CN108447756A - A kind of rotating electron rifle annular X-ray emitter - Google Patents
A kind of rotating electron rifle annular X-ray emitter Download PDFInfo
- Publication number
- CN108447756A CN108447756A CN201810353591.9A CN201810353591A CN108447756A CN 108447756 A CN108447756 A CN 108447756A CN 201810353591 A CN201810353591 A CN 201810353591A CN 108447756 A CN108447756 A CN 108447756A
- Authority
- CN
- China
- Prior art keywords
- ring
- annular
- ray
- anode
- ray emitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/08—Anodes; Anti cathodes
- H01J35/12—Cooling non-rotary anodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/08—Anodes; Anti cathodes
Landscapes
- X-Ray Techniques (AREA)
Abstract
The invention discloses a kind of rotating electron rifle annular X-ray emitters, including the electron gun being arranged on ring vaccum intracavitary annular bearing, the anode scoring ring of fixed setting, and the detector rings being coaxially disposed side by side with anode scoring ring.The anode target cooling water channel and detector cooling water channel of annular are respectively arranged in the ring body of anode scoring ring and detector rings.Electron gun rotates on annular bearing around the axle center of anode scoring ring.The fixed metallic target of annular of the invention no longer carries out the rotation of high speed around axle center, to make the stressing conditions of metallic target greatly improve.The heat that metallic target generates is taken away export by the coolant liquid in the cooling pipe of annular, solves the problems, such as that the overheat of metallic target and thermal capacity are limited, to enable X-ray emitter to continuously send out ray for a long time so that metallic target is hardly damaged.Since endless metal target no longer rotates, metallic target is hardly damaged so that the service life of X-ray emitter is greatly improved.
Description
Technical field
The invention belongs to technical field of medical equipment, more particularly to a kind of rotating electron rifle annular X-ray emitter.
Background technology
In medical imaging field, X-ray emitter is the core equipment of X ray image equipment.X-ray emitter generates X
After ray, Radiolucent object, later the ray through overdamping get on detector, detector receive X-ray simultaneously generate figure
As data.
The basic principle of X-ray emitter is that the electronics that electron gun generates passes through the acceleration of electric field, is beaten later in metallic target
On（This metallic target is generally tungsten alloy）, make the free electron of the part of atoms on metallic target to high energy order transition later, subsequently
This high level free electron discharges photon to low energy order transition.This photon is x-ray photon.In above structure, electronics
Rifle and metallic target are encapsulated in a glass container, are vacuum state in container.
Among the above process, about 1 percent conversions of electric energy are fully entered for X-ray, remaining 90 about percent
Nine energy converts for heat.Therefore in order to lasting generation X-ray, metallic target has prodigious thermal capacity, Huo Zhejin
Belong to the heat generated on target to allow for quickly conducting.Due to one of the electronics constant bombardment metallic target after acceleration
The temperature in the region of very little, this region can be very high, and prolonged bombardment can lead to metal evaporation herein, influence follow-up X and penetrate
The generation of line.In order to solve the problems, such as this, metallic target has been designed to discoid and can be rotatable about an axis, and allows electron beam to exist with this
The bombarded point of metallic target becomes toroid.But it is difficult export that the problem of thus bringing, which is the heat generated on rotating metallic target,
（Ensure to allow heat that can continue to export while persistently rotation）.So the problem of bringing is, X-ray emitter cannot continue to grow
The work of time, meanwhile, in order to ensure the lasting unwrapping wire of a period of time, the volume of metallic target is bigger, is ensured with this bigger
Thermal capacity.The above problem results in that X-ray emitter volume is big, and weight is big, cannot continue unwrapping wire for a long time.Simultaneously because
The shell of vacuum chamber is glass material, easily broken, and metallic target wants long-time high speed rotation when working, and metallic target is fragile, into
And result in X-ray emitter and integrally easily damage, service life is very short.
Invention content
Present invention aims in view of the drawbacks of the prior art, providing one kind can quickly export heat, continues unwrapping wire, make
With the rotating electron rifle annular X-ray emitter of long lifespan.
The present invention to achieve the above object, adopts the following technical scheme that：
A kind of rotating electron rifle annular X-ray emitter, including electron gun, anode scoring ring and detector rings, it is characterised in that：Institute
State the fixed setting of anode scoring ring；The electron gun is arranged on the rotary part of ring vaccum intracavitary, around the axis of anode scoring ring
The heart rotates.
It is further characterized by：The rotary part is annular bearing, and the electron gun is fixed at annular bearing
On inner ring.
Further：The annular bearing is located in vacuum (-tight) housing ring, and the vacuum (-tight) housing ring cooperatively forms institute with anode scoring ring
State ring vaccum chamber.
There is ray window ring, ray window ring outgoing described in X-ray transparent on the vacuum (-tight) housing ring inner wall.
The X-ray of outgoing forms X-ray covering of the fan；The entire detector rings of X-ray covering of the fan covering of rotation
Search coverage.
It is further further characterized in that：It is provided with annular cooling water in the ring body of the anode scoring ring and/or detector rings
Road.
The ring vaccum chamber, anode scoring ring and detector rings are coaxially disposed side by side.
The electron beam of the electron gun transmitting, to directive anode scoring ring, is penetrated along the anode target annulate shaft after X ray excited
To the search coverage of the detector rings opposite with incoming position.
Present invention tool has the advantage that：
1. solving the problems, such as that metallic target is easily damaged.Metallic target used in the present invention is the fixed metallic target of annular, due to
Metallic target no longer carries out the rotation of high speed around axle center, to make the stressing conditions of metallic target greatly improve.
2. solving the problems, such as that X-ray emitter metallic target is not easy quickly to export heat.Annular used in the present invention
The cooling pipe of annular is built-in in metallic target, cooling pipe is connected with extraneous radiator, the coolant liquid in cooling pipe
The heat that metallic target generates is taken away, and heat is dissipated in environment by extraneous radiator.Heat is generated on metallic target
It is rapidly exported, and then metallic target is caused to be hardly damaged.
3. solving the problems, such as that X-ray emitter can not continue unwrapping wire for a long time.The present invention is due to the use of annular
Fixation metallic target, the coolant liquid in metallic target can rapidly export the heat that metallic target generates, and solve metallic target
Overheat and the limited problem of thermal capacity, to enable X-ray emitter to continuously send out ray for a long time.
4. solving the problems, such as X-ray emitter short life.The endless metal target of the present invention no longer rotates, and metallic target is not easy
Damage so that the service life of X-ray emitter is greatly improved.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2,3 are diagrammatic cross-section of the present invention.
Wherein, 1- electron guns；2- anode scoring rings；3- detector rings；4- annular bearings；5- vacuum (-tight) housing rings；6-X rays are fanned
Face；7- ray window rings；21- anode target cooling water channels；31- detector cooling water channels.
Specific implementation mode
A kind of rotating electron rifle annular X-ray emitter as shown in Figure 1, including be arranged in ring vaccum intracavitary annular bearing
Electron gun 1 on 4, the anode scoring ring 2 and detector rings 3 of fixed setting.Ring vaccum chamber, anode scoring ring 2 and detector rings 3
It is coaxially disposed side by side.It is respectively arranged with the anode target cooling water channel 21 of annular in the ring body of anode scoring ring 2 and detector rings 3 and visits
Survey device cooling water channel 31.Electron gun 1 rotates on annular bearing 4 around the axle center of anode scoring ring 2.
Annular bearing 4 is located in vacuum (-tight) housing ring 5, and vacuum (-tight) housing ring 5 cooperatively forms ring vaccum chamber with anode scoring ring 5.Electronics
For the electron beam that rifle 1 emits along the axial directive anode scoring ring 2 of anode scoring ring 2, X ray excited rear directive is opposite with incoming position
The search coverage of detector rings 3.There is ray window ring 7, X-ray transparent ray window ring 7 to be emitted on 5 inner wall of vacuum (-tight) housing ring.Outgoing
X-ray form X-ray covering of the fan 6；The X-ray covering of the fan 6 of rotation covers the search coverage of entire detector rings 3.
Metallic target used in the present invention is endless metal target, there is the cooling pipe of annular in endless metal target.Cooling tube
Coolant liquid in road takes away rapidly the heat that metallic target generates.Electron gun is fixed on the inner ring of annular bearing（It is alternatively outer ring）
On, the outer ring of annular bearing is fixed on the inside of X-ray emitter shell, and electron gun is rotated around the axle center of anode scoring ring.Make
The stressing conditions of metallic target greatly improve so that metallic target is hardly damaged.X-ray emitter shell is by endless metal target, electronics
Rifle fixed frame, electron gun wrap up, and in the outlet of X-ray, there are one X-ray window, X-ray window is fixed on X-ray
On the shell of device.The X electron guns of above-mentioned rotation launching electronics simultaneously, to make on metal ring target to be generated on different positions
X-ray.Metal evaporation caused by prevent constant bombardment metallic target the same area.
Claims (8)
1. a kind of rotating electron rifle annular X-ray emitter, including electron gun, anode scoring ring and detector rings, it is characterised in that：
The anode scoring ring fixed setting；The electron gun is arranged on the rotary part of ring vaccum intracavitary, around anode scoring ring
Axle center rotates.
2. rotating electron rifle annular X-ray emitter as described in claim 1, it is characterised in that：The rotary part is ring
Shape bearing, the electron gun are fixed on annular bearing inner ring.
3. rotating electron rifle annular X-ray emitter as claimed in claim 2, it is characterised in that：The annular bearing is located at
In vacuum (-tight) housing ring, the vacuum (-tight) housing ring cooperatively forms the ring vaccum chamber with anode scoring ring.
4. rotating electron rifle annular X-ray emitter as claimed in claim 3, it is characterised in that：The vacuum (-tight) housing ring inner wall
Going up has ray window ring, ray window ring outgoing described in X-ray transparent.
5. rotating electron rifle annular X-ray emitter as claimed in claim 4, it is characterised in that：The X-ray shape of outgoing
At X-ray covering of the fan；The search coverage of the entire detector rings of X-ray covering of the fan covering of rotation.
6. rotating electron rifle annular X-ray emitter as described in any one in claim 1-5, it is characterised in that：The anode
Annular cooling water road is provided in the ring body of scoring ring and/or detector rings.
7. rotating electron rifle annular X-ray emitter as described in any one in claim 1-5, it is characterised in that：The annular
Vacuum chamber, anode scoring ring and detector rings are coaxially disposed side by side.
8. rotating electron rifle annular X-ray emitter as claimed in claim 7, it is characterised in that：The electron gun transmitting
Electron beam along the anode target annulate shaft to directive anode scoring ring, it is X ray excited after the directive detector opposite with incoming position
The search coverage of ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810353591.9A CN108447756A (en) | 2018-04-19 | 2018-04-19 | A kind of rotating electron rifle annular X-ray emitter |
| CN201910307913.0A CN109830421B (en) | 2018-04-19 | 2019-04-17 | Annular X-ray generator of rotary electron gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810353591.9A CN108447756A (en) | 2018-04-19 | 2018-04-19 | A kind of rotating electron rifle annular X-ray emitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108447756A true CN108447756A (en) | 2018-08-24 |
Family
ID=63200236
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810353591.9A Pending CN108447756A (en) | 2018-04-19 | 2018-04-19 | A kind of rotating electron rifle annular X-ray emitter |
| CN201910307913.0A Active CN109830421B (en) | 2018-04-19 | 2019-04-17 | Annular X-ray generator of rotary electron gun |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910307913.0A Active CN109830421B (en) | 2018-04-19 | 2019-04-17 | Annular X-ray generator of rotary electron gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108447756A (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104737C (en) * | 1998-08-10 | 2003-04-02 | 徐怀宇 | X-ray tube with shift cathode |
| US7068749B2 (en) * | 2003-05-19 | 2006-06-27 | General Electric Company | Stationary computed tomography system with compact x ray source assembly |
| US7483518B2 (en) * | 2006-09-12 | 2009-01-27 | Siemens Medical Solutions Usa, Inc. | Apparatus and method for rapidly switching the energy spectrum of diagnostic X-ray beams |
| CN208225839U (en) * | 2018-04-19 | 2018-12-11 | 新瑞阳光粒子医疗装备(无锡)有限公司 | A kind of rotating electron rifle annular x ray generator |
-
2018
- 2018-04-19 CN CN201810353591.9A patent/CN108447756A/en active Pending
-
2019
- 2019-04-17 CN CN201910307913.0A patent/CN109830421B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109830421B (en) | 2021-12-10 |
| CN109830421A (en) | 2019-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1304117C (en) | X-ray tube with liquid cooled heat receptor | |
| US3836805A (en) | Rotating anode x-ray tube | |
| US2209963A (en) | X-ray generating device | |
| US6041100A (en) | Cooling device for x-ray tube bearing assembly | |
| CA1311011C (en) | High intensity x-ray source using bellows | |
| US6125169A (en) | Target integral heat shield for x-ray tubes | |
| US20120121065A1 (en) | Method and apparatus of differential pumping in an x-ray tube | |
| US3646380A (en) | Rotating-anode x-ray tube with a metal envelope and a frustoconical anode | |
| US20070153978A1 (en) | Compact source with very bright x-ray beam | |
| CN208225839U (en) | A kind of rotating electron rifle annular x ray generator | |
| US7643614B2 (en) | Method and apparatus for increasing heat radiation from an x-ray tube target shaft | |
| KR101824135B1 (en) | Thermal damage preventing rotating anode type X-ray tube | |
| US9449782B2 (en) | X-ray tube target having enhanced thermal performance and method of making same | |
| CN108447756A (en) | A kind of rotating electron rifle annular X-ray emitter | |
| CN108366483A (en) | Accelerating tube and clinac with the accelerating tube | |
| CN208077937U (en) | A kind of annular X-ray emitter of fixed electron gun | |
| EP1096544A1 (en) | X-ray tube | |
| CN108417471A (en) | A kind of annular X-ray emitter of fixed electron gun | |
| CN111430204A (en) | X-ray tube and medical imaging apparatus | |
| JP2005520300A (en) | Liquid metal heat pipe structure for X-ray targets | |
| JP2008084697A (en) | Rotating anode x-ray tube device | |
| US9202664B2 (en) | Finned anode | |
| CN111146058A (en) | Magnetic fluid sealed multi-arm cathode X-ray tube | |
| CN110473757B (en) | X-ray tube, medical imaging equipment, temperature measurement system and bearing temperature measurement method | |
| CN211016989U (en) | Magnetic fluid sealed multi-arm cathode X-ray tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180824 |
|
| WD01 | Invention patent application deemed withdrawn after publication |