CN113345778B - Gyrotron energy transmission system - Google Patents
Gyrotron energy transmission system Download PDFInfo
- Publication number
- CN113345778B CN113345778B CN202110602981.7A CN202110602981A CN113345778B CN 113345778 B CN113345778 B CN 113345778B CN 202110602981 A CN202110602981 A CN 202110602981A CN 113345778 B CN113345778 B CN 113345778B
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- output waveguide
- gyrotron
- water
- transmission system
- energy transmission
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/005—Cooling methods or arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/12—Vessels; Containers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2223/00—Details of transit-time tubes of the types covered by group H01J2225/00
- H01J2223/005—Cooling methods or arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2223/00—Details of transit-time tubes of the types covered by group H01J2225/00
- H01J2223/12—Vessels; Containers
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- Microwave Tubes (AREA)
Abstract
The invention discloses a gyrotron energy transmission system, which comprises: the device comprises an output waveguide, a dielectric window which is not in contact with the output waveguide is arranged above the output waveguide, a support tube connected with the dielectric window is arranged at the periphery of the output waveguide, a first water tube and a second water tube are arranged on the side face of the support tube in a penetrating mode, and the support tube is connected with the output waveguide through a water baffle at the upper position of the first water tube and the upper position of the second water tube. According to the gyrotron energy transmission system, the output waveguide and the dielectric window are separated, the output waveguide and the water cooling structure are integrally designed, the radial size of the energy transmission system is effectively reduced, the design and processing difficulty of gyrotron magnets and the debugging difficulty of the gyrotron are reduced, meanwhile, the gyrotron energy transmission system performs effective heat insulation protection on the dielectric window, and the dielectric window is prevented from being damaged due to high-temperature heating.
Description
Technical Field
The invention relates to a vacuum electronic technology, in particular to a gyrotron energy transmission system.
Background
Terahertz waves are widely applied to the fields of secret communication, nondestructive detection, imaging and the like due to the unique characteristics of transient property, high penetrability, broadband property, coherence, low energy property and the like. One of the current bottlenecks limiting the application of terahertz technology is the lack of a high-power terahertz power source. The gyrotron is a high-power device developed based on the principle of free electron cyclotron resonance stimulated radiation. In the millimeter wave field, especially in the terahertz wave field, the output power of a gyrotron is the same as that of other traditional microwave tubes.
When the gyrotron works, the electron beam which is used up in interaction falls onto the output waveguide of the gyrotron, so that the output waveguide and the ceramic window have high temperature, and the ceramic window can be cracked in severe cases. Although the outside of the ceramic window of the traditional gyrotron is cooled by water, the heat on the ceramic window cannot be conducted away quickly. In addition, the energy transmission system with the water cooling structure is huge in volume, and great difficulty is brought to design and manufacture of the gyrotron magnet. Especially for terahertz gyrotron, the working magnetic field intensity of the gyrotron is very large, and the radial size of the gyrotron energy transmission system has direct influence on the design and processing of the strong magnet. Therefore, it is particularly urgent to study a miniaturized gyrotron energy transmission system.
Disclosure of Invention
The invention aims to provide a gyrotron energy transmission system, which is designed by separating an output waveguide from a dielectric window and integrating the output waveguide with a water cooling structure, so that the radial size of the energy transmission system is effectively reduced, the design and processing difficulty of a gyrotron magnet and the debugging difficulty of the gyrotron are reduced, and meanwhile, the gyrotron energy transmission system effectively insulates and protects the dielectric window from being damaged due to high-temperature heating of the dielectric window.
In order to achieve the above object, the present invention provides a gyrotron energy transmission system, including: the device comprises an output waveguide, wherein a dielectric window which is not in contact with the output waveguide is arranged above the output waveguide, a support tube connected with the dielectric window is arranged at the periphery of the output waveguide, a first water tube and a second water tube are arranged on the side face of the support tube in a penetrating mode, and the support tube is connected with the output waveguide through a water baffle at the upper position of the first water tube and the upper position of the second water tube.
Preferably, the distance between the dielectric window and the output waveguide is 2-4mm.
Preferably, the material of the dielectric window is alumina 95 porcelain, alumina 99 porcelain, beryllium oxide ceramic, monocrystalline material, diamond material, quartz material or boron nitride material.
Preferably, the connection position of the side surface of the dielectric window and the bracket tube is treated by metallization.
Preferably, the material of the bracket tube and the water tube is kovar or stainless steel.
Preferably, the outer surfaces of the support tube and the water tube are electroplated and coated with a layer of 5-25um metallic nickel.
Preferably, the material of the water baffle is kovar or stainless steel.
Preferably, the outer ends of the first water pipe and the second water pipe are provided with quick-mounting nuts.
Through above-mentioned technical scheme, this gyrotron energy transmission system is through separating output waveguide and dielectric window, output waveguide and water-cooling structure integrated design, the effectual radial dimension that reduces energy transmission system has reduced the design processing degree of difficulty of gyrotron magnet and the degree of difficulty of gyrotron debugging, and simultaneously, this gyrotron energy transmission system has carried out effectual thermal-insulated protection to dielectric window, has avoided dielectric window high temperature to be heated and damage.
Drawings
Fig. 1 is a schematic diagram of a preferred embodiment of a gyrotron energy transmission system.
Description of the reference numerals
1-a dielectric window; 2-a stent tube; 3-a first water pipe; 4-an output waveguide; 5-a second water pipe; 6-water baffle.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
In the present invention, unless otherwise indicated, terms such as "upper, lower, left, right, front, rear, and inner and outer" and the like are used merely to denote the orientation of the term in a conventional use state or are commonly understood by those skilled in the art, and should not be construed as limiting the term.
Referring to the gyrotron energy delivery system shown in fig. 1, the gyrotron energy delivery system comprises: the output waveguide, the top of output waveguide be provided with do not with the dielectric window 1 of output waveguide contact, the periphery of output waveguide be provided with the support pipe 2 that dielectric window 1 is connected, the side of support pipe 2 runs through and is provided with first water pipe 3 and second water pipe 5, support pipe 2 with be located between the output waveguide the upper position of first water pipe 3 and second water pipe 5 is passed through the breakwater 6 and is connected.
Through implementation of the technical scheme, the output waveguide and the dielectric window 1 are separated, the output waveguide and the water cooling structure are integrally designed, the radial size of the energy transmission system is effectively reduced, the design and processing difficulty of a gyrotron magnet and the debugging difficulty of the gyrotron are reduced, and meanwhile, the gyrotron energy transmission system performs effective heat insulation protection on the dielectric window 1, and the dielectric window 1 is prevented from being damaged due to high-temperature heating. The working principle of the invention is as follows: when the gyrotron works, liquid cooling is conducted, at the tail end of the output waveguide, the electron beam rapidly diverges due to no magnetic field constraint, and heat striking the output waveguide can be rapidly conducted away, so that the cooling function is realized.
In this embodiment, the distance between the dielectric window 1 and the output waveguide should be less than the length of 10 operating wavelengths, such as: the distance between the dielectric window 1 and the output waveguide is 2-4mm.
In this embodiment, the material of the dielectric window 1 should be a material having a high thermal conductivity, a small dielectric constant, a small loss tangent of the dielectric, a large mechanical strength, and being weldable with a metal, such as: the dielectric window 1 is made of aluminum oxide 95 porcelain, aluminum oxide 99 porcelain, beryllium oxide ceramic, monocrystalline material, diamond material, quartz material or boron nitride material.
In this embodiment, the connection points of the side surfaces of the dielectric window 1 to the support tube 2 are metallized. By such a process, the purpose is that the dielectric window 1 can be welded to the bracket tube 2 and is airtight.
In this embodiment, in order to ensure that the welding between the dielectric window 1 and the support tube 2, and between the support tube 2 and the water tube, is airtight, the material of the support tube 2 and the water tube is kovar or stainless steel.
In this embodiment, the outer surfaces of the stent tube 2 and the water tube are galvanically coated with a layer of 5-25um metallic nickel.
In this embodiment, the material of the water deflector 6 is kovar or stainless steel. In this way, the water deflector 6 is conveniently brazed, laser welded, electron beam welded or argon arc welded with the output waveguide and the ceramic bracket.
In this embodiment, the outer ends of the first water pipe 3 and the second water pipe 5 are provided with quick-fit nuts. The first water pipe 3 and the second water pipe 5 can be used as a water inlet or an output port, and can be quickly connected with an external structure through the arranged quick-mounting nut so as to reduce the radial size of the energy transmission system. The water-cooling structure is designed to cool the output waveguide so as to improve the power capacity of the gyrotron.
The beneficial effects of the invention are as follows: 1. the structure is designed integrally, the radial dimension of the energy transmission system is small, and the design and processing difficulty of the gyrotron magnet can be reduced; 2. the output waveguide is externally connected with a water cooling mechanism and is not in direct contact with the dielectric window 1, so that the heat capacity and stability of the energy transmission system are effectively improved.
For further explanation of the present invention, the present invention will be described by taking an example of an energy transmission system applied to 670GHz gyrotron:
in a 670GHz gyrotron energy transmission system, a dielectric window 1 is made of single crystal materials, the diameter of the dielectric window 1 is 36mm, and the connection positions of the side surface of the dielectric window 1 made of single crystal materials and a bracket tube 2 are metallized;
the bracket tube 2 is made of kovar material, a layer of metal nickel with the thickness of 10um is electroplated on the outer surface of the bracket tube 2, and a silver copper 28 solder wire is adopted for brazing between the dielectric window 1 of the monocrystalline material and the bracket tube 2 so as to ensure the vacuum tightness of the energy transmission system;
the distance between the output waveguide and the dielectric window 1 is 3mm, the material of the water baffle 6 is kovar material, the outer surface of the water baffle 6 is also electroplated with a layer of metal nickel with the thickness of 10um, the water baffle 6 and the output waveguide are welded by brazing, and the welding material is silver copper 28;
the water pipe material is kovar material, the outer surfaces of the first water pipe 3 and the second water pipe 5 are also electroplated with a layer of metal nickel with the thickness of 10um, and the first water pipe 3, the second water pipe 5 and the bracket pipe 2 are welded by brazing, and the welding material is silver copper 28;
the first water pipe 3 is positioned at a position 20mm below the water baffle 6 and used for water outflow, the second water pipe 5 is positioned at a position 720mm below the water baffle 6 and used for water inflow, and the outer ends of the first water pipe 3 and the second water pipe 5 are communicated with the outside through quick-mounting nuts;
the temperature of the cooling water is 10 ℃, the cooling water enters the tube body of the gyrotron from the lower part and comes out from the water outlet pipe at the upper part, the whole gyrotron is cooled, and especially, the heat of the electron beam bombarding the output waveguide can be taken away in time, so that the working stability of the gyrotron is greatly improved.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (7)
1. A gyrotron energy delivery system, the gyrotron energy delivery system comprising: the device comprises an output waveguide, wherein a dielectric window (1) which is not in contact with the output waveguide is arranged above the output waveguide, a support tube (2) connected with the dielectric window (1) is arranged at the periphery of the output waveguide, a first water tube (3) and a second water tube (5) are arranged on the side surface of the support tube (2) in a penetrating mode, and the support tube (2) and the output waveguide are connected through a water baffle (6) above the first water tube (3) and the second water tube (5);
the distance between the dielectric window (1) and the output waveguide is 2-4mm.
2. The gyrotron energy transmission system according to claim 1, wherein the material of the dielectric window (1) is alumina 95 porcelain, alumina 99 porcelain, beryllium oxide ceramic, single crystal material, diamond material, quartz material or boron nitride material.
3. The gyrotron energy transmission system according to claim 1, wherein the connection location of the side surface of the dielectric window (1) and the bracket tube (2) is treated by metallization.
4. The gyrotron energy transmission system according to claim 1, wherein the material of the bracket tube (2) and the water tube is kovar or stainless steel.
5. The gyrotron energy transmission system according to claim 4, wherein the outer surfaces of the bracket tube (2) and the water tube are galvanically coated with a layer of 5-25um metallic nickel.
6. The gyrotron energy transmission system according to claim 1, characterized in that the material of the water deflector (6) is kovar or stainless steel.
7. The gyrotron energy transmission system according to claim 1, wherein the outer ends of the first water pipe (3) and the second water pipe (5) are provided with quick-fit nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110602981.7A CN113345778B (en) | 2021-05-31 | 2021-05-31 | Gyrotron energy transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110602981.7A CN113345778B (en) | 2021-05-31 | 2021-05-31 | Gyrotron energy transmission system |
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| CN113345778A CN113345778A (en) | 2021-09-03 |
| CN113345778B true CN113345778B (en) | 2023-09-26 |
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| CN202110602981.7A Active CN113345778B (en) | 2021-05-31 | 2021-05-31 | Gyrotron energy transmission system |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4604551A (en) * | 1983-07-27 | 1986-08-05 | Ga Technologies Inc. | Cyclotron resonance maser system with microwave output window and coupling apparatus |
| EP0432047A1 (en) * | 1989-12-08 | 1991-06-12 | Thomson Tubes Electroniques | Wideband microwave window with miniaturized dimensions for electron tubes |
| US5266868A (en) * | 1990-11-27 | 1993-11-30 | Japan Atomic Energy Research Institute | Gyrotron including quasi-optical mode converter |
| JPH05335801A (en) * | 1991-03-05 | 1993-12-17 | Japan Atom Energy Res Inst | Microwave through-window structure |
| US5374873A (en) * | 1991-06-14 | 1994-12-20 | Kabushiki Kaisha Toshiba | Gyrotron apparatus having vibration absorbing means |
| US5548257A (en) * | 1995-09-18 | 1996-08-20 | The Regents Of The University Of California | Vacuum-barrier window for wide-bandwidth high-power microwave transmission |
| JP2001338588A (en) * | 2000-05-30 | 2001-12-07 | Japan Atom Energy Res Inst | Gyrotron and its manufacturing method |
| JP2003234074A (en) * | 2002-02-06 | 2003-08-22 | Japan Atom Energy Res Inst | Vacuum window for high-frequency and gyrotron device |
| CN101789534A (en) * | 2009-12-22 | 2010-07-28 | 安徽华东光电技术研究所 | High power box-shaped window |
| CN102243972A (en) * | 2011-06-16 | 2011-11-16 | 安徽华东光电技术研究所 | Broadband traveling wave tube energy output window and manufacturing method thereof |
| CN210668627U (en) * | 2019-11-19 | 2020-06-02 | 新奥科技发展有限公司 | Microwave transmission box type window |
| JP2020087705A (en) * | 2018-11-26 | 2020-06-04 | キヤノン電子管デバイス株式会社 | Microwave tube and manufacturing method thereof |
| CN111489946A (en) * | 2020-04-21 | 2020-08-04 | 安徽华东光电技术研究所有限公司 | Gyrotron energy coupling window |
-
2021
- 2021-05-31 CN CN202110602981.7A patent/CN113345778B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4604551A (en) * | 1983-07-27 | 1986-08-05 | Ga Technologies Inc. | Cyclotron resonance maser system with microwave output window and coupling apparatus |
| EP0432047A1 (en) * | 1989-12-08 | 1991-06-12 | Thomson Tubes Electroniques | Wideband microwave window with miniaturized dimensions for electron tubes |
| US5266868A (en) * | 1990-11-27 | 1993-11-30 | Japan Atomic Energy Research Institute | Gyrotron including quasi-optical mode converter |
| JPH05335801A (en) * | 1991-03-05 | 1993-12-17 | Japan Atom Energy Res Inst | Microwave through-window structure |
| US5374873A (en) * | 1991-06-14 | 1994-12-20 | Kabushiki Kaisha Toshiba | Gyrotron apparatus having vibration absorbing means |
| US5548257A (en) * | 1995-09-18 | 1996-08-20 | The Regents Of The University Of California | Vacuum-barrier window for wide-bandwidth high-power microwave transmission |
| JP2001338588A (en) * | 2000-05-30 | 2001-12-07 | Japan Atom Energy Res Inst | Gyrotron and its manufacturing method |
| JP2003234074A (en) * | 2002-02-06 | 2003-08-22 | Japan Atom Energy Res Inst | Vacuum window for high-frequency and gyrotron device |
| CN101789534A (en) * | 2009-12-22 | 2010-07-28 | 安徽华东光电技术研究所 | High power box-shaped window |
| CN102243972A (en) * | 2011-06-16 | 2011-11-16 | 安徽华东光电技术研究所 | Broadband traveling wave tube energy output window and manufacturing method thereof |
| JP2020087705A (en) * | 2018-11-26 | 2020-06-04 | キヤノン電子管デバイス株式会社 | Microwave tube and manufacturing method thereof |
| CN210668627U (en) * | 2019-11-19 | 2020-06-02 | 新奥科技发展有限公司 | Microwave transmission box type window |
| CN111489946A (en) * | 2020-04-21 | 2020-08-04 | 安徽华东光电技术研究所有限公司 | Gyrotron energy coupling window |
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| CN113345778A (en) | 2021-09-03 |
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