CN206061266U - A kind of automatic tuning apparatus in cyclotron resonance chamber - Google Patents
A kind of automatic tuning apparatus in cyclotron resonance chamber Download PDFInfo
- Publication number
- CN206061266U CN206061266U CN201621080492.0U CN201621080492U CN206061266U CN 206061266 U CN206061266 U CN 206061266U CN 201621080492 U CN201621080492 U CN 201621080492U CN 206061266 U CN206061266 U CN 206061266U
- Authority
- CN
- China
- Prior art keywords
- cavity
- tuning
- short plate
- interior bar
- loop short
- 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.)
- Active
Links
Landscapes
- Particle Accelerators (AREA)
Abstract
This utility model discloses a kind of automatic tuning apparatus in cyclotron resonance chamber, and the device includes holding two groups of DEE plates being oppositely arranged with end；The upper and lower both sides of every group of DEE plate are respectively perpendicular one interior bar of connection, and mobile tuning ring is equipped with each interior bar；Each tuning ring is made up of loop short plate and mobile bar, and the loop short plate is embedded in interior bar, is made electrical contact with interior bar on the inside of which, and outside is made electrical contact with resonator cavity cavity wall；Described mobile bar one end is connected on loop short plate；Feedback probe is connected on the cavity relative with the interior bar.The method is included using vector network analyzer tuning resonance frequency, measurement reflection coefficient S11The corresponding Frequency point f of minima1, and mobile tuning ring, work as f1=f0When, reach resonant frequency point requirement.This utility model realizes the purpose of automatic tuning cavity body frequency, is moved up and down by automatically controlling tuning ring, changes the length of accelerator cavity, makes resonator cavity work at fixed resonant frequency, it is to avoid because of the damage that off resonance is caused.
Description
Technical field
This utility model belongs to cyclotron technical field, is related to a kind of automatic tuning dress in cyclotron resonance chamber
Put.
Background technology
Cyclotron widely applies to biological effects of heavy ions, heavy-ion cancer therapy, material science and space flight device
The research fields such as single particle effect, especially huge contribution is made in the field such as radiopharmaceutical pharmacy, oncotherapy again.Build
Possess the medical cyclotron of independent intellectual property right, and it is imperative to make which smoothly put into operation.Hefei ion medical center
Carried out the research of the associated biomolecule medical science such as proton therapeutic, and substantial amounts of investigation and examination have been done to developing superconducting cyclotron
Test work.
Important component part of the radio frequency system as cyclotron, plays important work during particle accelerates
With the system mainly includes high-power radiofrequency source resonant cavity, and the design of resonator cavity is the design of cyclotron radio frequency system
Key component.Its natural mode shape is not only had influence on and is matched with the whole machine of high frequency transmitter, also determines accelerating field
Change frequency, it is necessary to it is synchronous with the speed of ion.
And in the middle of actual motion, cavity loss heating causes physical deformation to cause the change of the resonant frequency of resonator cavity,
Although water-cooled is carried out to which in order to prevent cavity thermal deformation, cooling water is followed and badly can cause cavity mechanical shock, adds other
The cavity mechanical shock that various equipment cause, these factors can all cause cavity off resonance.Slight off resonance can cause high frequency voltage
The drift with high-frequency signal phase place is reduced, the ion beam current of accelerator is caused damage, off resonance is crossed conference and causes high frequency transmitter
With the mismatch between high frequency cavity, make high frequency reflection power excessive, high frequency power cannot all be transferred to resonator cavity, and to which
His weak link reflects, and causes high frequency power source self-oscillation, causes the damage of high frequency power source, or cause high frequency when serious
Disruptive discharge inside feeder line, or even burn part high-frequency feed line.Therefore frequency tuning must be carried out to cavity, makes the mistake of cavity
It is humorous to be maintained in the minimum zone of permission.
Utility model content
The purpose of this utility model is the automatic tuning apparatus and method for providing a kind of cyclotron resonance chamber, is used for
Automatically tuned resonating cavity frequency, makes frequency cavity be operated in resonant condition；In the case where accelerator structure is compact, tuner does not have
There is occupancy exceptional space, but be embedded in interior bar using annular slidable short board, moved by driving mobile bar to control tuning ring
The tuning for moving to realize resonator cavity frequency.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of automatic tuning apparatus in cyclotron resonance chamber, the tuner include holding two groups be oppositely arranged with end
DEE plates；The upper and lower both sides of every group of DEE plate are respectively perpendicular one interior bar of connection, are equipped with mobile tuning ring in each described interior bar；
Each described tuning ring is made up of loop short plate and mobile bar, and the loop short plate is embedded in interior bar, in which
Side is made electrical contact with interior bar, and outside is made electrical contact with resonator cavity cavity wall；Described mobile bar one end is connected on loop short plate；With it is described
Feedback probe is connected on the relative cavity of interior bar.
The arranged on left and right sides of the automatic tuning apparatus adopts symmetrical structure, the interior bar, loop short plate, mobile bar position
In one single-chamber body of resonator cavity.
The mobile bar other end is connected with motor, and the feedback probe is connected with cavity, radio frequency in test chamber
Signal, controls motor tuning mobile bar and moves up and down for feeding back to control system.
The feedback probe is distributed in upper and lower four positions of left and right single-chamber body, is tuned by feedback signal left and right
The position of cavity tuning ring reaches full symmetric.
The tuning ring is connected with loop short plate by the uniform mobile bar of the six roots of sensation and is constituted, and mobile bar one end is Motor drive
Port, drives tuning according to position signalling and control signal.
Loop short plate in the single-chamber body adopts upper and lower symmetrical structure, loop short plate to pass through the upper and lower shifting of mobile bar
It is dynamic, by changing the length of cavity come tuning cavity body frequency.
A kind of automated tuning method in cyclotron resonance chamber, the tuning methods comprise the steps：
1) analyzed according to resonator cavity physical Design, calculate installation site, inside/outside diameter size and the movement of loop short plate
Bar size；
2) will be embedded in interior bar on the inside of loop short plate, outside and cavity wall make electrical contact with, the bottom of mobile bar and loop short
Plate connects, and top is connected with motor；
3) using vector network analyzer tuning resonance frequency, one end of vector network analyzer is connected on feeder line input, surveys
Amount reflection coefficient S11, observe S11The corresponding Frequency point f of minima1, by f1With resonant frequency f0Contrast, if f1>f0, slowly upwards
Mobile annular short board, conversely, loop short plate is then moved down, while observing S11The change of minima respective frequencies point；When
f1=f0When, stop mobile annular short board, reach the Frequency point of resonator cavity work.
The beneficial effects of the utility model：
1) this utility model is by automatically controlling the moving up and down come tuned frequency of tuning ring, it is to avoid accelerator cavity loses
It is humorous, and experience adjustments of the manual tuning by operator are solved, the longer shortcoming of tuning period realizes the work(of automatic tuning
Energy；
2) this utility model does not take horizontal space using structure is moved up and down come tuned frequency, and compact conformation is realized
The excellent electric contact of tuning ring and cavity, the smooth excessiveness of impedance.
Description of the drawings
For the ease of it will be appreciated by those skilled in the art that being further described to this utility model below in conjunction with the accompanying drawings.
Fig. 1 is a kind of automatic tuning apparatus structural representation in cyclotron resonance chamber of this utility model；
In figure：1- mobile bars；2- tops loop short plate；3-DEE plates；4- top probes；5- bottoms probe；6- is moved
Bar；7- bottoms probe；8- top probes；9- bottoms loop short plate；10- is electrically connected；11- interior bars.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with embodiment, it is clear that described
Embodiment be only a part of embodiment of this utility model, rather than the embodiment of whole.Based on the reality in this utility model
Example is applied, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made all belongs to
In the scope of this utility model protection.
A kind of automatic tuning apparatus in cyclotron resonance chamber, the left and right both sides of the automatic tuning apparatus are using complete
Symmetrical structure, referring to Fig. 1, including two groups of DEE plates 3 that end is oppositely arranged with end, set for electrical connection 10 between two groups of DEE plates 3
Put；Every group of 3 upper and lower both sides of DEE plates are respectively perpendicular one interior bar 11 of connection, are equipped with mobile tuning ring in each interior bar 11；
Wherein, DEE plates 3, interior bar 11 are may be contained within one single-chamber body of resonator cavity with tuning ring, and the section of the resonator cavity is in
Left and right two symmetrical cross-type shapes；
The tuning ring is made up of loop short plate and mobile bar, specifically includes top loop short plate 2, bottom loop short
Plate 9 and top mobile bar 1, low side mobile bar 6；Wherein, mobile bar one end is connected on loop short plate, in loop short plate
Portion is embedded in interior bar 11, good with interior bar electrical contact on the inside of which, outside and the good electrical contact of single-chamber body lumen wall, and each annular is short
Six roots of sensation mobile bar is evenly equipped with the plate of road；
The other end of above-mentioned mobile bar is connected with drive mechanism, and the drive mechanism is motor；The relative chamber in 11 end of interior bar
Feedback probe 4,5,7,8, radiofrequency signal in feedback probe test chamber, for feeding back to control system are connected on body
Motor tunes automatically mobile bar and moves up and down, and for tuning the effective length of cavity, changes frequency so that accelerating cavity reaches
Resonant condition；
In single-chamber body, interior bar 11, loop short plate 2,9, feedback probe 4,5,7,8, mobile bar 1,6, using upper and lower
Symmetrical structure is arranged, and loop short plate is moved in interior bar 11, while guarantee that tuning ring keeps excellent electric contact with cavity wall, with this
To tune the length of cavity, the purpose of tuning is reached；
Referring to Fig. 1, a kind of automated tuning method in cyclotron resonance chamber, the method include：By 2 He of loop short plate
9 inner side is combined with the interior bar 11 of accelerator cavity, and the outside of loop short plate 2 and 9 is connected with cavity wall；One end and annular
The other end of the mobile bar 1 and 6 that short board is connected is connected with drive mechanism；Tuner is adopted and moves up and down structure, for adjusting
The effective length of humorous cavity, changes frequency so that accelerating cavity reaches resonant condition；Feedback probe 4,5,7,8 is connected with cavity, inspection
Radiofrequency signal in cavity is surveyed, carrys out motor and tune automatically mobile bar to move up and down for feeding back to control system.
When cavity because when heat effect produces deformation, being analyzed with Cavity perturbation.Lower relation can be able to by Theory of Electromagnetic Field：
In above formula, ω is the resonant frequency after perturbation, ω0For the resonant frequency before perturbation,It is average electric field energy
Metric density and average magnetic energy density；Δ ν is change in volume,For the average electromagnetic energy of resonance cavity total after perturbation.
Loop short plate can change the Distribution of Magnetic Field of cavity while moving up and down in interior bar, so as to change the frequency of cavity
Rate./ 2nd wavelength coaxial resonator cavitys are made up of the coaxial line of two terminal shortcircuits, and resonant frequency is determined by the length of resonator cavity,
The relation of resonant frequency f resonant cavity length L is as follows：
In formula, p represents mode of resonance, and c is the light velocity.
The frequency shift (FS) caused due to heat effect is compensated by changing cavity length, makes accelerating cavity be constantly in resonance
State.
Implement methodology of the present utility model is mainly as follows：
1) analyzed according to resonator cavity physical Design, calculate installation site, inside/outside diameter size and the movement of slip short board
Bar size；
2) will be embedded in interior bar on the inside of annular slidable short board, outside is contacted with cavity wall, it is ensured that good electrical contact, adjust
The top of humorous ring mobile bar is connected with motor；
3) using vector network analyzer tuning resonance frequency, one end of vector network analyzer is connected on feeder line input, surveys
Amount reflection coefficient S11, observe S11The corresponding Frequency point f of minima1, by f1With resonant frequency f0Contrast, if f1>f0, slowly upwards
Mobile tuning ring, conversely, tuning ring is then moved down, while observing S11The change of minima respective frequencies point；Work as f1=f0When,
Stop mobile tuning ring, at this moment reach resonant frequency point requirement.
4) tuning ring is tuned automatically by feedback control, it is to avoid as the intra-cavity frequency change that heat effect causes causes cavity
The phenomenon of off resonance.
This utility model preferred embodiment disclosed above is only intended to help and illustrates this utility model.Preferred embodiment is simultaneously
Without all of details of detailed descriptionthe, it is only described specific embodiment also not limit the utility model.Obviously, according to this theory
The content of bright book, can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
Principle of the present utility model and practical application are explained, so that skilled artisan can be best understood by and utilize this
Utility model.This utility model is only limited by claims and its four corner and equivalent.
Claims (6)
1. a kind of automatic tuning apparatus in cyclotron resonance chamber, it is characterised in that the tuner includes that end is relative with end
The two groups of DEE plates for arranging；The upper and lower both sides of every group of DEE plate are respectively perpendicular one interior bar of connection, are equipped with shifting in each described interior bar
Dynamic tuning ring；
Each described tuning ring is made up of loop short plate and mobile bar, and the loop short plate is embedded in interior bar, on the inside of which with
Interior bar makes electrical contact with, and outside is made electrical contact with resonator cavity cavity wall；Described mobile bar one end is connected on loop short plate；With the interior bar
Feedback probe is connected on relative cavity.
2. the automatic tuning apparatus in a kind of cyclotron resonance chamber according to claim 1, it is characterised in that this is automatic
The arranged on left and right sides of tuner adopts symmetrical structure, the interior bar, loop short plate, mobile bar to be located at one single-chamber of resonator cavity
In vivo.
3. a kind of automatic tuning apparatus in cyclotron resonance chamber according to claim 1, it is characterised in that the shifting
The lever other end is connected with motor, and the feedback probe is connected with cavity, radiofrequency signal in test chamber, for feeding back to
Control system come control motor tuning mobile bar move up and down.
4. the automatic tuning apparatus in a kind of cyclotron resonance chamber according to claim 1, it is characterised in that described anti-
Feedback probe is distributed in upper and lower four positions of left and right single-chamber body, and the position of left and right cavity tuning ring is tuned by feedback signal
Put reach it is full symmetric.
5. a kind of automatic tuning apparatus in cyclotron resonance chamber according to claim 1, it is characterised in that the tune
Humorous ring is connected with loop short plate by the uniform mobile bar of the six roots of sensation and is constituted, and mobile bar one end is Motor drive port, according to position
Signal and control signal drive tuning.
6. a kind of automatic tuning apparatus in cyclotron resonance chamber according to claim 2, it is characterised in that the list
Loop short plate in cavity adopts upper and lower symmetrical structure, loop short plate to move up and down by mobile bar, by changing chamber
The length of body carrys out tuning cavity body frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621080492.0U CN206061266U (en) | 2016-09-26 | 2016-09-26 | A kind of automatic tuning apparatus in cyclotron resonance chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621080492.0U CN206061266U (en) | 2016-09-26 | 2016-09-26 | A kind of automatic tuning apparatus in cyclotron resonance chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206061266U true CN206061266U (en) | 2017-03-29 |
Family
ID=58367442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621080492.0U Active CN206061266U (en) | 2016-09-26 | 2016-09-26 | A kind of automatic tuning apparatus in cyclotron resonance chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206061266U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211538A (en) * | 2016-09-26 | 2016-12-07 | 合肥中科离子医学技术装备有限公司 | The automatic tuning apparatus in a kind of cyclotron resonance chamber and method |
| CN106851959A (en) * | 2017-04-13 | 2017-06-13 | 中国原子能科学研究院 | The tuning methods of non-homogeneous disk-loaded waveguide accelerating structure |
| CN107271812A (en) * | 2017-05-26 | 2017-10-20 | 中国科学院近代物理研究所 | A kind of four aerofoil profile rfq accelerator cavity cold model measurement devices |
| CN107889337A (en) * | 2017-12-13 | 2018-04-06 | 合肥中科离子医学技术装备有限公司 | A kind of superconducting cyclotron T-shaped inner wire spiral shape resonator |
| CN108124373A (en) * | 2017-12-18 | 2018-06-05 | 合肥中科离子医学技术装备有限公司 | A kind of devices and methods therefor for being used to control superconducting cyclotron accelerating potential |
| CN110213878A (en) * | 2019-05-29 | 2019-09-06 | 中国科学院近代物理研究所 | A kind of high-frequency resonant cavity |
-
2016
- 2016-09-26 CN CN201621080492.0U patent/CN206061266U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211538A (en) * | 2016-09-26 | 2016-12-07 | 合肥中科离子医学技术装备有限公司 | The automatic tuning apparatus in a kind of cyclotron resonance chamber and method |
| CN106211538B (en) * | 2016-09-26 | 2018-02-09 | 合肥中科离子医学技术装备有限公司 | A kind of automatic tuning apparatus and method of cyclotron resonance chamber |
| CN106851959A (en) * | 2017-04-13 | 2017-06-13 | 中国原子能科学研究院 | The tuning methods of non-homogeneous disk-loaded waveguide accelerating structure |
| CN106851959B (en) * | 2017-04-13 | 2018-11-30 | 中国原子能科学研究院 | The tuning methods of non-homogeneous disk-loaded waveguide accelerating structure |
| CN107271812A (en) * | 2017-05-26 | 2017-10-20 | 中国科学院近代物理研究所 | A kind of four aerofoil profile rfq accelerator cavity cold model measurement devices |
| CN107271812B (en) * | 2017-05-26 | 2019-05-28 | 中国科学院近代物理研究所 | A kind of four aerofoil profile rfq accelerator cavity cold model measurement devices |
| CN107889337A (en) * | 2017-12-13 | 2018-04-06 | 合肥中科离子医学技术装备有限公司 | A kind of superconducting cyclotron T-shaped inner wire spiral shape resonator |
| CN108124373A (en) * | 2017-12-18 | 2018-06-05 | 合肥中科离子医学技术装备有限公司 | A kind of devices and methods therefor for being used to control superconducting cyclotron accelerating potential |
| CN110213878A (en) * | 2019-05-29 | 2019-09-06 | 中国科学院近代物理研究所 | A kind of high-frequency resonant cavity |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206061266U (en) | A kind of automatic tuning apparatus in cyclotron resonance chamber | |
| CN106211538B (en) | A kind of automatic tuning apparatus and method of cyclotron resonance chamber | |
| CN106535461B (en) | Medical superconducting cyclotron resonator capacitance tuning device and method | |
| CN108668398B (en) | Microwave heating device adopting phase scanning | |
| CN202797210U (en) | Cavity filter and radio frequency communication equipment | |
| CN106385758B (en) | Superconducting cyclotron resonator capacitive coupling matching process | |
| US9786464B2 (en) | Superconducting multi-cell trapped mode deflecting cavity | |
| CN110493909A (en) | Distributed radio frequency or microwave thawing equipment | |
| CN108173354B (en) | Wireless power transmission system and transmission method thereof | |
| CN103983861A (en) | Microwave and plasma interaction device | |
| CN109951913A (en) | Laterally uniform microwave oven | |
| CN110213878B (en) | High-frequency resonant cavity | |
| Xiong et al. | The radio-frequency design of an iris-type coupler for the CPHS radio-frequency quadrupole | |
| CN105206899A (en) | X-band TM01-TE11 mode converter | |
| CN205335401U (en) | Bimodulus dielectric filter based on metal paster controlled frequency and coupling | |
| Belomestnykh | Overview of input power coupler developments, pulsed and CW | |
| US20210249914A1 (en) | Wireless Power Transfer Method and System Using the Same | |
| Sobenin et al. | Stabilization of the polarization plane in travelling wave deflectors | |
| Ferrand et al. | Final design of the fully equipped HWR cavities for SARAF | |
| CN105514541B (en) | Ferrite-type phase shifter and accelerator | |
| WO2020055703A1 (en) | Radiofrequency power combiner or divider having a transmission line resonator | |
| Vollinger et al. | Ferrite-tuner Development for 80 MHz Single-Cell RF-Cavity Using Orthogonally Biased Garnets | |
| Ego | RF input coupler with a coupling tuner for an RF acceleration cavity | |
| Smith et al. | ESS high beta cavity test preparations at Daresbury Laboratory | |
| Watanabe et al. | New HOM coupler design for ERL injector at KEK |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |