CN202563899U - Device for constraining electron beam injection under strong magnetic field - Google Patents
Device for constraining electron beam injection under strong magnetic field Download PDFInfo
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- CN202563899U CN202563899U CN2012202022020U CN201220202202U CN202563899U CN 202563899 U CN202563899 U CN 202563899U CN 2012202022020 U CN2012202022020 U CN 2012202022020U CN 201220202202 U CN201220202202 U CN 201220202202U CN 202563899 U CN202563899 U CN 202563899U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Abstract
The utility model discloses a device for constraining electron beam injection under a strong magnetic field. The device comprises a negative plate, a positive plate, a cathode, a first well plate and a second well plate. The negative plate and the positive plate are placed parallel to the direction of the magnetic field in a manner that the negative plate is opposite to the positive plate to form a drift electric field region after being applied with a positive voltage and a negative voltage respectively. The first well plate and the second well plate are placed along the direction of the magnetic field oppositely to form a potential well region after being applied with a same negative bias separately. The emitting surface of the cathode is located in the potential well, and the potential of the cathode surface of the cathode can not be lower than the potential of the well plates. According to the utility model, through the constraint of the potential well, an electron beam is effectively constrained in the direction parallel to the magnetic field and traverses the magnetic field at an electric field drift velocity. After the electron beam is generated by the cathode, the electron beam is constrained well in the direction parallel to the magnetic field and traverses magnetic lines of force, the electron beam will not drift along the magnetic lines of force, and the original magnetic field configuration will not be affected at the same time, and advantages of high injection efficiency as well as simple and practicable process implementation are realized.
Description
Technical field
The utility model belongs to electron beam injection technology, and electron beam crosses the magnetically confined device under particularly a kind of high-intensity magnetic field, and the utility model is particularly useful for controlled nuclear fusion engineering field.
Background technology
In high-energy physics and controlled fusion research; All need make electron beam cross magnetic line of force motion under a lot of situations; And under the situation that very strong magnetic field (referring generally to the magnetic field more than the 1T) exists; Electron beam does not have constraining force in the direction along magnetic field, can directly float along magnetic line of force major part, is difficult to cross the magnetic line of force and injects.
Addressing this problem traditional method has following several kinds, american documentation literature Patent Number:5,225,146; Date of Patent:1993 proposed a kind of principle through gradient B drift July 6 and in fusionplasma, injects electron beam; But this method need add magnet in electronics inlet both sides; This magnetic field that adds the magnet generation has changed the magnetic field of original device itself; Destroy the position shape in original magnetic field, greatly reduced the actual effect of this method.
Patent documentation CN 1112710C has proposed a kind of method of utilizing electrical drift to cross and has injected electron beam; But under the condition of high-intensity magnetic field more; Most electronics directly floats along the magnetic line of force; Have only the electronics of few part effectively to inject, though this method is not destroyed the position shape in original magnetic field, electron injection efficiency is not very high for the application under the high-intensity magnetic field more.
This has just proposed a brand-new problem to the researchist of this area, as why not influencing background magnetic field, and efficiency ratio is higher.The utility model does not need very complicated technology means through improving electric field position shape, just can solve this problem
The utility model content
The purpose of the utility model is to provide under a kind of high-intensity magnetic field electron beam to inject restraint device, this device solves under high-intensity magnetic field, electronics can not cross the magnetic line of force, walks to cause the problem that can not effectively inject and float along the magnetic line of force.
Electron beam injects the device of constraint under a kind of high-intensity magnetic field that the utility model provides, and it is characterized in that: this device comprises negative plate, positive plate, negative electrode, and first, second trap pole plate; Negative plate and with magnetic direction parallel placement relative with positive plate is used for after adding generating positive and negative voltage, forming the drift field district; First, second trap pole plate plate plate is placed along magnetic direction relatively, is used for after adding identical negative bias, forming the electromotive force well region; The surface of emission of negative electrode is in the potential energy well, and negative electrode can not be in than under the lower current potential of trap pole plate.
As the above-mentioned improvement of technical scheme about device, the surface of emission normal direction of negative electrode and the angle of negative plate normal direction are 50 °～70 °.
As the above-mentioned further improvement of technical scheme about device, the first trap pole plate, negative plate and the second trap pole plate fuse successively, form arc or curved shape, and the negative electrode oblique cutting is in negative plate.The first trap pole plate, negative plate and the second trap pole plate can move adjusting at the one dimension vertical direction.
The utlity model has following outstanding advantage and significant effect:
The utility model makes electron beam retrained effectively in the direction of parallel magnetic field through the constraint of potential energy well, crosses magnetic field with electrical drift speed.
The utility model device is after negative electrode produces electron beam, and electron beam is well retrained in the direction that is parallel to magnetic field, and crosses the magnetic line of force; And can not float along the magnetic line of force; Simultaneously also can not influence original magnetic field configuration, and the efficient of injecting is very high, the realization of technology is also simple.
Description of drawings
Figure of description is that electron beam injects the synoptic diagram that restraint device is used at controlled fusion research under schematic diagram and the described high-intensity magnetic field of the utility model.
Fig. 1 is the schematic diagram (X-Z plane) of the utility model method;
Fig. 2 is the schematic diagram (X-Y plane) of the utility model method;
Fig. 3 is the 3 dimensional drawing of the utility model device;
Fig. 4 is the structural representation of the utility model in controlled nuclear fusion device is used.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model be with the direction of magnetic field orthotropic on; Constructed new electric field position shape; This electric field is at the component that is parallel to magnetic direction perpendicular to the component of magnetic direction much larger than (referring generally to more than 10 times); Electric field component perpendicular to magnetic direction is called drift field, and the electric field component that is parallel to magnetic direction is called potential energy well, under the constraint of potential energy well; The electron beam of emission of cathode receives the effect of the electric field force component opposite with direction of motion and moves reciprocatingly along magnetic direction in potential energy well; Electron beam can well restrainedly under high-intensity magnetic field firmly be unlikely to float from the drift field district along the magnetic line of force, and electron beam crosses magnetic field through electrical drift and injects then.Briefly, the utility model is exactly that electron beam crosses magnetic field with electrical drift in the potential energy well of structure.
As shown in Figure 1, negative plate 1 and positive plate 2 relatively and parallel placements with magnetic direction, add generating positive and negative voltage respectively after; Form the drift field district, the first trap pole plate 3 and the second trap pole plate 4 are placed along magnetic direction relatively, add identical negative bias after; Form the electromotive force well region, electronics moves reciprocatingly along magnetic direction in potential energy well after coming out from emission of cathode; Cross magnetic field through electrical drift, roughly track is as shown in Figure 2.
Like Fig. 3, shown in Figure 4; Device places the fusion facility vacuum environment, according to the utility model method as long as provide electric field component to constitute potential energy well in direction along magnetic field, for engineering for simplicity; Negative plate 1 and trap pole plate 3 and trap pole plate 4 can be fused be negative plate assembly 6; Positive plate 2 is placed with negative plate assembly 6 relatively, the shape that negative plate assembly 6 is curved or crooked
In three-dimensional cartesian coordinate system, negative electrode 5 oblique cuttings in negative plate assembly 6, with the angle of z direction be 50 °～70 °; The degree of depth that the length that negative electrode 5 stretches into negative plate assembly 6 is no more than potential energy well is the crooked arc degree of depth of negative plate 6; During installation, electric field and controlled fusion facility magnetic field orthotropic that positive plate 2 and negative plate assembly 6 produce, negative electrode 5; Negative plate assembly 6 and positive plate 2, integral body all can move adjusting in the y direction.
During the work of the utility model device, positive plate 2 adds positive high voltage, and negative plate assembly 6 connects negative high voltage; Set up drift field between positive and negative pole plate, negative electrode 1 adds 100～300V negative bias, and negative plate assembly 6 forms potential energy well with negative electrode 5; Electron beam emits from negative electrode 5; In the potential energy well that negative electrode 5 and negative plate assembly 6 make up, receive the effect of electric field force component, move reciprocatingly, cross vertical to plasma 7 injections with drift velocity in the z direction in the x direction.
The utility model device also can be used for accelerator and magnetron sputtering technique.
Those skilled in the art will readily understand; The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (4)
1. electron beam injects the device of constraint under the high-intensity magnetic field, and it is characterized in that: this device comprises negative plate, positive plate, negative electrode, and first, second trap pole plate; Negative plate and with magnetic direction parallel placement relative with positive plate is used for after adding generating positive and negative voltage, forming the drift field district; First, second trap pole plate plate plate is placed along magnetic direction relatively, is used for after adding identical negative bias, forming the electromotive force well region; The surface of emission of negative electrode is in the potential energy well.
2. device according to claim 1 is characterized in that: the surface of emission normal direction of negative electrode and the angle of negative plate normal direction do
50°～70°。
3. device according to claim 1 and 2; It is characterized in that: the first trap pole plate, negative plate and the second trap pole plate fuse successively; Form arc or curved shape, the negative electrode oblique cutting is in negative plate, and negative electrode can not be in than under the lower current potential of trap pole plate.
4. device according to claim 3 is characterized in that: the first trap pole plate, negative plate and the second trap pole plate can move adjusting at the one dimension vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202022020U CN202563899U (en) | 2012-05-07 | 2012-05-07 | Device for constraining electron beam injection under strong magnetic field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202022020U CN202563899U (en) | 2012-05-07 | 2012-05-07 | Device for constraining electron beam injection under strong magnetic field |
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| CN202563899U true CN202563899U (en) | 2012-11-28 |
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| CN2012202022020U Expired - Fee Related CN202563899U (en) | 2012-05-07 | 2012-05-07 | Device for constraining electron beam injection under strong magnetic field |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708931A (en) * | 2012-05-07 | 2012-10-03 | 华中科技大学 | Electro beam ejection restraint method and device under strong magnetic field |
| CN113146013A (en) * | 2021-05-13 | 2021-07-23 | 鞍钢集团北京研究院有限公司 | Welding method for vacuum electron beam seal welding of magnetic titanium steel composite blank |
-
2012
- 2012-05-07 CN CN2012202022020U patent/CN202563899U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708931A (en) * | 2012-05-07 | 2012-10-03 | 华中科技大学 | Electro beam ejection restraint method and device under strong magnetic field |
| CN102708931B (en) * | 2012-05-07 | 2015-05-20 | 华中科技大学 | Electro beam ejection restraint method and device under strong magnetic field |
| CN113146013A (en) * | 2021-05-13 | 2021-07-23 | 鞍钢集团北京研究院有限公司 | Welding method for vacuum electron beam seal welding of magnetic titanium steel composite blank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20150507 |
|
| EXPY | Termination of patent right or utility model |