Large object plane X-ray stripe image converter tube and electronic optical imaging system
An X-ray and image-changing tube technology, which is applied in the direction of X-ray tube electrodes, X-ray tubes, X-ray tube components, etc., can solve the problems of large electrode spacing, poor anti-interference, and affecting system imaging performance, etc. Spacing, the effect of improving the anti-interference
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[0038] Example 1
[0039] See figure 1 with figure 2 This embodiment provides a large-surface X-ray stripe image tube, which includes an insulating jacket 7 and a metal sleeve 8 connected to each other. The insulating jacket 7 is made of insulating material. As a preferred insulating material, the material of the insulating jacket 7 is ceramic.
[0040] The large-surface X-ray stripe imager tube generates a lot of heat when it is working. By making the insulating jacket 7 made of ceramic, not only can it be insulated, but it can also have a good high temperature resistance. In this embodiment, the insulating jacket 7 and the metal sleeve 8 are in a vacuum environment, and the vacuum degree must be less than 0.005 Pa. By drawing a vacuum, the electron beam can be kept in a vacuum to prevent the air from being ionized.
[0041] A cathode 1, a grid 2, a focusing electrode assembly, and an anode 5 are sequentially arranged in the insulating jacket 7. A metal sleeve 8 is arranged on th...
Example Embodiment
[0056] Example 2
[0057] Such as image 3 , Figure 4 As shown, this embodiment provides another large object surface X-ray fringe image tube. The structure of the large object surface X-ray fringe image tube in this embodiment is basically the same as the structure of the large object surface X-ray fringe image tube in Example 1. The difference between the two is that this embodiment provides another grid 2 and the size relationship between the grid 2 and the first focusing electrode 3, which are specifically as follows:
[0058] The head end of the grid 2 is a cone, the tail end of the grid 2 is a cylinder, and the first focusing electrode 3 is a cylinder. The inner diameter of the tail end of the grid 2 is larger than the outer diameter of the first focusing electrode 3. The inner diameter of 3 is larger than the outer diameter of the first cylindrical section, the outer diameter of the first focusing electrode 3 is smaller than the outer diameter of the second cylindrical sec...
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