JPH0432640Y2 - - Google Patents

Description

[Detailed description of the invention] When obtaining wide parallel X-rays, a Solar slit is used, in which a large number of rectangular thin metal plates are arranged in parallel at regular intervals. Such conventional solar slits are made by stacking a large number of metal thin plates cut into rectangular shapes with fixed dimensions in parallel, and placing strip-shaped metal spacers with a fixed thickness on both sides of each thin plate to form an outer layer. It has a structure that is secured by tightening it with screws, etc. However, if the tightening force is increased, distortion occurs due to deformation of the parts, and if the tightening force is decreased, the parts loosen during use, so in any case, it is difficult to accurately maintain constant spacing and parallelism. Therefore, the present invention aims to provide a solar slit for X-rays that does not have these drawbacks, and will be described below.

The present invention involves arranging a large number of rectangular thin metal plates in parallel at regular intervals, and bonding both sides of the plates to each other with an inorganic adhesive containing at least one of alumina or silica to fix them together. The gist of this paper is the structure of the paper. In this manner, the solar slit of the present invention uses adhesive to fix both sides of the thin metal plate, thereby eliminating the risk of distortion due to external force during assembly. Moreover, the thermal expansion coefficient of the above-mentioned inorganic adhesive is close to that of the metal thin plate or the metal casing used as needed, and there is no significant difference, so there is no possibility of distortion due to temperature changes. It has no disadvantages, and since it is less likely to undergo deterioration due to exposure to X-rays, it can maintain a constant shape and size for a long period of time. Furthermore, since it is not necessarily necessary to insert a spacer between the respective thin metal plates, the external shape is small and lightweight, and manufacturing is easy. Therefore, there are effects such as improved accuracy and reduced cost.

Fig. 1 is a partially longitudinal side view of the embodiment of the present invention, Fig. 2 is a partially longitudinally sectional front view, and Fig. 3 is a partially longitudinal side view of the embodiment of the present invention.
The figure is an enlarged view of a part of FIG. 2. In this way, the solar slit for X-rays of the present invention is made by arranging appropriate rectangular metal thin plates 1, 1... in parallel at minute regular intervals and polymerizing them to form an inorganic material whose main component is at least one of alumina or silica. Adhesive 2, 2...
The two sides are sequentially joined to form an integral piece, and if necessary, this can be attached to a rectangular cylindrical case 3.
It is used by fixing it inside the. When assembling such a solar slit, for example, a spacer with a thickness corresponding to the spacing between the thin metal plates 1, 1, etc. in FIG. However, this can be inserted into the case 3 and after the adhesive has solidified, the spacer can be pulled out.

As explained above with respect to the embodiments, the solar slit of the present invention does not require the application of large external force during assembly, so it is possible to obtain a slit of precisely specified dimensions, and it is possible to prevent problems such as loosening of screws during use. There is no risk of distortion due to
Has a long lifespan. Moreover, there is no risk of the adhesive changing or deteriorating due to exposure to X-rays, and since the coefficient of thermal expansion of the adhesive is similar to that of metal, there is no disadvantage such as distortion caused by temperature changes. It has excellent effects such as stable characteristics and long life.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a partially longitudinal side view, Fig. 2 is a partially longitudinal front view;
FIG. 3 is an enlarged view of a part of FIG. 2. In the figure, 1 is a rectangular thin metal plate, 2 is an inorganic adhesive, and 3 is a case.

Claims (1)

[Scope of utility model registration request] An X-ray system made by arranging a large number of rectangular thin metal plates in parallel at regular intervals and sequentially joining both sides of each thin metal plate with an inorganic adhesive whose main component is at least one of alumina or silica. Solar slit for.