CN206657796U - Ripple glass bulb X-ray tube - Google Patents

Abstract

The utility model discloses a kind of ripple glass bulb X-ray tube, including glass shell, cathode assembly and anode assemblies, the outer surface of the glass shell is provided with bellows-shaped structure.The utility model uses corrugated glass bulb, there is longer glass bulb along face length under certain homogeneous tube size, smaller glass bulb is along surface-potential gradient, glass bulb stored charge can be increased under smaller homogeneous tube size climbs electric difficulty, improve the resistance to voltage levels of homogeneous tube, the requirement of super-pressure is adapted to, so as to turn into super-pressure X-ray tube.

Description

Ripple glass bulb X-ray tube

Technical field

It the utility model is related to a kind of X-ray tube, and in particular to a kind of ripple glass bulb X-ray tube.

Background technology

The shell mechanism of existing X-ray tube typically selects the glass material of surfacing, in general, X-ray tube tolerance High-tension ability is closely related along face length and glass bulb diameter with glass shell (glass bulb), and glass bulb is longer along face length, its electricity Potential gradient is smaller.Using the glass material of surfacing as shell mechanism, for specific demand extra-high voltage X-ray tube When, large-size glass shell need to be used to improve its high-voltage isulation level, the overall dimensions of X-ray tube certainly will be increased so that The mechanical performance of ray tube reduces, and reduces the reliability and stability of work.

Utility model content

In view of the shortcomings of the prior art, the utility model aims to provide a kind of ripple glass bulb X-ray tube, X-ray tube it is outer Shell structure uses glass bulb (vacuum sealing glass shell), and is processed into bellows-shaped, in identical glass bulb along under the length of face, ripple Line glass bulb structure is more much smaller than smooth glass bulb physical dimension, then under the premise of same potential gradient, using ripple glass bulb knot Structure can effectively shorten homogeneous tube size, so as to keep less homogeneous tube size, and glass in the case where improving the resistance to voltage levels of glass bulb Shell has that light quality, manufacture craft be simple, cheap feature.

To achieve these goals, the utility model adopts the following technical scheme that：

A kind of ripple glass bulb X-ray tube, including glass shell, cathode assembly and anode assemblies, the glass shell it is outer Surface is provided with bellows-shaped structure.

Further, the both ends of the glass shell are flat cylindrical structure, and respectively with the anode assemblies and negative electrode Component sealing-in.

Further, the thickness of the glass shell is 1.0~3.0mm.

Further, used on the glass shell with the face position of ray exit direction and seamlessly transit structure.

The beneficial effects of the utility model are：

1st, using corrugated glass bulb, there is bigger glass bulb under certain homogeneous tube size along face length, smaller glass bulb is along face Electric potential gradient, the resistance to voltage levels climbed electric difficulty, improve homogeneous tube of glass bulb stored charge can be increased under smaller homogeneous tube size, adapted to The requirement of super-pressure, so as to turn into super-pressure X-ray tube.

2nd, the ripple glass bulb X-ray tube is to be applied to X-ray-scanning images of object to check equipment, and line scanning device requires that ray is Sector distribution.X ray inherent filtration and glass bulb thickness are closely related, can be because if effective rays radiation position glass bulb is corrugated Ray is different through thickness of glass, influences the inherent filtration of X ray.It is smooth by being used in the position of ray exit direction face Transition structure, it is ensured that ray inherent filtration is consistent, meet X-ray energy spectrum Even distribution entails.

3rd, compared to traditional glass shell X-ray tube, homogeneous tube size can be greatly shortened using the X-ray tube of ripple glass bulb, be The miniaturization of high voltage radiographic source creates conditions.

4th, under the premise of resistance to voltage levels are met, compared with conventional high-pressure X-ray tube, glass bulb contraction in length, the contracting of homogeneous tube volume It is small, compact structure design is realized, is effectively improved the impact resistance of cast.

5th, both ends are flat cylindrical structure design, make it consistent with conventional pipe with the process for sealing of cathode and anode component, have Versatility and easy-operating feature.

Brief description of the drawings

Fig. 1 is the structural representation of the X-ray tube of the utility model embodiment 1；

Fig. 2 is the structural representation of the X-ray tube of the utility model embodiment 2.

Embodiment

Below with reference to accompanying drawing, the utility model will be further described, it is necessary to which explanation, the present embodiment is with this skill Premised on art scheme, detailed embodiment and specific operating process are given, but the scope of protection of the utility model is not It is limited to the present embodiment.

Embodiment 1

Fig. 1 show the ripple glass bulb X-ray tube of 250kV super-pressure.Including glass shell 101, cathode assembly 103 and sun Pole component 102, the outer surface of the glass shell 101 are provided with bellows-shaped structure 1011.

Further, the both ends 1012 of the glass shell 101 are provided with flat cylindrical structure, and respectively with the anode unit Part 102 and the sealing-in of cathode assembly 103.

Further, the thickness of the glass shell 101 is 1.0~3.0mm.

Further, used on the glass shell 101 with the position of the face of ray eye point 104 and seamlessly transit structure 105。

Negative and positive interpolar powers up 250kV high pressures, and ray tube working beam is 1mA.Test result shows：Under this Parameter Conditions Can continuous-stable work, meet rigors of the real time scan working method to device micro discharge.

Embodiment 2

Fig. 2 show the ripple glass bulb X-ray tube of 320kV super-pressure.Including glass shell 201, cathode assembly 203 and sun Pole component 202, the outer surface of the glass shell 201 are provided with bellows-shaped structure 2011.

Further, the both ends of the glass shell 201 are provided with flat cylindrical structure 2012, and respectively with the anode unit Part 202 and the sealing-in of cathode assembly 203.

Further, the thickness of the glass shell 201 is 1.0~3.0mm.

Further, used on the glass shell 201 with the position of the face of ray eye point 204 and seamlessly transit structure 205。

Negative and positive interpolar powers up 320kV high pressures, ray tube working beam 1mA.Test result shows：The energy under this Parameter Conditions Enough continuous-stable work, meets rigors of the real time scan working method to device micro discharge.

Difference maximum with 320kV X ray tubular construction 250kV is anode construction, as shown in Fig. 1,2 102 and 202； Purpose is to ensure that glass bulb meets different pressure-resistant demands along surface-potential gradient.

The ripple glass bulb X-ray tube operation principle：Cathode assembly focus emission thermoelectron, thermoelectron is by anode assemblies height X ray needed for the generation of piezoelectricity field action high velocity bombardment plate target, corrugated glass shell play support negative and positive the two poles of the earth and kept in pipe The effect of vacuum.

For those skilled in the art, technical scheme that can be more than and design, make various corresponding Change and deformation, and all these change and deformation should be construed as being included in the utility model claims protection domain it It is interior.

Claims (4)

1. a kind of ripple glass bulb X-ray tube, including glass shell, cathode assembly and anode assemblies, it is characterised in that the glass The outer surface of shell is provided with bellows-shaped structure.

2. ripple glass bulb X-ray tube according to claim 1, it is characterised in that the both ends of the glass shell are smooth Cylindrical structure, and respectively with the anode assemblies and cathode assembly sealing-in.

3. ripple glass bulb X-ray tube according to claim 1, it is characterised in that the thickness of the glass shell be 1.0~ 3.0mm。

4. ripple glass bulb X-ray tube according to claim 1, it is characterised in that be emitted on the glass shell with ray The position of direction face uses and seamlessly transits structure.