X-ray generating apparatus
AssigneeShimadzu Corporation
InventorAkihiro Miyaoka
Life of this patent
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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.
Claims7
An x-ray generating apparatus comprising:
- a vacuum container having a main body to which an electron gun is fixed, and a moving member coupled movably and airtightly to the main body via a vacuum bellows, the moving member being provided with a target and an x-ray irradiation window;
- 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 the electron gun to maintain a distance between an electron beam irradiation surface of the target and the electron gun constant upon movement of the moving member, wherein
- 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.
An x-ray generating apparatus comprising:
- a vacuum container having a main body to which an electron gun is fixed, and a moving member coupled movably and airtightly to the main body via a vacuum bellows, the moving member being provided with a target and an x-ray irradiation window;
- 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 the electron gun to maintain a distance between an electron beam irradiation surface of the target and the electron gun constant upon movement of the moving member, wherein
- the guide mechanism includes
- a guide portion provided on the main body side,
- a guided portion provided on the moving member side,
- a flat surface formed on one of the guide portion and the guided portion, and
- at least three convex curved surfaces formed to be in contact with the flat surface on the other of the guide portion and the guided portion.
Dependencies are inferred from the claim text.