CN108922843A - A kind of x-ray source radiation protection component for metal ceramic tube - Google Patents
A kind of x-ray source radiation protection component for metal ceramic tube Download PDFInfo
- Publication number
- CN108922843A CN108922843A CN201810781117.6A CN201810781117A CN108922843A CN 108922843 A CN108922843 A CN 108922843A CN 201810781117 A CN201810781117 A CN 201810781117A CN 108922843 A CN108922843 A CN 108922843A
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- Prior art keywords
- metal
- lead
- ceramic tube
- ray source
- wall
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/16—Vessels; Containers; Shields associated therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2235/00—X-ray tubes
- H01J2235/16—Vessels
- H01J2235/165—Shielding arrangements
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- X-Ray Techniques (AREA)
Abstract
The invention discloses a kind of x-ray source radiation protection components for metal ceramic tube, including metal ceramic tube, lead and with the metal cylinder of hollow cavity；The barrel of the metal cylinder has the hollow sandwich to match with the shapes and sizes of the lead, and the lead is wrapped in the hollow sandwich of the metal cylinder；The metal ceramic tube is set in the hollow cavity of the metal cylinder, and its metal shell is in contact with the inner wall of the metal cylinder；The thickness of the inner wall of lead part corresponding with the metal shell position of the metal ceramic tube is greater than the other parts of the inner wall of the lead.The present invention had both improved the protection effect of X-ray, alleviated radiographic source weight, and met the grounding requirement of metal ceramic tube, while the lead asperity contact for also avoiding lead surface improves the stability of radiographic source to insulating oil.
Description
Technical field
The present invention relates to x-ray source technical fields, and in particular to a kind of x-ray source radiation protection for metal ceramic tube
Component.
Background technique
Metal ceramic tube is the abbreviation of metal-ceramic X-ray tube, it uses metal as casing, uses ceramics as shell,
It is a kind of vacuum electron device that metal target surface generation X-ray is hit using high-velocity electrons.X-ray source is to generate X-ray to be
System is to provide the accurate high-voltage electricity of a kind of comparison of high voltage and cathode filament voltage between cathode and anode for the X-ray tube of its inside
Source system.
When metal ceramic tube is mounted in x-ray source in use, requiring its metal shell to be grounded, to guarantee that its tube wall will not
Assemble charge, the job stability of metal ceramic tube can be improved.When metal ceramic tube work, the X of its metal shell position is penetrated
It is maximum that line reveals dosage.
X-ray source needs to control the ray leakage dosage of its surrounding in very low range at work, such as：≤5μ
Gy/h, this requires radiographic sources must have good radiation protection ability.The highest ray protection material of cost performance is at present
Lead and its derivative can reduce the exhausted of insulating oil but if the lead particle on lead material surface is mixed among the insulating oil of x-ray source
Edge intensity, and then may cause radiographic source sparking.
Currently, there are mainly three types of the set-up modes of ray protection material：
(1) lead oxide or the safeguard structure of lead peroxide material are used inside x-ray source.This programme using lead oxide or
Lead peroxide material had not only had radiation protection ability, but also had the characteristics that high voltage isolation capability, by it in most of radiographic source
It is processed into cylindrical shape, be wrapped in around metal ceramic tube and then forms part protection, or is processed into plate, is placed on anode and cathode
Both ends.But the shortcomings that this mode, is：Radiation protection ability is low, and the protective capacities of lead oxide or lead peroxide material is uniform thickness
Spend the 30%-40% of lead material；Processing is complicated, at high cost, and the material of lead oxide or lead peroxide material is lead oxide or peroxide
Change lead powder end, when processing need to first carry out powder metallurgical technique, then carry out machine tooling.In addition, due to itself being insulating materials,
Need additional designs metal ceramic tube ground structure.
(2) safeguard structure of lead material is used inside x-ray source.This programme is high using lead material cost performance, ray is anti-
The good feature of effect is protected, tubular is processed into or plate is mounted on the inner wall position of x-ray source.The shortcomings which is,
The lead particle on lead material surface is easy to be mixed among the insulating oil of x-ray source, can reduce its dielectric strength, and then may cause and penetrate
Line source sparking；Lead material processing performance is poor, and dimensional accuracy is low, can not process screw thread, is not easy to connect with other parts；Lead material
Conductive capability is poor, needs additional designs metal ceramic tube ground structure.
(3) safeguard structure of lead material is used outside x-ray source.This programme is high using lead material cost performance, ray is anti-
The good feature of effect is protected, tubular is processed into or plate is mounted on the outer wall position of x-ray source.Disadvantage is mainly, to guarantee
Protection effect, lead material need fully wrapped around firmly radiographic source outer surface, and this adds increased the dosages of lead material, lead to x-ray source weight
Amount increases.
Summary of the invention
In view of the deficiencies of the prior art, the present invention is intended to provide a kind of x-ray source radiation protection for metal ceramic tube
Component had both improved the protection effect of X-ray, alleviated radiographic source weight, and met the grounding requirement of metal ceramic tube, together
When also avoid lead surface lead asperity contact to insulating oil, improve the stability of radiographic source.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of x-ray source radiation protection component for metal ceramic tube, including metal ceramic tube, lead and have it is hollow
The metal cylinder of inner cavity；The barrel of the metal cylinder has the hollow sandwich to match with the shapes and sizes of the lead, described
Lead is wrapped in the hollow sandwich of the metal cylinder；The metal ceramic tube is set in the hollow cavity of the metal cylinder,
And its metal shell is in contact with the inner wall of the metal cylinder；The metal shell of the inner wall of the lead and the metal ceramic tube
The thickness of the corresponding part in position is greater than the other parts of the inner wall of the lead.
Further, the metal cylinder is mainly spliced by several pieces of metal plates.
Further, the lead is completely wrapped in the hollow sandwich.
Further, the middle section of the inner wall of the lead is corresponding with the metal shell position of the metal ceramic tube,
To which the inner wall of the lead is in the step structure that thickness declines from middle section to both ends part.
Further, pass through semicircle metal locating element between the metal shell of the metal ceramic tube and the metal cylinder
It is fixed, the inner and outer wall of the semicircle metal locating element respectively with the metal shell of the metal ceramic tube and metal cylinder
Inner wall is in contact.
A kind of x-ray source with above-mentioned x-ray source radiation protection component, including x-ray source metal shell, the X are penetrated
Line source metal shell is socketed in the outside of the metal cylinder and is in contact with the outer wall of the metal cylinder.
Further, the both ends of the x-ray source metal shell are respectively equipped with lead oxide part, the lead oxide part at both ends
Mutually fixed with the both ends of the surface of the metal cylinder.
The beneficial effects of the present invention are：The x-ray source radiation protection component for being used for metal ceramic tube of the invention is answered
In x-ray source, the protection effect of X-ray not only can be improved, and due to the inner wall and metal ceramic tube using lead
The structure that thickeies of the corresponding part in metal shell position, not only alleviated radiographic source weight but also met the ground connection of metal ceramic tube
It is required that.In addition lead is wrapped up using metal cylinder, the lead asperity contact on lead surface can also be avoided to insulating oil, improve ray
The stability in source.
Detailed description of the invention
Fig. 1 is the overall structure schematic cross-section of the embodiment of the present invention 1；
Fig. 2 is the schematic cross-section that the metal cylinder of lead is enclosed in the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 2.
Specific embodiment
Below with reference to attached drawing, the invention will be further described, it should be noted that following embodiment is with this technology
Premised on scheme, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to this
Embodiment.
Embodiment 1
The present embodiment provides a kind of x-ray source radiation protection components for metal ceramic tube, as shown in Figs. 1-2, including
Metal ceramic tube 1, lead 3 and the metal cylinder 2 with hollow cavity 21；The barrel of the metal cylinder 2 has and the lead 3
The hollow sandwich that shapes and sizes match, the lead 3 are wrapped in the hollow sandwich of the metal cylinder 2；The metal
Ceramic tube 1 is set in the hollow cavity of the metal cylinder 2, and its metal shell 11 is in contact with the inner wall of the metal cylinder 2；Institute
The thickness for stating the inner wall part 31 corresponding with 11 position of metal shell of the metal ceramic tube 1 of lead 3 is greater than the lead 3
Inner wall other parts.
In the present embodiment, the metal cylinder 2 is mainly spliced by several pieces of metal plates, and barrel has and the lead
The hollow sandwich that matches of shapes and sizes, the lead 3 is completely wrapped in the hollow sandwich, and barrel surrounds hollow
Inner cavity.
In the present embodiment, the metal cylinder 2 is cylindrical.
In practical applications, the metal cylinder 2 can be made of steel material, can also use other metal material systems
At.
In the present embodiment, metal shell 11 of the middle section of the inner wall of the lead 3 and the metal ceramic tube 1
Correspondence is set, so that the inner wall of the lead 3 is in the step structure declined from middle section to both ends part.Ladder quantity can be with
For level-one, or multistage, the inner wall of lead 3 is the structure of step in the present embodiment, i.e., with the metal ceramic tube 1
The corresponding middle section of metal shell 11 it is thick, both ends part corresponding with the ceramic shell 12 of metal ceramic tube 1 is thin.
The metal shell 11 of the metal cylinder 2 and metal ceramic tube 1 can be contacted directly, can also be using mediate contact
Mode.And in the present embodiment, pass through semicircle metal between the metal shell 11 and the metal cylinder 2 of the metal ceramic tube 1
Locating element 4 is fixed, and the inner and outer wall of the semicircle metal locating element 4 is respectively and outside the metal of the metal ceramic tube 1
Shell 11 and the inner wall of metal cylinder 2 are in contact.
When assembling, metal ceramic tube 1 is fixed by way of clamping or spiral shell dress with two semicircle metal locating elements 4 first,
It need to guarantee to contact between metal ceramic tube 1 and the semicircle metal locating element 4 good.Then by metal ceramic tube 12 from side
It is put into metal cylinder and is fixed using screw, it is good need to guarantee that the semicircle metal locating element 4 is contacted with the inner wall of metal cylinder 2
It is good.
Embodiment 2
The present embodiment provides a kind of x-ray sources with x-ray source radiation protection component described in embodiment 1, such as Fig. 3 institute
Show, including x-ray source metal shell 5, the x-ray source metal shell 5 be socketed in the outside of the metal cylinder 2 and with the gold
The outer wall for belonging to cylinder 2 is in contact.
In the present embodiment, the both ends of the x-ray source metal shell 5 are respectively equipped with lead oxide part 6, the oxidation at both ends
Both ends of the surface of the lead part 6 with the metal cylinder 2 are mutually fixed.
When assembling, by the x-ray source radiation protection component for being used for metal ceramic tube assembled in embodiment 1
It is screwed into an entirety with the lead oxide part 6 at both ends, then X is put into from one end of x-ray source metal shell 5 and penetrates
In line source metal shell 5, clamps and fix.Thereafter x-ray source positive and negative anodes high-tension circuit installed and by itself and metal ceramic tube 1
It is connected.Finally, x-ray source remaining component is installed, it is sealed, x-ray source is vacuumized and injects insulating oil.
In practical applications, lead oxide part can also not be used, directly by the x-ray source for being used for metal ceramic tube
Radiation protection component is put into x-ray source metal shell, and two outer end faces for changing into radiographic source carry out radiation protection.
In the present embodiment, penetrated by the X for metal ceramic tube provided by the Application Example 1 in x-ray source
The protection effect of X-ray not only can be improved in line source radiation protection component, and due to the inner wall and cermet using lead
The structure that the corresponding part in the metal shell position of pipe thickeies, had not only alleviated radiographic source weight but also had met connecing for metal ceramic tube
Ground requirement.In addition lead is wrapped up using metal cylinder, the lead asperity contact on lead surface can also be avoided to insulating oil, improve and penetrate
The stability of line source.
For those skilled in the art, it can be provided various corresponding according to above technical solution and design
Change and modification, and all these change and modification, should be construed as being included within the scope of protection of the claims of the present invention.
Claims (7)
1. a kind of x-ray source radiation protection component for metal ceramic tube, which is characterized in that including metal ceramic tube, lead
With the metal cylinder with hollow cavity；The barrel of the metal cylinder matches hollow with the shapes and sizes with the lead
Interlayer, the lead are wrapped in the hollow sandwich of the metal cylinder；The metal ceramic tube is set in the metal cylinder
It is intracavitary in sky, and its metal shell is in contact with the inner wall of the metal cylinder；The inner wall of the lead and the metal ceramic tube
The corresponding part in metal shell position thickness be greater than the lead inner wall other parts.
2. the x-ray source radiation protection component according to claim 1 for metal ceramic tube, which is characterized in that described
Metal cylinder is mainly spliced by several pieces of metal plates.
3. the x-ray source radiation protection component according to claim 1 for metal ceramic tube, which is characterized in that described
Lead is completely wrapped in the hollow sandwich.
4. the x-ray source radiation protection component according to claim 1 for metal ceramic tube, which is characterized in that described
The middle section of the inner wall of lead is corresponding with the metal shell position of the metal ceramic tube, so that the inner wall of the lead is in thickness
Spend the step structure declined from middle section to both ends part.
5. the x-ray source radiation protection component according to claim 1 for metal ceramic tube, which is characterized in that described
It is fixed between the metal shell of metal ceramic tube and the metal cylinder by semicircle metal locating element, the semicircle metal positioning
The inner and outer wall of part is in contact with the inner wall of the metal shell of the metal ceramic tube and metal cylinder respectively.
6. a kind of x-ray source with any x-ray source radiation protection component of claim 1-5, which is characterized in that packet
Include x-ray source metal shell, the x-ray source metal shell is socketed in the outside of the metal cylinder and outer with the metal cylinder
Wall is in contact.
7. x-ray source according to claim 6, which is characterized in that the both ends of the x-ray source metal shell are respectively equipped with
The lead oxide part of lead oxide part, both ends is mutually fixed with the both ends of the surface of the metal cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781117.6A CN108922843B (en) | 2018-07-17 | 2018-07-17 | X-ray source radiation protection assembly for metal ceramic tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810781117.6A CN108922843B (en) | 2018-07-17 | 2018-07-17 | X-ray source radiation protection assembly for metal ceramic tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108922843A true CN108922843A (en) | 2018-11-30 |
| CN108922843B CN108922843B (en) | 2023-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810781117.6A Active CN108922843B (en) | 2018-07-17 | 2018-07-17 | X-ray source radiation protection assembly for metal ceramic tube |
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| Country | Link |
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| CN (1) | CN108922843B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0530424A1 (en) * | 1991-09-03 | 1993-03-10 | Andrex Radiation Products A/S | An x-ray generating apparatus |
| JPH10214582A (en) * | 1997-01-30 | 1998-08-11 | Toshiba Electron Eng Corp | Cylinder for x-ray tube apparatus and manufacture thereof |
| JP2003115272A (en) * | 2001-10-03 | 2003-04-18 | Shimadzu Corp | Rotary anode x-ray tube device |
| CN1711008A (en) * | 2005-07-15 | 2005-12-21 | 北京中盾安民分析技术有限公司 | Sectional-drum-shape X-ray source |
| CN201681787U (en) * | 2010-05-13 | 2010-12-22 | 杭州万东电子有限公司 | X-ray tube provided with lead protection device |
| CN201780961U (en) * | 2010-07-15 | 2011-03-30 | 赵福元 | Breast X-ray tube |
| CN202385376U (en) * | 2011-12-16 | 2012-08-15 | 宿迁波尔高压电源有限公司 | X-ray source |
| CN102986303A (en) * | 2010-07-21 | 2013-03-20 | 株式会社蛟簿 | X-ray generation device |
| CN108028159A (en) * | 2015-08-10 | 2018-05-11 | 东芝电子管器件株式会社 | The manufacture method of X-ray tube, X-ray pipe device and X-ray pipe device |
| CN208336144U (en) * | 2018-07-17 | 2019-01-04 | 公安部第一研究所 | A kind of x-ray source radiation protection component for metal ceramic tube |
-
2018
- 2018-07-17 CN CN201810781117.6A patent/CN108922843B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0530424A1 (en) * | 1991-09-03 | 1993-03-10 | Andrex Radiation Products A/S | An x-ray generating apparatus |
| JPH10214582A (en) * | 1997-01-30 | 1998-08-11 | Toshiba Electron Eng Corp | Cylinder for x-ray tube apparatus and manufacture thereof |
| JP2003115272A (en) * | 2001-10-03 | 2003-04-18 | Shimadzu Corp | Rotary anode x-ray tube device |
| CN1711008A (en) * | 2005-07-15 | 2005-12-21 | 北京中盾安民分析技术有限公司 | Sectional-drum-shape X-ray source |
| CN201681787U (en) * | 2010-05-13 | 2010-12-22 | 杭州万东电子有限公司 | X-ray tube provided with lead protection device |
| CN201780961U (en) * | 2010-07-15 | 2011-03-30 | 赵福元 | Breast X-ray tube |
| CN102986303A (en) * | 2010-07-21 | 2013-03-20 | 株式会社蛟簿 | X-ray generation device |
| CN202385376U (en) * | 2011-12-16 | 2012-08-15 | 宿迁波尔高压电源有限公司 | X-ray source |
| CN108028159A (en) * | 2015-08-10 | 2018-05-11 | 东芝电子管器件株式会社 | The manufacture method of X-ray tube, X-ray pipe device and X-ray pipe device |
| CN208336144U (en) * | 2018-07-17 | 2019-01-04 | 公安部第一研究所 | A kind of x-ray source radiation protection component for metal ceramic tube |
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| Publication number | Publication date |
|---|---|
| CN108922843B (en) | 2023-10-20 |
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