A Rotating Electron Gun Ring X-ray Generator

Abstract

The present invention involves the present invention an announcement of a rotating electronic gun -shaped X -ray generator, including an electronic gun set on the ring -shaped bearing in the ring vacuum cavity, a fixed anode target ring, and a detector ring set with the same shaft setting with an anode target ring.EssenceInside the ring of the anode target ring and the detector ring, the ring -shaped anode target cooling water channel and the detector cooling water channel is set.Electronic guns rotate around the axle heart around the anode target ring.The ring -shaped fixed metal target of the present invention no longer rotates at high speed around the axis heart, so that the stress of the metal target greatly improves.The cooling liquid in the ring cooling pipes takes away the heat generated by the metal target, solving the problem of overheating and limited thermal capacity of metal targets, so that the X -ray generator can continue to emit rays for a long time, making the metal target is not easy to damage.Because the ring metal target no longer rotates, the metal target is not easy to damage, which greatly improves the life of the X -ray generator.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an annular X-ray generator of a rotating electron gun. Background technique [0002] In the field of medical imaging, X-ray generators are the core equipment of X-ray imaging equipment. After the X-ray generator generates X-rays, the rays pass through the object, and then the attenuated rays hit the detector, which receives the X-rays and generates image data. [0003] The basic principle of the X-ray generator is that the electrons generated by the electron gun are accelerated by the electric field, and then hit the metal target (the metal target is generally a tungsten alloy), and then make the free electrons of some atoms on the metal target transition to a higher energy level. Subsequently, this high-energy free electron transitions to a lower energy level, releasing photons at the same time. This photon is an X-ray photon. In the above structure, the electron gu...

AI Technical Summary

Problems solved by technology

But the resulting problem is that the heat generated on the rotating metal target is difficult to dissipate (to ensure continuous rotation while allowing the heat to continue to be dissipated)

Therefore, the problem is that the X-ray generator cannot continue to work for a long time. At the same time, in order to ensure continuous discharge for a period of time, the volume of the metal target is relatively large, so as to ensure a relatively large heat capacity

The above problems lead to the large size and weight of the X-ray generator, which cannot be used continuously for a long time

At the same time, because the outer shell of the vacuum chamber is made of glass, it is easy to break, and the metal target needs to rotate at a high speed for a long time when it is working, and the metal target is easily damaged, which in turn causes the X-ray generator to be easily damaged as a whole and has a short service life.

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