a guide portion where a guide flat surface along a plane orthogonal to a central axis of the electron beam is formed, the guide portion being provided on the main body side, a guided portion where a guided flat surface facing the guide flat surface is formed, the guided portion being provided on the moving member side, and at least three rolling elements placed between the guide flat surface and the guided flat surface.

Abstract translation: X射线产生装置包括：具有主体的真空容器和通过真空波纹管可移动和气密地连接到主体的移动构件; 以及引导机构，设置在真空容器的外侧，用于调节移动构件相对于电子枪的接近/分离方向的移动和倾斜。 引导机构包括：引导部，其沿着与电子束的中心轴正交的平面形成引导平面，引导部设置在主体侧，引导部，其中被引导的平面朝向引导平面 形成有导向部分设置在移动构件侧上的至少三个滚动元件，以及设置在引导平面与导向平面之间的至少三个滚动元件。