X-ray tube head

Abstract

The invention relates to a medical X-ray source component, in particular to an X-ray tube head capable of minimizing leakage radiation. The X-ray tube head comprises an X-ray tube sleeve shell, a high-voltage transformer component, a filament transformer component, an X-ray tube and an electrical interface, wherein an expansion tube is arranged inside the X-ray tube sleeve shell; two ends of the expansion tube are fixed on an expansion-tube gas-guiding plunger and an expansion-tube plunger through expansion-tube fixing hoops respectively; the expansion-tube gas-guiding plunger and the expansion-tube plunger are welded onto an X-ray tube sleeve side plate; an X-ray tube sleeve side guard plate is fixed on the X-ray tube sleeve side plate; a lead shielding plate is inlaid in the X-ray tube sleeve side guard plate; and the outer side of the X-ray tube sleeve side guard plate is covered with an aluminum radiator. The X-ray tube head has the advantages of reducing the harm of the leakage radiation of the X-ray tube head to personnel, increasing the heat capacity of the X-ray tube head, prolonging continuous service time and reducing clinical risk.

Description

Technical field: [0001] The invention relates to a medical X-ray source assembly, in particular to an X-ray tube head (that is, an X-ray source assembly including a high-voltage transformer assembly) capable of reducing radiation leakage as much as possible. technical background: [0002] At present, the general structure of the known X-ray tube head is composed of an X-ray tube jacket (i.e., can prevent electric shock and prevent X-ray radiation. There is a container for holding the X-ray tube with a radiation window), a high-voltage transformer assembly, a filament transformer assembly, X-ray tube, expansion vessel, electrical interface, etc. The expansion vessel generally used at present is generally an expansion drum. However, the expansion drum that can satisfy the thermal expansion volume (about 500 cc) has a larger diameter (about 120 mm) and a longer axial length (about 100 mm). Only semi-submersible installation on the side of the X-ray tube sleeve can be adopted....

AI Technical Summary

Problems solved by technology

The disadvantages of this design technology are: 1. Due to the structural characteristics of the expansion drum, it is not easy to install the entire lead shielding plate on the side of the X-ray tube sleeve, and it is easy to make the stray radiation in the axial direction of the X-ray tube in the radial direction of the expansion drum. leaking radiation

2. The expansion drum structure adopts side semi-submersible installation. When the length of the X-ray tube head is fixed, the length of the X-ray tube sleeve is limited, which affects the volume of the X-ray tube sleeve and reduces the heat capacity of the X-ray tube head.

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