METAL X-RAY GRID, X-RAY IMAGING DEVICE, AND PRODUCTION METHOD FOR METAL X-RAY GRID
FIG14 is a cross-sectional view of a metal grid according to a third modified example
FIG14 is a cross-sectional view of a metal grid 1C according to a third modified example of the above-described embodiment. The metal grid 1C of the modified example includes a support substrate 50B instead of the frame portion 50 of the above-described embodiment. The support substrate 50B includes a surface 53 having the same shape as that of the member 10 and the member 10 is affixed to the surface 53. Specifically, the support substrate 50B has the same planar shape as that of the member 10 and is affixed to the X-ray receiving portion 13 and the flange portion 14 through an adhesive without any gap. Accordingly, the member 10 is supported by the support substrate 50B and the mechanical strength of the metal grid 1C is maintained. As the material of the support substrate 50B, a material (a light element) of high X-ray transmittance is selected differently from the frame portion 50 of the above-described embodiment. This is because the support substrate 50B is also provided in the X-ray receiving portion 13 and the X-rays XL need to be efficiently transmitted through the support substrate 50B. As an example, CFRP is exemplified as the material of the support substrate 50B. The thickness of the support substrate 50B is, for example, 0.5 mm or more and 10 cm or less. Furthermore, the support substrate 50B of the modified example can appropriately support the member 10 even when the member 10 does not include the flange portion 14 differently from the frame portion 50 of the above-described embodiment. When producing the metal grid 1C of the modified example, the support substrate 50B may be attached to the member 10 instead of the frame portion 50 in the step of attaching the frame portion 50 of the above-described embodiment. Further, in FIG14, the support substrate 50B is provided on the side of the rear surface 13b in the member 10, but the support substrate 50B may be provided on the side of the principal surface 13a in the member 10.
cross-sectional view
53
surface
14
flange portion flange portions
10
metal plate
13
X-ray receiving portion
['1. A metal X-ray grid comprising: a valve metal plate which includes a curved principal surface; an anodic oxide film which is formed on the principal surface of the valve metal plate; and a lattice structure which has an uneven shape periodically formed on the anodic oxide film.']