CN106231777B - A kind of signal source of high stability of superconducting cyclotron - Google Patents
A kind of signal source of high stability of superconducting cyclotron Download PDFInfo
- Publication number
- CN106231777B CN106231777B CN201610616930.9A CN201610616930A CN106231777B CN 106231777 B CN106231777 B CN 106231777B CN 201610616930 A CN201610616930 A CN 201610616930A CN 106231777 B CN106231777 B CN 106231777B
- Authority
- CN
- China
- Prior art keywords
- frequency
- 80mhz
- 400mhz
- signal source
- module
- 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
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
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
- H05H13/005—Cyclotrons
-
- 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
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/02—Circuits or systems for supplying or feeding radio-frequency energy
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
The present invention relates to a kind of signal source of high stability of superconducting cyclotron, the signal source includes sequentially connected 80MHz times of frequency module, 80MHz frequency stabilization loop module, 400MHz times of frequency module, 400MHz frequency stabilization loop.The cost of the signal source is low, noise is small, and frequency stability is high, reduces the sliding phase problem due to caused by frequency stability in superconducting cyclotron.The frequency-doubling method that the present invention is carried out by diode and the device property of the distinctive avalanche region of triode, by frequency-locked loop the output phase noise to signal source optimization, by the oscillator frequency locking of 400MHz to one on from 10MHz crystal oscillator frequency multiplication to the signal of 400MHz, to improve phase noise performance of the signal at the low bandwidth near DC, so that the frequency stability for improving a reference source can achieve 10‑7。
Description
Technical field
Present invention relates particularly to a kind of signal source of high stability of superconducting cyclotron, belong to superconducting cyclotron skill
Art field.
Background technique
In superconducting cyclotron, the short-term stability of frequency is sliding mutually related in particle accelerating process, wherein particle
The phase of sliding phase and magnetic field and the relationship of electric field are mutually in the integral cunning that radius is the position R
And Δ B (R) therein is and true field Bs(R) difference, Δ ω are to corresponding to BsFrequencies omega difference on the frequency
Value, Δ E are the maximum energy increased of corresponding every circle.When stable magnetic field, accelerator frequency stability will reach 10-7,
It can guarantee sliding mutually less than 5 ° caused by high frequency.The frequency stability of existing common crystals is 10-5.This method is being effectively reduced
The stability of signal source is improved in the case where cost.However, being badly in need of the signal of more high stability with the development of new technology
Source.
Summary of the invention
It is frequency stability is 10 that the crystal oscillator of existing cyclotron, which uses,-5400MHz signal source provided for DDS
Standard time clock proposes a kind of scheme on this basis, by the method for frequency multiplication and frequency locking, by the oscillator frequency locking of 400MHz to one
It is a on from 10MHz crystal oscillator frequency multiplication to the signal of 400MHz.The phase noise performance at low bandwidth to improve signal, to mention
The frequency stability of high a reference source can achieve 10-7。
Specifically, the present invention provides a kind of signal source of high stability of superconducting cyclotron, the signal source include according to
The 80MHz times of frequency module (1) of secondary connection, 80MHz frequency stabilization loop module (2), 400MHz times of frequency module (3), 400MHz frequency stabilization ring
Road (4).
Further, the signal source of high stability of superconducting cyclotron as described above, 80MHz times of frequency module (1),
Including sequentially connected pulse-generating circuit, 80MHz matched filtering circuit, 80MHz amplifying circuit, 80MHz matched filtering circuit.
Further, the signal source of high stability of superconducting cyclotron as described above, the pulse-generating circuit be by
What diode and two subharmonic frequency multiplication of triode were realized.
Further, the signal source of high stability of superconducting cyclotron as described above, the 80MHz frequency stabilization loop mould
Block (2), the loop being made of the frequency discriminator, low-pass filter and 80MHz crystal oscillator that are linked in sequence.
Further, the signal source of high stability of superconducting cyclotron as described above, the 400MHz times of frequency module
(3), it is sequentially connected and to be formed by No. 5 frequency multipliers, 400MHz matched filtering amplifying circuit, 400MHz matched filter.
Further, the signal source of high stability of superconducting cyclotron as described above, the 400MHz frequency stabilization loop (4)
The loop formed is sequentially connected by phase discriminator, low-pass filter and 400MHzDRO resonant oscillator.
Further, the signal source of high stability of superconducting cyclotron as described above, the 400MHzDRO resonance oscillations
Device is the triode low noise oscillator by DRO as resonant cavity.
A kind of signal source of high stability of superconducting cyclotron provided by the invention, it is peculiar by diode and triode
Avalanche region device property carry out frequency-doubling method, by frequency-locked loop the output phase noise to signal source optimization.
By the oscillator frequency locking of 400MHz to one on from 10MHz crystal oscillator frequency multiplication to the signal of 400MHz.It is attached in DC to improve signal
Phase noise performance at close low bandwidth, so that the frequency stability for improving a reference source can achieve 10-7.The signal source at
This is low, noise is small, and frequency stability is high, reduces the sliding phase problem due to caused by frequency stability in superconducting cyclotron.
Detailed description of the invention
Fig. 1 is the system schematic of the signal source of high stability of superconducting cyclotron of the present invention.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
A kind of module improving frequency stability in superconducting cyclotron by frequency multiplication and phase-locked loop, it is main to form
Module four parts as shown in Figure 1, be made of: being respectively 80MHz times of frequency module (1), 80MHz frequency stabilization loop module (2), 400MHz
Times frequency module (3), 400MHz frequency stabilization loop (4).
Wherein times frequency module of 80MHz mainly passes through pulse by the signal that the reference crystal oscillator of the high stability of 10MHz exports
Generation circuit, which is shaped to broad pulse circuit via diode by one, then carries out burst pulse shaping via triode,
Parameter by adjusting circuit guarantees the length and size of circuit pulse, and output end connects 80MHz matched filtering circuit to arteries and veins
The frequency spectrum of punching extracts and impedance matching, then connects 80MHz amplifying circuit and extracts previous stage by chopping
Signal amplify, the output of amplifying circuit connects 80MHz matched filtering circuit, and the output of 80MHz matched filtering circuit is made
For the output of 80MHz times of frequency module.
The input of 80MHz frequency stabilization loop module is the output of upper level, the output of the crystal oscillator of the signal and 80MHz
The output frequency of the crystal oscillator of 80MHz is controlled after progress phase demodulation by low-pass filter.
Times frequency module of 400MHz, as No. five frequency multipliers, then passes through 400MHz's by the way of nonlinear transmission line
Matched filtering amplifying circuit, then the output via 400MHz matched filtering as the module.
The output and input of the 400MHzDRO resonant oscillator as phase discriminator of 400MHz times of frequency module, and phase discriminator
The signal of control is controlled the output of 400MHzDRO resonant oscillator by low-pass filter by output.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.If in this way, belonging to the model of the claims in the present invention and its equivalent technology to these modifications and changes of the present invention
Within enclosing, then the present invention is also intended to include these modifications and variations.
Claims (5)
1. a kind of signal source of high stability of superconducting cyclotron, it is characterised in that:
The signal source includes sequentially connected 80MHz times of frequency module (1), 80MHz frequency stabilization loop module (2), 400MHz frequency multiplication
Module (3), 400MHz frequency stabilization loop (4), the 80MHz times of frequency module (1) include sequentially connected pulse-generating circuit,
80MHz matched filtering circuit, 80MHz amplifying circuit, 80MHz matched filtering circuit, the pulse-generating circuit is by diode
It is realized with two subharmonic frequency multiplication of triode, which is shaped to broad pulse by diode, then carries out narrow arteries and veins via triode
Shaping is rushed, then the parameter by adjusting circuit guarantees the length and size of circuit pulse.
2. the signal source of high stability of superconducting cyclotron as described in claim 1, it is characterised in that:
The 80MHz frequency stabilization loop module (2) is frequency discriminator, low-pass filter and 80MHz crystal oscillation by being linked in sequence
The loop of device composition.
3. the signal source of high stability of superconducting cyclotron as described in claim 1, it is characterised in that:
The 400MHz times of frequency module (3) is by No. 5 frequency multipliers, 400MHz matched filtering amplifying circuit, 400MHz matched filtering
Device is sequentially connected composition.
4. the signal source of high stability of superconducting cyclotron as described in claim 1, it is characterised in that:
The 400MHz frequency stabilization loop (4) is to be sequentially connected group by phase discriminator, low-pass filter and 400MHzDRO resonant oscillator
At loop.
5. the signal source of high stability of superconducting cyclotron as claimed in claim 4, it is characterised in that:
The 400MHzDRO resonant oscillator is the triode low noise oscillator by DRO as resonant cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610616930.9A CN106231777B (en) | 2016-07-29 | 2016-07-29 | A kind of signal source of high stability of superconducting cyclotron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610616930.9A CN106231777B (en) | 2016-07-29 | 2016-07-29 | A kind of signal source of high stability of superconducting cyclotron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106231777A CN106231777A (en) | 2016-12-14 |
| CN106231777B true CN106231777B (en) | 2019-01-29 |
Family
ID=57535717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610616930.9A Active CN106231777B (en) | 2016-07-29 | 2016-07-29 | A kind of signal source of high stability of superconducting cyclotron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106231777B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240993A (en) * | 2020-10-14 | 2021-01-19 | 中国原子能科学研究院 | Evaluation system and method for compact cyclotron magnetic field stability measurement |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108650771A (en) * | 2018-07-12 | 2018-10-12 | 北京航天广通科技有限公司 | Self-excitation stable control method, system and the storage medium of accelerator superconductor cavity |
| CN109561567B (en) * | 2018-11-27 | 2020-01-24 | 中国原子能科学研究院 | High-power high-stability variable-load high-frequency acceleration system |
| CN109893777B (en) * | 2019-02-26 | 2020-06-23 | 中国原子能科学研究院 | Phase detector and proton beam phase stabilizing device comprising same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931404A (en) * | 2010-06-21 | 2010-12-29 | 胡伟东 | Phase lock technique-based microwave carbon testing frequency synthesizer |
| CN102545826A (en) * | 2010-12-10 | 2012-07-04 | 上海卫星工程研究所 | Local frequency source of secondary frequency conversion receiver for satellite |
| CN103762979A (en) * | 2014-01-03 | 2014-04-30 | 东南大学 | Broadband frequency source for LTE channel simulator |
| CN104378113A (en) * | 2014-10-31 | 2015-02-25 | 北京航空航天大学 | Microwave frequency source device for Raman laser system of atom interferometer |
| CN104467835A (en) * | 2014-10-28 | 2015-03-25 | 东南大学 | Frequency-agile and low-phase-noise frequency source |
-
2016
- 2016-07-29 CN CN201610616930.9A patent/CN106231777B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931404A (en) * | 2010-06-21 | 2010-12-29 | 胡伟东 | Phase lock technique-based microwave carbon testing frequency synthesizer |
| CN102545826A (en) * | 2010-12-10 | 2012-07-04 | 上海卫星工程研究所 | Local frequency source of secondary frequency conversion receiver for satellite |
| CN103762979A (en) * | 2014-01-03 | 2014-04-30 | 东南大学 | Broadband frequency source for LTE channel simulator |
| CN104467835A (en) * | 2014-10-28 | 2015-03-25 | 东南大学 | Frequency-agile and low-phase-noise frequency source |
| CN104378113A (en) * | 2014-10-31 | 2015-02-25 | 北京航空航天大学 | Microwave frequency source device for Raman laser system of atom interferometer |
Non-Patent Citations (2)
| Title |
|---|
| 一种5MHz ～ 20GHz 低相位噪声频率源的研制;李兆荣等;《通信与广播电视》;20111231;全文 |
| 星载合成孔径雷达频率源;费元春;《北京理工大学学报》;19921231;全文 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240993A (en) * | 2020-10-14 | 2021-01-19 | 中国原子能科学研究院 | Evaluation system and method for compact cyclotron magnetic field stability measurement |
| CN112240993B (en) * | 2020-10-14 | 2021-07-20 | 中国原子能科学研究院 | Evaluation system and method for compact cyclotron magnetic field stability measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106231777A (en) | 2016-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106231777B (en) | A kind of signal source of high stability of superconducting cyclotron | |
| CN102270986B (en) | Optimized passive rubidium atomic frequency scale servo control circuit | |
| JP2016533083A (en) | Clock doubler with duty cycle correction | |
| CN104467835A (en) | Frequency-agile and low-phase-noise frequency source | |
| CN203708219U (en) | 3.4G digital phase-locking frequency multiplier for CPT clock | |
| CN104300977A (en) | Low-phase-noise high-speed frequency synthesizing system | |
| CN108270439A (en) | A kind of compound system frequency synthesizer based on novel frequency adjusting method | |
| CN111147073B (en) | Microwave frequency locking device | |
| CN201878129U (en) | Microwave frequency band low-phase noise locking phase medium oscillator | |
| CN208445546U (en) | A kind of broadband low phase noise frequency synthesizer based on optical-electronic oscillator | |
| CN204517791U (en) | A kind of automatic amplitude of oscillation calibration circuit of voltage controlled oscillator | |
| CN104052465A (en) | High-frequency-point, high-stability, low-noise and constant-temperature crystal oscillator | |
| CN103916124B (en) | A kind of injection locking frequency dividing structure of band automatic frequency verifying function | |
| CN102624366A (en) | Rotary traveling wave oscillator with high power output of multiple energy injection locking | |
| CN102142837A (en) | Inductance-capacitance voltage-controlled oscillator capable of lowering phase noise near carrier | |
| RU2625557C1 (en) | Method for determining borders of operating range of impulse generator of phase synchronisation systems and device for its implementation | |
| CN204615807U (en) | A kind of digital phase-locked frequency multiplier device | |
| CN201869161U (en) | High-frequency high-stability phase-locking OCXO | |
| JP2019054459A (en) | Signal processor and signal processing method | |
| CN110071418B (en) | Phase-locked loop of differential mode-locked laser | |
| CN204304928U (en) | A kind of voltage-controlled oscillator circuit | |
| CN204046573U (en) | Parallel DDS encourages PLL frequency synthesizer | |
| CN205622622U (en) | Atom frequency scale | |
| TW561694B (en) | Phase locked loop operating method and apparatus | |
| CN202168065U (en) | Double DDS and PLL frequency synthesizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |