CN204887666U - Microwave transmission device and medical electron accelerator - Google Patents
Microwave transmission device and medical electron accelerator Download PDFInfo
- Publication number
- CN204887666U CN204887666U CN201520613825.0U CN201520613825U CN204887666U CN 204887666 U CN204887666 U CN 204887666U CN 201520613825 U CN201520613825 U CN 201520613825U CN 204887666 U CN204887666 U CN 204887666U
- Authority
- CN
- China
- Prior art keywords
- waveguide
- bend
- waveguide bend
- microwave
- microwave transmission
- 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.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 46
- 238000009201 electron therapy Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Particle Accelerators (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The utility model provides a microwave transmission device and medical electron accelerator relates to the microwave technology field. Design in order to solve the problem that microwave transmission device is bulky, power consumption is big among the prior art. This microwave transmission device include: first straight waveguide, 4 port circulator, flexible waveguide and the feed -in of waveguide microwave connect, are provided with first waveguide bend between first straight waveguide and the 4 port circulator, the straight waveguide of second, second waveguide bend, the straight waveguide of third, third waveguide bend, waveguide rotary joint, fourth waveguide bend, the 5th waveguide bend and the 6th waveguide bend connect gradually between 4 port circulator and the flexible waveguide, the flexible waveguide connects gradually directional coupler, the straight waveguide of fourth, the 7th waveguide bend, waveguide window and the 8th waveguide bend with waveguide microwave feed -in joint, wherein, waveguide rotary joint's the rotatory end rotation of putting up at random and rotatory. The utility model discloses a waveguide rotary joint for waveguide transmission element can be according to the compact structure in the frame, the continuity and the stability of microwave transmission when guaranteeing the frame rotation.
Description
Technical field
The utility model is involved in microwave technical field, particularly relates to a kind of microwave transmission unit and accelerator for electron therapy.
Background technology
Microwave transmission unit is the important component part of accelerator for electron therapy, and the microwave component different by several functions combines, and stable for microwave is transferred to accelerating tube, makes electronics obtain the energy of microwave and accelerate.Typical accelerator microwave system is made up of microwave source (magnetron or klystron), transmission waveguide, sampling waveguide, three ends or four port circulator, directional coupler, waveguide window, terminator and automatic frequency control system etc.
The microwave transmission unit volume of conventional medical accelerator for electron therapy is large, power loss large, occurs the high power breakdown problem of microwave component sometimes, and microwave system unstable properties can cause maintenance cost and time cost to increase, and affects the normal operation of accelerator.
Utility model content
The purpose of this utility model is to provide a kind of microwave transmission unit, thus the microwave transmission unit volume that can solve conventional medical accelerator for electron therapy in prior art is large, power loss large, occurs the high power breakdown problem of microwave component sometimes.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of microwave transmission unit, comprises the first straight wave guide, four port circulator, flexible waveguide and waveguide microwave feed-in joint,
Wherein, the first waveguide bend is provided with between one end of the first straight wave guide and the first end of four port circulator;
The second straight wave guide, the second waveguide bend, the 3rd straight wave guide, the 3rd waveguide bend, waveguide junction, the 4th waveguide bend, the 5th waveguide bend and the 6th waveguide bend is connected successively between second end of four port circulator and one end of flexible waveguide;
Directional coupler, the 4th straight wave guide, the 7th waveguide bend, waveguide window and the 8th waveguide bend is connected successively between the other end of flexible waveguide and one end of waveguide microwave feed-in joint;
Wherein, the 4th end of four port circulator is connected with load; Described 4th waveguide bend is arranged at machine frame inside to 10 Connection Elements of described waveguide microwave feed-in joint; Waveguide junction is provided with a stiff end and a round end, and described stiff end is connected with described 3rd waveguide bend, and described round end is connected with described 4th waveguide bend, and described round end rotates with the rotation of described frame.
Wherein, described first waveguide bend, the second waveguide bend, the 3rd waveguide bend, the 4th waveguide bend, the 6th waveguide bend and the 7th waveguide bend are 90 °, H face waveguide bend.
Wherein, described 5th waveguide bend and the 8th waveguide bend are 90 °, E face waveguide bend.
Wherein, the other end of described first straight wave guide is connected with klystron.
Wherein, the other end of described waveguide microwave feed-in joint is connected with accelerating tube.
Wherein, described waveguide junction is also provided with mounting flange, and described mounting flange connects described round end and stiff end.
Wherein, described microwave transmission unit, also comprises:
Supporting bracket, one end of described supporting bracket is connected with described mounting flange, and the other end is fixed on ground.
The utility model also provides a kind of accelerator for electron therapy, comprising: the microwave transmission unit as described in above-described embodiment.
The beneficial effect of technique scheme of the present utility model is as follows:
In technique scheme of the present utility model, described microwave transmission unit is mainly used in high energy acclerator microwave transmission, rotated with the rotation of frame by the round end of waveguide junction, make waveguide element can according to the space optimization layout in frame, make its compact conformation, the stability of microwave transmission when ensureing that frame rotates.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model microwave transmission unit;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the perspective view of Fig. 1;
Fig. 4 is the schematic diagram that the utility model microwave transmission unit is installed in electron accelerator frame;
Fig. 5 is the front view of waveguide junction in the utility model microwave transmission unit;
Fig. 6 is the perspective view of Fig. 5.
Description of reference numerals:
1-klystron; 2-first straight wave guide; 3-first waveguide bend; 4-load; 5-four port circulator; 51-first end; 52-second end; 53-the 3rd end; 54-the 4th end; 6-second straight wave guide; 7-second waveguide bend; 8-the 3rd straight wave guide; 9-the 3rd waveguide bend; 10-waveguide junction; 11-the 4th waveguide bend; 12-the 5th waveguide bend; 13-the 6th waveguide bend; 14-flexible waveguide; 15-directional coupler; 16-the 4th straight wave guide; 17-the 7th waveguide bend; 18-waveguide window; 19-the 8th waveguide bend; 20-waveguide microwave feed-in joint; 21-transmits microwave; 22-supporting bracket; 101-stiff end; 102-round end; 103-mounting flange; A-frame.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model discloses a kind of microwave transmission unit, as shown in figures 1 to 6, this microwave transmission unit comprises: the first straight wave guide 2, four port circulator 5, flexible waveguide 14 and waveguide microwave feed-in joint 20, wherein,
The first waveguide bend 3 is provided with between one end of first straight wave guide 2 and the first end 51 of four port circulator 5;
The second straight wave guide 6, second waveguide bend 7, the 3rd straight wave guide 8, the 3rd waveguide bend 9, waveguide junction 10, the 4th waveguide bend 11, the 5th waveguide bend 12 and the 6th waveguide bend 13 is connected successively between second end 52 of four port circulator 5 and one end of flexible waveguide 14;
Directional coupler 15, the 4th straight wave guide 16, the 7th waveguide bend 17, waveguide window 18 and the 8th waveguide bend 19 is connected successively between the other end of flexible waveguide 14 and one end of waveguide microwave feed-in joint 20;
Wherein, the 4th end 54 of four port circulator 5 is connected with load 4; 4th waveguide bend 11 to waveguide microwave feed-in joint 20, these 10 Connection Elements are arranged at machine frame inside, as shown in Figure 4;
Waveguide junction 10 is provided with stiff end 101 and a round end 102, and this stiff end 101 is connected with the 3rd waveguide bend 9, and this round end 102 is connected with the 4th waveguide bend 11, and this round end 102 rotates with the rotation of described frame A; Waveguide junction 10 is also provided with mounting flange 103, and this mounting flange 103 connects this round end 102 and stiff end 101, and microwave is finally transferred to accelerating tube by waveguide junction by transmission microwave 21.The setting of this waveguide junction 10 except can bear high-power except, because the round end 102 of waveguide junction 10 can rotate with the rotation of frame A, thus the stability of microwave transmission when ensure that frame A rotates.
First waveguide bend 3, second waveguide bend 7, the 3rd waveguide bend 9, the 4th waveguide bend 11, the 6th waveguide bend 13 and the 7th waveguide bend 17 are 90 °, H face waveguide bend, here it should be noted that, the long edge of rectangular waveguide is parallel to that the direction of broadside is bending is called H face waveguide bend.
5th waveguide bend 12 and the 8th waveguide bend 19 are 90 °, E face waveguide bend, it should be noted that the broadside of rectangular waveguide bends along the direction perpendicular to long limit here and are called E face waveguide bend.
The other end of the first straight wave guide 2 is connected with klystron 1; The other end of waveguide microwave feed-in joint 20 is connected with accelerating tube.
As shown in Figure 4, this microwave transmission unit, also comprises: supporting bracket 22, and one end of this supporting bracket 22 is connected with mounting flange 103, and the other end is fixed on ground.This supporting bracket 22 supports and fixes waveguide junction 10, and what whole microwave transmission unit was fixed is more firm.
Microwave transmission unit in use, klystron 1 produces microwave power, microwave power passes to four port circulator 5 through the first straight wave guide 2 and the first waveguide bend 3 from first end 51, the microwave power entering four port circulator 5 will by the second straight wave guide 6, second waveguide bend 7, 3rd straight wave guide 8 and the 3rd waveguide bend 9 are transferred to waveguide junction 10, waveguide junction can bear the average power of klystron 1 10kW when Operation at full power, and the continuity of microwave transmission can be kept when frame A rotates, microwave power continues through the 4th waveguide bend 11, 5th waveguide bend 12, 6th waveguide bend 13 and flexible waveguide 14 enter directional coupler 15, eventually pass the 4th straight wave guide 16, 7th waveguide bend 17, waveguide window 18, 8th waveguide bend 19 and waveguide microwave feed-in joint 20 enter accelerating tube.
Here it should be noted that, klystron 1 is the microwave power amplifier tube that the speed by periodically modulating electron beam realizes amplification or oscillation functions, and electron beam DC energy is converted to microwave energy by it;
Four port circulator 5, be a kind of incident wave to transmission and reflected wave be the element of directivity, prevent microwave reflection power from entering radio frequency RF power source, the microwave power that can will speed up pipe reflection guides to load 4 and gives attenuation by absorption, thus ensures that the microwave source in accelerator for electron therapy normally works;
First waveguide bend 3, second waveguide bend 7, the 3rd waveguide bend 9, the 4th waveguide bend 11, the 6th waveguide bend 13, the 7th waveguide bend 17 waveguide bend, the 5th waveguide bend 12 and the 8th waveguide bend 19, change microwave transmission circuit, to meet the requirement of mechanical structure master-plan;
Flexible waveguide 14, can provide very little camber and curvature, for the little deviation between compensate rigid microwave component;
Waveguide junction 10, can bear the average power of klystron 10kW when Operation at full power, keeps the continuity of microwave when frame rotates;
Directional coupler 15 is the directive power-splitting device of a kind of tool;
Waveguide window 18, for the RF waveguides sections and accelerating tube vacuum system that are full of insulating gas being kept apart, and allows microwave pass through smoothly.
In microwave transmission process, only have the microwave power be consistent with accelerating tube resonance frequency to be absorbed, between each pulse rising and decrement phase, also have part microwave power to be accelerated pipe simultaneously and reflect.The power of these reflections returns the second end 52 entering into four port circulator 5, pass to load 4, absorbed by load 4, thus microwave power is unlikely to be reflected back in klystron 1, avoids the impact on klystron 1 by the 4th end 54.Here it should be noted that, the 3rd end 53 of this four port circulator 5 is arranged at adjacent second end 52 in a side of this four port circulator.3rd end 53 can connect the second load, coordinate with load 4 power absorbing and reflect; Also the port sealing of the 3rd end 53 can be lived.Microwave transmission unit regulates by the 4th waveguide bend 11, the 5th waveguide bend 12, the 6th waveguide bend 13 and flexible waveguide 14, the 4th straight wave guide 16, the 7th waveguide bend 17, the 8th waveguide bend 19 and is arranged on position in frame A and structure, make the element present position compact conformation in frame A, can implementation space layout optimization, be convenient to install according to the space of accelerator for electron therapy frame A simultaneously; In microwave transmission process, due to the needs that frame rotates, the round end 102 by rotating waveguide junction 10 ensures the stability of microwave transmission.
The utility model also provides a kind of accelerator for electron therapy, comprising: the microwave transmission unit as described in above-described embodiment.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (8)
1. a microwave transmission unit, comprises the first straight wave guide (2), four port circulator (5), flexible waveguide (14) and waveguide microwave feed-in joint (20), it is characterized in that,
The first waveguide bend (3) is provided with between one end of first straight wave guide (2) and the first end (51) of four port circulator (5);
The second straight wave guide (6), the second waveguide bend (7), the 3rd straight wave guide (8), the 3rd waveguide bend (9), waveguide junction (10), the 4th waveguide bend (11), the 5th waveguide bend (12) and the 6th waveguide bend (13) is connected successively between second end (52) of four port circulator (5) and one end of flexible waveguide (14);
Directional coupler (15), the 4th straight wave guide (16), the 7th waveguide bend (17), waveguide window (18) and the 8th waveguide bend (19) is connected successively between the other end of flexible waveguide (14) and one end of waveguide microwave feed-in joint (20);
Wherein, the 4th end (54) of four port circulator is connected with load (4); Described 4th waveguide bend (11) is arranged at machine frame inside to 10 Connection Elements of described waveguide microwave feed-in joint (20); Waveguide junction (10) is provided with a stiff end (101) and a round end (102), described stiff end (101) is connected with described 3rd waveguide bend (9), described round end (102) is connected with described 4th waveguide bend (11), and described round end (102) rotates with the rotation of described frame (A).
2. microwave transmission unit according to claim 1, it is characterized in that, described first waveguide bend (3), the second waveguide bend (7), the 3rd waveguide bend (9), the 4th waveguide bend (11), the 6th waveguide bend (13) and the 7th waveguide bend (17) are 90 °, H face waveguide bend.
3. microwave transmission unit according to claim 1, is characterized in that, described 5th waveguide bend (12) and the 8th waveguide bend (19) are 90 °, E face waveguide bend.
4. microwave transmission unit according to claim 1, is characterized in that, the other end of described first straight wave guide (2) is connected with klystron (1).
5. microwave transmission unit according to claim 1, is characterized in that, the other end of described waveguide microwave feed-in joint (20) is connected with accelerating tube.
6. microwave transmission unit according to claim 1, it is characterized in that, described waveguide junction (10) is also provided with mounting flange (103), and described mounting flange (103) connects described round end (102) and stiff end (101).
7. microwave transmission unit according to claim 6, is characterized in that, described microwave transmission unit, also comprises:
Supporting bracket (22), one end of described supporting bracket (22) is connected with described mounting flange (103), and the other end is fixed on ground.
8. an accelerator for electron therapy, is characterized in that, comprising: the microwave transmission unit as described in any one of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613825.0U CN204887666U (en) | 2015-08-14 | 2015-08-14 | Microwave transmission device and medical electron accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613825.0U CN204887666U (en) | 2015-08-14 | 2015-08-14 | Microwave transmission device and medical electron accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204887666U true CN204887666U (en) | 2015-12-16 |
Family
ID=54831983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520613825.0U Expired - Fee Related CN204887666U (en) | 2015-08-14 | 2015-08-14 | Microwave transmission device and medical electron accelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204887666U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898975A (en) * | 2016-06-12 | 2016-08-24 | 浙江大学 | High-power microwave plasma resonant cavity |
| CN106231773A (en) * | 2016-07-27 | 2016-12-14 | 广州华大生物科技有限公司 | Twin-guide system and relevant apparatus for irradiation processing |
| CN107306474A (en) * | 2016-04-18 | 2017-10-31 | 清华大学 | A kind of medical computerized linear accelerator |
| CN110278652A (en) * | 2019-02-01 | 2019-09-24 | 深圳铭杰医疗科技有限公司 | Accelerator for electron therapy and treating equipment for medical purpose |
-
2015
- 2015-08-14 CN CN201520613825.0U patent/CN204887666U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107306474A (en) * | 2016-04-18 | 2017-10-31 | 清华大学 | A kind of medical computerized linear accelerator |
| CN107306474B (en) * | 2016-04-18 | 2023-10-13 | 清华大学 | Medical electron linear accelerator |
| CN105898975A (en) * | 2016-06-12 | 2016-08-24 | 浙江大学 | High-power microwave plasma resonant cavity |
| CN105898975B (en) * | 2016-06-12 | 2018-07-17 | 浙江大学 | A kind of HIGH-POWERED MICROWAVES plasma resonant |
| CN106231773A (en) * | 2016-07-27 | 2016-12-14 | 广州华大生物科技有限公司 | Twin-guide system and relevant apparatus for irradiation processing |
| CN106231773B (en) * | 2016-07-27 | 2018-05-11 | 广州华大生物科技有限公司 | Double wave guiding systems and relevant apparatus for irradiation processing |
| CN110278652A (en) * | 2019-02-01 | 2019-09-24 | 深圳铭杰医疗科技有限公司 | Accelerator for electron therapy and treating equipment for medical purpose |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204887666U (en) | Microwave transmission device and medical electron accelerator | |
| CN103474733B (en) | Microstrip waveguide double-probe transition structure | |
| CN103956568B (en) | A kind of box shape fan-shaped beam antenna | |
| CN105277816A (en) | High-power microwave coupling measuring apparatus | |
| CN105552506A (en) | Hole-coupling directional coupler for millimeter-wave-band megawatt microwave parameter measurement | |
| US11349184B2 (en) | Phase shifter including first and second boards having rails thereon and configured to be rotatable with respect to each other and an antenna formed therefrom | |
| US20180192307A1 (en) | Phase shifter, antenna, and base station | |
| US9136607B2 (en) | Antenna beam steering through waveguide mode mixing | |
| CN104112895A (en) | Microwave-frequency-band adjustable microstrip directional coupler | |
| CN204391227U (en) | A kind of K-band rectangle TE10-circular waveguide TE01 mode transition structure of practicality | |
| CN110581364A (en) | Simple polarization tracker for mobile communication | |
| CN202095170U (en) | Microwave transmission device | |
| CN203660060U (en) | High-power grating polarizer | |
| CN202678273U (en) | Millimeter waveband traveling wave tube coaxial output window structure | |
| CN109994350B (en) | Energy coupling device from H-surface insertion type rectangular waveguide to staggered double gates | |
| CN204313328U (en) | Micro-wave oven and the driver for micro-wave oven | |
| CN109473772B (en) | Dual polarized ultra wideband antenna | |
| CN101807932A (en) | Three-terminal modulator for low-frequency modulation type radiometer receiver | |
| CN201153098Y (en) | Output coupling device construction for travelling-wave tube | |
| CN113161216B (en) | Compact double-confocal waveguide cyclotron traveling wave tube input coupler | |
| CN107196022B (en) | Edge hole disc-loaded waveguide multi-frequency controllable mode converter | |
| CN106128914B (en) | A kind of novel gyrotron traveling wave tube input coupler | |
| CN209401826U (en) | Novel Bipolar antenna | |
| CN215578988U (en) | Coaxial mode converter | |
| CN113410646A (en) | Leakage cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20160831 Granted publication date: 20151216 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20170228 Granted publication date: 20151216 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170228 Granted publication date: 20151216 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20190828 Granted publication date: 20151216 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190828 Granted publication date: 20151216 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220828 Granted publication date: 20151216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 |