CN111741586A - Electron accelerator based on extended interaction self-excited oscillator (EIO) - Google Patents
Electron accelerator based on extended interaction self-excited oscillator (EIO) Download PDFInfo
- Publication number
- CN111741586A CN111741586A CN202010541316.7A CN202010541316A CN111741586A CN 111741586 A CN111741586 A CN 111741586A CN 202010541316 A CN202010541316 A CN 202010541316A CN 111741586 A CN111741586 A CN 111741586A
- Authority
- CN
- China
- Prior art keywords
- cathode
- electron beam
- coupling hole
- self
- oscillator
- 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
- 230000003993 interaction Effects 0.000 title claims abstract description 37
- 230000008878 coupling Effects 0.000 claims abstract description 37
- 238000010168 coupling process Methods 0.000 claims abstract description 37
- 238000005859 coupling reaction Methods 0.000 claims abstract description 37
- 238000010894 electron beam technology Methods 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 230000001133 acceleration Effects 0.000 claims abstract description 22
- 230000005684 electric field Effects 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000010355 oscillation Effects 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910052742 iron Inorganic materials 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims 2
- 238000005219 brazing Methods 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000000737 periodic effect Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H5/00—Direct voltage accelerators; Accelerators using single pulses
- H05H5/02—Details
- H05H5/03—Accelerating tubes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H9/00—Linear accelerators
- H05H9/04—Standing-wave linear accelerators
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- High Energy & Nuclear Physics (AREA)
- Particle Accelerators (AREA)
Abstract
An apparatus for accelerating electrons using an extended interaction self-excited oscillator (EIO) is disclosed. The structure of the device comprises: the cathode comprises a cathode 1(1), a cathode 2(2), an expansion interaction self-excited oscillator (3), a metal waveguide (4) and a coupling hole (5). The cathode 1(1), the cathode 2(2) are composed of a pure metal cathode and a layer of pure iron. The expansion interaction self-excited oscillator (3) generates electromagnetic waves after the interaction of the injected waves through the self-excited oscillation of the electron beam and the metal. The coupling hole (5) is used for enabling electromagnetic waves to pass through under the condition that energy loss is reduced as much as possible. The metal waveguide is used for receiving electromagnetic waves passing through the coupling hole, forming standing waves in the channel and stabilizing the electric field with periodic variation. And adding another electron beam into the metal waveguide (4), wherein when the electron beam passes through the position of the coupling hole (5), the electric field gives energy to the electron beam to accelerate the electron beam, so that the electron beam drifts through a channel of the waveguide, and the velocity of the electron beam is screened through a magnetic field at a waveguide port, thereby achieving the purpose of the accelerator. The device solves the problem that the original electron accelerator is too large in size, and has a good acceleration effect.
Description
Technical Field
The invention relates to a device for accelerating electrons based on an extended interaction self-excited oscillator, in particular to a novel miniaturized electronic accelerating device.
Background
A charged particle accelerator is an electromagnetic device that manually accelerates various types of charged particles to higher energies by means of electric fields of different forms, and is often referred to as a "particle accelerator" and simply "accelerator". The acceleration electric field forms are different according to the types of accelerated particles, and the trajectories followed by the particles in the acceleration process are different, so that the acceleration is classified into various types of accelerators. An electron linear accelerator is an accelerating device that accelerates electrons using a microwave electromagnetic field and has a linear motion trajectory.
The electron linear accelerator has two acceleration modes: a traveling wave acceleration mode and a standing wave acceleration mode.
The traveling wave acceleration mode is a mode in which electrons are accelerated in an acceleration gap having an electric field, and if the gap is made to move at the same speed as the electrons, the accelerated electrons can be always in the acceleration gap, that is, the acceleration field can be always sensed, and the acceleration can be continued.
The standing wave acceleration mode is that alternating power supplies with the same frequency are respectively connected between a series of double-cylinder electrodes, and if the frequency and the distance between the double-cylinder electrodes satisfy a certain relation, electrons can be continuously accelerated.
Accelerators that have been used at present include a gyrotron accelerator (mainstream), a magnetron accelerator, a traveling wave tube accelerator, and the like. But has the characteristics of too large volume, too low power, poor acceleration effect and the like.
Disclosure of Invention
In order to overcome the defects that the traditional electron linear accelerator requires large power and large volume; the invention provides a new device for accelerating linear electrons by a vacuum electron tube, aiming at solving the problem of electron acceleration of certain output power under the condition of small volume.
The invention adopts the following specific scheme: the device for heating the cathode by electromagnetic induction structurally comprises an extended interaction self-excited oscillator, a metal waveguide and the cathode, and is characterized in that the metal waveguide is welded above the extended interaction self-excited oscillator in a vacuum mode.
Further, the vacuum channel of the metal waveguide is parallel to the expansion interaction self-oscillation oscillator.
Further, the two cathode emission directions are parallel, and the vertical direction is on a straight line.
Further, the coupling hole is opened above the extended interaction oscillator to connect the extended interaction free-running oscillator with the vacuum portion of the metal waveguide.
Further, the coupling hole is perpendicular to the metal waveguide and the extended interaction self-oscillator.
Specifically, the device for accelerating linear electrons based on the extended interaction self-excited oscillator is characterized in that the cathode 1(1) emits electron beams, the electron beams enter the extended interaction self-excited oscillator to generate injection wave interaction, and a high-frequency conversion electric field is generated. The high-frequency electric field penetrates through the coupling hole and enters the metal waveguide to form standing waves, and the standing waves interact with the electron beam emitted by the cathode 2(2) to convert the electric field energy into electron kinetic energy and accelerate the electron beam.
Compared with the prior art, the invention has the following advantages: 1, the accelerator of the invention has small volume, large power and good accelerating effect.
2, the invention can realize better acceleration effect by accelerating through a plurality of coupling holes.
3, the accelerator has good expansibility.
4, the invention directly couples the electric field through the coupling hole to form a standing wave field, and the generated field intensity is stronger.
Drawings
FIG. 1 is a schematic perspective view of the structure of an extended interaction free-running oscillator accelerator of the present invention;
fig. 2 is a schematic longitudinal sectional view of the structure of an extended interaction free-running oscillator accelerator of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1, an apparatus for accelerating electrons based on an extended interaction free-running oscillator (EIO). The structure of the device comprises: the cathode comprises a cathode 1(1), a cathode 2(2), an expansion interaction self-excited oscillator (3), a metal waveguide (4) and a coupling hole (5).
As shown in fig. 2, the acceleration process is embodied as: the cathode 2(2) emits electron beams, the electron beams enter the extended interaction self-excited oscillator (3), and electromagnetic waves are generated after the electron beams and the metal are subjected to self-excited oscillation and wave injection interaction. The coupling hole (5) is used for enabling electromagnetic waves to pass through under the condition that energy loss is reduced as much as possible. The metal waveguide is used for receiving electromagnetic waves passing through the coupling hole, forming standing waves in the coupling hole and stabilizing the electric field with periodic variation. The cathode 1(1) emits a second electron beam to enter the metal waveguide (4), when the position of the coupling hole (5) is located, the electric field gives energy to the electron beam to accelerate the electron beam, the electron beam drifts through a channel of the waveguide, and the speed of the electron beam is screened through a magnetic field of a waveguide port, so that the purpose of linear acceleration of the electron beam is achieved. The device solves the problem that the original electron accelerator is too large in size, and has a good acceleration effect.
The cathode 2(2) emits an electron beam to enter an extended interaction self-excited oscillator (EIO), wave injection interaction is carried out at a metal grating in the EIO, and then the cavities at the upper end and the lower end of the EIO are subjected to first coupling of an electric field to generate a periodically-converted electric field (namely positive and negative). The whole cavity is in the same electric field mode (2 pi), but is not limited to the 2 pi mode, so that the electric field of the cavity entering the coupling hole (5) is ensured to keep the same direction.
Calculation of the specific width of the coupling aperture (5): a voltage is applied to the cathode (2), and an electron beam is emitted, enters the extended interaction self-oscillation oscillator (3), and generates an electromagnetic wave after self-oscillation. Based on the frequency f of the generated electromagnetic wave, we can use the formula
The time t for passing through the coupling hole (5) is obtained. Then according to the voltage applied to the cathode (1), generatingVelocity v of movement of the electron beam0To obtain the length l of the coupling hole (5)n＝t·v0·n(n＝1,2,3…)。
When an extended interaction self-excited oscillator (EIO) based device for accelerating electrons has two or three (or even more, theoretically infinite) coupling holes, it is required that the same electron always be in an accelerating electric field or a decelerating electric field region during the process of entering the coupling holes for speed change. Wherein the gap calculating part of the coupling hole (calculated as a single electron): the electron obtains an acceleration energy E in the electric field1The theory of relativity is that the electron mass m is m0R (r is a relativistic factor), the equation of Mass energy E2＝mc2，E3＝E2+E1Obtaining a velocity of
The adjacent distance of the coupling holes is
(n＝1,2,3…)。
As the self-electric field in the extended interaction self-oscillation oscillator shows positive and negative periodic variation, the electron beam emitted by the cathode 1(1) meets an accelerating or decelerating electric field at the coupling hole, so that the electron beam drifts in the metal waveguide (4) to form electron beam clusters with different speeds. In order to obtain pure accelerated electrons, the cathode (1) can be further improved, a photocathode is used as an electron beam emitting end, the emitting time and the emitting period of an electron beam are controlled, the electron beam is always in an accelerating electric field when passing through the coupling hole, and the electron screening effect of the accelerator is realized.
The device for accelerating electrons based on an extended interaction free-running oscillator (EIO) proposed by the present invention is described in detail above, and the principle and the implementation of the present invention are explained herein by applying an example, and the description of the above embodiment is only used to help understand the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. An apparatus for accelerating an electron beam using an extended interaction free running oscillator, the structure comprising: the cathode comprises a cathode 1(1), a cathode 2(2), an expansion interaction self-excited oscillator (3), a metal waveguide (4) and a coupling hole (5), and is characterized in that the metal waveguide (4) is fixed on the expansion interaction self-excited oscillator (3) through vacuum welding.
2. A cathode 1, 2 according to claim 1, wherein the cathodes 1(2), 2(2) are vertically identical and the emission directions are parallel.
3. A cathode according to claim 2 wherein the pure metal cathode is brazed to the pure iron with a layer of brazing material therebetween.
4. Vacuum welding an extended interaction free running oscillator with a metal waveguide according to claim 1, wherein the passage of the metal waveguide is parallel to the extended interaction free running oscillator.
5. The coupling aperture of claim 1, wherein the coupling aperture is perpendicular to the waveguide and the extended interaction free running oscillator.
6. The coupling hole according to claim 5, wherein the coupling hole connects the extended interaction free running oscillator and the metal waveguide, but does not open, and only performs an internal connection function.
7. The coupling holes of claim 5, wherein the number of the coupling holes is not limited to one coupling hole, and the multiple coupling holes can be accelerated together by specific calculation, so as to achieve better acceleration effect.
8. An apparatus for accelerating electrons by using an extended interaction self-excited oscillator is characterized in that a cathode 2(2) emits an electron beam, the electron beam enters the extended interaction self-excited oscillator (3) to generate self-excited oscillation to form an electric field, the electric field is coupled into a metal waveguide through a coupling hole, and a standing wave field is formed in the coupling hole. The cathode 1(1) emits electron beams into the metal waveguide 4, passes through the coupling hole 5, and performs a standing wave acceleration process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541316.7A CN111741586A (en) | 2020-06-15 | 2020-06-15 | Electron accelerator based on extended interaction self-excited oscillator (EIO) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541316.7A CN111741586A (en) | 2020-06-15 | 2020-06-15 | Electron accelerator based on extended interaction self-excited oscillator (EIO) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111741586A true CN111741586A (en) | 2020-10-02 |
Family
ID=72649206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010541316.7A Pending CN111741586A (en) | 2020-06-15 | 2020-06-15 | Electron accelerator based on extended interaction self-excited oscillator (EIO) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111741586A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658733A (en) * | 2004-02-18 | 2005-08-24 | 谢家麟 | Klystron synchronous used as high-efficient accelerator of microwave source and electronic source |
| CN104658838A (en) * | 2015-02-15 | 2015-05-27 | 电子科技大学 | Radial EIO (extended interaction oscillator) for high-power source |
| CN105261539A (en) * | 2015-08-31 | 2016-01-20 | 电子科技大学 | Low-voltage extended interaction slow-wave device |
| CN106997838A (en) * | 2017-04-18 | 2017-08-01 | 电子科技大学 | A kind of millimeter wave extension interaction device of use coaxial resonant cavity and many electrons’ system |
| CN107331592A (en) * | 2017-07-04 | 2017-11-07 | 电子科技大学 | A kind of high-frequency structure of both-end output extension interaction oscillator |
| CN109256309A (en) * | 2018-08-28 | 2019-01-22 | 电子科技大学 | A kind of S-band miniaturization metamaterial extension interaction oscillator |
| CN109273814A (en) * | 2018-11-05 | 2019-01-25 | 深圳铭杰医疗科技有限公司 | Waveguide window and accelerating tube based on racetrack coupling aperture |
| CN109285748A (en) * | 2017-07-20 | 2019-01-29 | 吴绍飞 | A kind of low-voltage extension interaction slow-wave device |
| CN109545638A (en) * | 2018-11-20 | 2019-03-29 | 西北核技术研究所 | A kind of resonant cavity and the Terahertz of intersection construction extend interaction oscillator |
| CN109559960A (en) * | 2017-09-27 | 2019-04-02 | 南京誉凯电子科技有限公司 | A kind of low-voltage extension interaction slow-wave device |
| CN109890122A (en) * | 2019-03-08 | 2019-06-14 | 江苏安德信超导加速器科技有限公司 | The stationary wave electron accelerating structure of monocycle π mould |
| CN110364797A (en) * | 2019-02-28 | 2019-10-22 | 深圳铭杰医疗科技有限公司 | A kind of waveguide, waveguide assemblies and accelerator system |
| CN110719683A (en) * | 2019-09-23 | 2020-01-21 | 西安空间无线电技术研究所 | Linear accelerating tube waveguide coupler |
| CN111180296A (en) * | 2020-01-07 | 2020-05-19 | 电子科技大学 | Broadband extension interaction amplifier circuit |
-
2020
- 2020-06-15 CN CN202010541316.7A patent/CN111741586A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658733A (en) * | 2004-02-18 | 2005-08-24 | 谢家麟 | Klystron synchronous used as high-efficient accelerator of microwave source and electronic source |
| CN104658838A (en) * | 2015-02-15 | 2015-05-27 | 电子科技大学 | Radial EIO (extended interaction oscillator) for high-power source |
| CN105261539A (en) * | 2015-08-31 | 2016-01-20 | 电子科技大学 | Low-voltage extended interaction slow-wave device |
| CN106997838A (en) * | 2017-04-18 | 2017-08-01 | 电子科技大学 | A kind of millimeter wave extension interaction device of use coaxial resonant cavity and many electrons’ system |
| CN107331592A (en) * | 2017-07-04 | 2017-11-07 | 电子科技大学 | A kind of high-frequency structure of both-end output extension interaction oscillator |
| CN109285748A (en) * | 2017-07-20 | 2019-01-29 | 吴绍飞 | A kind of low-voltage extension interaction slow-wave device |
| CN109559960A (en) * | 2017-09-27 | 2019-04-02 | 南京誉凯电子科技有限公司 | A kind of low-voltage extension interaction slow-wave device |
| CN109256309A (en) * | 2018-08-28 | 2019-01-22 | 电子科技大学 | A kind of S-band miniaturization metamaterial extension interaction oscillator |
| CN109273814A (en) * | 2018-11-05 | 2019-01-25 | 深圳铭杰医疗科技有限公司 | Waveguide window and accelerating tube based on racetrack coupling aperture |
| CN109545638A (en) * | 2018-11-20 | 2019-03-29 | 西北核技术研究所 | A kind of resonant cavity and the Terahertz of intersection construction extend interaction oscillator |
| CN110364797A (en) * | 2019-02-28 | 2019-10-22 | 深圳铭杰医疗科技有限公司 | A kind of waveguide, waveguide assemblies and accelerator system |
| CN109890122A (en) * | 2019-03-08 | 2019-06-14 | 江苏安德信超导加速器科技有限公司 | The stationary wave electron accelerating structure of monocycle π mould |
| CN110719683A (en) * | 2019-09-23 | 2020-01-21 | 西安空间无线电技术研究所 | Linear accelerating tube waveguide coupler |
| CN111180296A (en) * | 2020-01-07 | 2020-05-19 | 电子科技大学 | Broadband extension interaction amplifier circuit |
Non-Patent Citations (1)
| Title |
|---|
| 黄 华等: "长脉冲相对论扩展互作用腔振荡器的初步研", 《物理学报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2812467A (en) | Electron beam system | |
| US3463959A (en) | Charged particle accelerator apparatus including means for converting a rotating helical beam of charged particles having axial motion into a nonrotating beam of charged particles | |
| US7253426B2 (en) | Structures and methods for coupling energy from an electromagnetic wave | |
| US2725499A (en) | High frequency amplifying device | |
| US7557365B2 (en) | Structures and methods for coupling energy from an electromagnetic wave | |
| US2312723A (en) | Electron discharge device | |
| US3457450A (en) | High frequency electron discharge device | |
| US4393332A (en) | Gyrotron transverse energy equalizer | |
| Jiang et al. | Numerical design and optimization of a curved collector for a Q-band gyro-traveling wave tube | |
| CN111741586A (en) | Electron accelerator based on extended interaction self-excited oscillator (EIO) | |
| Balkcum et al. | High-power coaxial ubitron oscillator: Theory and design | |
| US3069587A (en) | Travelling wave device | |
| US5283534A (en) | High frequency amplifying apparatus with a collector which has a periodic amplitude variable longitudinal magnetic field therein | |
| Mahto et al. | Oscillation condition and efficiency analysis of the reltron | |
| US3091719A (en) | Microwave transducer | |
| US2794146A (en) | Ultra-high frequency amplifying tube | |
| US2808532A (en) | Space harmonic amplifiers | |
| US2940001A (en) | Electron accelerator | |
| GB712565A (en) | Improvements in or relating to travelling wave magnetron tubes | |
| US7750572B2 (en) | High-power microwave tube with beam spreading in the collector | |
| US11373834B2 (en) | Apparatus for generating electromagnetic waves | |
| US2938139A (en) | Velocity modulation tubes | |
| US4988956A (en) | Auto-resonant peniotron having amplifying waveguide section | |
| US4491765A (en) | Quasioptical gyroklystron | |
| US20020149316A1 (en) | Electron gun |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201002 |