CN203859921U - Polarized electron cyclotron emission (ECE) diagnosis system for measuring plasma current distribution - Google Patents
Polarized electron cyclotron emission (ECE) diagnosis system for measuring plasma current distribution Download PDFInfo
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Abstract
The utility model belongs to a nuclear fusion plasma diagnostic field and relates to a polarized electron cyclotron emission (ECE) diagnosis system for measuring plasma current distribution and safety factor polarization. The system is composed of a sweep frequency source, a signal generator, frequency multipliers, mixers, isolators, polarized antenna systems, intermediate frequency systems, detection systems, video amplification systems, a data acquisition and analysis system, and the like. According to the polarized electron cyclotron emission (ECE) diagnosis system, the pitch angle of magnetic field distribution as well as plasma current and safety factor q distribution are obtained through measuring the polarization distribution ratios of electron cyclotron emission; the basic properties of an X mode and an O mode of electron cyclotron emission waves are utilized, and intensity ratios of electron cyclotron emission waves at different angles are measured through adopting two antenna channels, so that the pitch angle of the magnetic field distribution can be obtained, and the current distribution and safety factor distribution can be obtained; and the measurement of the system is not affected by external conditions such as plasma heating, so that passive measurement of the system can be avoided, and therefore, data about the current distribution and the safety factor distribution can be obtained at any time.
Description
Technical field
The invention belongs to a kind of nuclear fusion plasma diagnostic field, be specifically related to a kind of advantages such as plasma current distributes and polarized electron cyclotron radiation (ECE) diagnostic system of factor of safety distribution, and it has the time and spatial resolution is high, cost is low, locality is good of measuring.
Background technology
The poloidal magnetic field of Tokamak Plasma is to be produced by plasma current, poloidal magnetic field or factor of safety q=rB
Φ/ RB
θdistribution be a very important parameter of plasma confinement research, to analyzing formation, hydromagnetic instability, sawtooth avalanche and the distribution of plasma radial electric field etc. of plasma transport, magnetic island, all have great importance.In recent years, for realizing the steady operation of plasma height constraint, proposed multiple advanced tokamak operating scheme, such as making plasma center electric current produce cutting cloth with one's hands behind one's back, corresponding plasma current is the distribution of hollow; Another kind of common method is the weak shearing in magnetic field, and comparatively mild distribution appears in core magnetic field configuration, and the value of its factor of safety remains near 1 or size 1.These operating schemes all plasma Current Control have proposed more strict requirement.
Plasma current control needs the CURRENT DISTRIBUTION of Measurement accuracy plasma or q to distribute.Have at present 3 kinds of methods to measure CURRENT DISTRIBUTION, they are respectively that inner magnetic configuration is rebuild (EFIT), far infrared polarization interference is measured Faraday rotation and Ac stark effect (MSE) diagnosis.EFIT adopts external magnetic metrical information, the electric current distribution of the inner magnet measurement data reestablishing plasma body of recycling plasma, and the external magnetic probe signals but this method places one's entire reliance upon, plasma is the reconstruction of core particularly, and error is larger.The angle of pitch that Faraday rotation and Ac stark effect (MSE) method distributes for measuring poloidal magnetic field, then by inversion integral etc. plasma current distributes and factor of safety q distributes.Faraday rotation effect generally adopts far infrared polar interferometer systematic survey, and its basic principle is based on electromagnetic magneto optical effect, when a branch of linearly polarized wave is the plasma inside of B by having magnetic field, if the angular frequency of ripple is than plasma frequency ω
pewith electron gyro-frequency ω
ceall much larger, and wave vector k is while being parallel to the magnetic direction in plasma, and plasma is just with similar without the optically-active medium absorbing, and it can make the electromagnetic plane of polarization of propagating therein rotate, famous Faraday rotation effect that Here it is.If the anglec of rotation of known electronic density and ripple, just can obtain along the magnetic field of measuring string, measure the string integral field on diverse location string, just can obtain magnetic field intensity in distribution radially.But what measure due to the method is the integration amount in magnetic field, even know the distribution of electron density, also will suppose the distribution function in magnetic field, tries to achieve the distribution situation in magnetic field by function inverting, therefore can introduce larger error.Dynamically the diagnosis of Stark polarization is a kind of active diagnosing method that depends on neutral beam injection technique and grow up, the H that it is launched by Measurement accuracy
αthe polarization state of spectrum obtains the information of the magnetic field angle of pitch, is a kind of localized measurement.But the broadening of spectral lines being caused by various factors is much larger than the Stark splitting of spectral line, cause between different components seriously overlappingly, particularly under downfield condition, be difficult to obtain singlet line component.In addition, in the communication process of polarised light, can, because the factors such as mirror-reflection and window glass are introduced the polarization state that extra Faraday rotation changes light, to measuring, cause various uncertainties.In addition, MSE also depends on neutral beam injection condition and could measure.Based on above various reasons, the diagnosis of MSE polarization is the difficulty maximum of generally acknowledging in the world always but is also one of most important diagnosis.The system of far infrared polar interferometer and dynamically Stark polarization diagnosis is more complicated all, and system bulk is larger, and price is difficult in maintenance.
Summary of the invention
The object of this invention is to provide a kind of polarization ECE diagnostic system that plasma current distributes of measuring, it can solve plasma current distribution measurement system as Ac stark effect and far infrared polarization interference diagnostic system complexity, systems bulky, price, the problem such as difficult in maintenance.
The present invention is achieved in that a kind of polarization ECE diagnostic system that plasma current distributes of measuring, and it comprises microwave Sweep Source, swept signal generator, frequency sweep ripple power splitter, isolator, microwave power distributor, microwave multiplier, microwave mixer, microwave isolator, band stop filter, positive 45 degree reception antenna systems, negative 45 degree reception antenna systems, plasma, first group of intermediate frequency amplifier, band pass filter, second group of intermediate frequency amplifier, demodulation system, video amplifier system, Data collecting and analysis system, described swept signal generator output is connected with the input of frequency sweep ripple power splitter, an output of frequency sweep ripple power splitter is connected with the Waveform Control end of microwave Sweep Source, another output of frequency sweep ripple power splitter is connected with the signal input part of Data collecting and analysis system, the microwave output source of microwave Sweep Source is connected with the input of isolator, the output of isolator is connected with the input of microwave power distributor, the output of the microwave power distributor respectively input of the microwave multiplier different from two connects, the output of microwave multiplier be connected with the local oscillator input of two microwave mixers respectively, positive 45 degree reception antenna systems and negative 45 degree reception antenna systems receive respectively the microwave signal of plasma resonance, their the input respectively input of the band stop filter different from two connects.The output of band stop filter is connected with the input of two microwave isolators respectively, the output of microwave isolator is connected with the rf inputs of two microwave mixers respectively, the medium frequency output end of microwave mixer is connected with the input of first group of intermediate frequency amplifier respectively, the output of first group of intermediate frequency amplifier is connected with the input of band pass filter respectively, the output of band pass filter is connected with the input of second group of intermediate frequency amplifier respectively, the output of second group of intermediate frequency amplifier is connected with the input of demodulation system respectively, demodulation system output is connected with the input of video amplifier system respectively, the output of video amplifier system is connected with the signal input part of Data collecting and analysis system respectively.
Described microwave Sweep Source, swept signal generator, frequency sweep ripple power splitter, isolator, microwave power distributor and microwave multiplier form microwave source system, local oscillator for microwave mixer drives signal, this system has continuous wave and step stepping frequency sweep function, and the frequency sweep cycle of whole measurement frequency band is at 1-10ms.
Described microwave Sweep Source is voltage-controlled microwave oscillator or the microwave synthetic source in a broadband, by applied voltage, controls microwave output or the inner output stepping frequency sweep microwave of oneself controlling.
Described microwave isolator is respectively used to microwave one-way transmission, prevents that loop from producing parasitic reflection, and isolation is greater than 20dB.
Described microwave multiplier be one with the Whole frequency band microwave frequency amplifier of power drive, it is for the low frequency microwave frequency of microwave Sweep Source output being amplified to the working frequency range of native system, and power output can enough drive microwave mixer.
Described microwave mixer, microwave isolator, band stop filter, positive 45 degree reception antenna systems and negative 45 degree reception antenna systems form independently receiving system of two-way, from positive and negative 45 degree of middle vertical plane, receive the electron gyroradiation signal from plasma resonance respectively, and in microwave mixer, downconvert to intermediate-freuqncy signal.
Described positive 45 degree microwave antenna systems become respectively positive and negative 45 degree with negative 45 degree microwave antennas with the middle vertical plane of tokamak device.
First group of described intermediate frequency amplifier, band pass filter, second group of intermediate frequency amplifier, demodulation system, video amplifier system form intermediate-freuqncy signal treatment system, for intermediate-freuqncy signal to be measured is changed into vision signal, export to Data collecting and analysis system, band pass filter selects 100-800MHz.
Advantage of the present invention is, the present invention utilizes the fundamental property of electron gyroradiation ripple X mould and O mould, adopt 2 antenna channels to measure the electron gyroradiation intensity of wave ratio of different angles, obtain the angle of pitch of Distribution of Magnetic Field, and then obtain CURRENT DISTRIBUTION and factor of safety distribution.The not impact of the external condition such as subject plasma heating and passive measurement of the measurement of system, therefore can obtain the data of CURRENT DISTRIBUTION and factor of safety molecule at any time.In addition, when system adopts the work of continuous wave frequency sweep mode, can measure the continuous variation from plasma core to fringe magnetic field angle, this is other diagnosis, as MSE and far infrared polar interferometer can not reach.The time resolution of system is controlled by the sweep velocity of microwave Sweep Source, and time resolution can be done in hundreds of microsecond.System configuration is simple, and cost is low, is a kind of plasma current distribution and factor of safety distribution diagnostic means that relatively has application prospect.
Accompanying drawing explanation
Fig. 1 is a kind of polarization ECE diagnostic system schematic diagram that plasma current distributes of measuring provided by the present invention;
Fig. 2 is the relation of magnetic field angle and measured value ratio.
In figure: 1 microwave Sweep Source, 2 swept signal generators, 3 frequency sweep ripple power splitters, 4 isolators, 5 microwave power distributors, 6 microwave multipliers, 7 microwave mixers, 8 microwave isolators, 9 band stop filters, 10 positive 45 degree reception antenna systems, 11 negative 45 degree reception antenna systems, 12 plasmas, 13 first groups of intermediate frequency amplifiers, 14 band pass filters, 15 second groups of intermediate frequency amplifiers, 16 demodulation systems, 17 video amplifier systems, eighteen data collection and analytical system.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail:
As shown in Figure 1, a kind of polarization ECE diagnostic system schematic diagram that plasma current distributes and factor of safety distributes of measuring provided by the present invention.This microwave system comprises microwave Sweep Source 1, swept signal generator 2, frequency sweep ripple power splitter 3, isolator 4, microwave power distributor 5, microwave multiplier 6, microwave mixer 7, microwave isolator 8, band stop filter 9, positive 45 degree reception antenna systems 10, negative 45 degree reception antenna systems 11, plasma 12, first group of intermediate frequency amplifier 13, band pass filter 14, second group of intermediate frequency amplifier 15, demodulation system 16, video amplifier system 17, Data collecting and analysis system 18 microwave devices such as grade or subsystem form.
Swept signal generator 2 outputs are connected with the input of frequency sweep ripple power splitter 3, an output of frequency sweep ripple power splitter 3 is connected with the Waveform Control end of microwave Sweep Source 1, another output of frequency sweep ripple power splitter 3 is connected with the signal input part of Data collecting and analysis system 18, the microwave output source of microwave Sweep Source 1 is connected with the input of isolator 4, the output of isolator 4 is connected with the input of microwave power distributor 5, the output of the microwave power distributor 5 respectively input of the microwave multiplier 6 different from two connects, the output of microwave multiplier 6 be connected with the local oscillator input of two microwave mixers 7 respectively.
Positive 45 degree reception antenna systems 10 and negative 45 degree reception antenna systems 11 receive respectively the microwave signal that plasma 12 radiation come, and their the input respectively input of the band stop filter 9 different from two connects.The output of band stop filter 9 is connected with the input of two microwave isolators 8 respectively, and the output of microwave isolator 8 is connected with the rf inputs of two microwave mixers 7 respectively.
The medium frequency output end of microwave mixer 7 is connected with the input of first group of intermediate frequency amplifier 13 respectively, the output of first group of intermediate frequency amplifier 13 is connected with the input of band pass filter 14 respectively, the output of band pass filter 14 is connected with the input of second group of intermediate frequency amplifier 15 respectively, the output of second group of intermediate frequency amplifier 15 is connected with the input of demodulation system 16 respectively, demodulation system 16 outputs are connected with the input of video amplifier system 17 respectively, and the output of video amplifier system 17 is connected with the signal input part of Data collecting and analysis system 18 respectively.
Described microwave Sweep Source 1, swept signal generator 2, frequency sweep ripple power splitter 3, isolator 4, microwave power distributor 5 and microwave multiplier 6 etc. form microwave source system, for the local oscillator driving signal of microwave mixer 7.This system requirements has continuous wave and step stepping frequency sweep function, and the frequency sweep cycle of whole measurement frequency band need to be in 1-10ms left and right.
Described microwave Sweep Source 1 is voltage-controlled microwave oscillator or the microwave synthetic source in a broadband, by applied voltage, controls microwave output or the inner output stepping frequency sweep microwave of oneself controlling.In order to improve the temporal resolution of system, need frequency switching time to be better than Microsecond grade.
Described microwave isolator 4 and 8 is respectively used to microwave one-way transmission, prevents that loop from producing parasitic reflection, and then affects certainty of measurement and the part microwave device safety of system, therefore requires isolation to be greater than 20dB.
Described microwave multiplier 6 is one, and with the Whole frequency band microwave frequency amplifier of power drive, it is amplified to the working frequency range of native system for the low frequency microwave frequency that microwave Sweep Source 1 is exported, and power output needs enough driving microwave mixers 7.
Described microwave mixer 7, microwave isolator 8, band stop filter 9, positive 45 degree reception antenna systems 10 and negative 45 degree reception antenna systems 11 form independently receiving system of two-way, from positive and negative 45 degree of middle vertical plane, receive from the next electron gyroradiation signal of plasma resonance respectively, and downconvert to intermediate-freuqncy signal in microwave mixer 7.
Described positive 45 degree microwave antenna systems 10 become respectively positive and negative 45 degree with negative 45 degree microwave antennas 11 with the middle vertical plane of tokamak device.This angle layout makes the measurement of system the simplest, but also can adopt other angle.Can also adopt individual antenna in addition, system is rotated along direction of measurement, the angle of antenna while finding measured value maximum, is the angle of pitch in magnetic field.
Described band stop filter 9 is for testing at high power electronic cyclotron resonance auxiliary heating, absorb electron cyclotron resonace ripple, prevent because of plasma absorption badly, and cause microwave system to damage, particularly the degradation of microwave mixer 7 and microwave multiplier 6 or burn.
First group of described intermediate frequency amplifier 13, band pass filter 14, second group of intermediate frequency amplifier 15, demodulation system 16, video amplifier system 17 form intermediate-freuqncy signal treatment systems, for intermediate-freuqncy signal to be measured is changed into vision signal, export to Data collecting and analysis system 18.Band pass filter 14 is determined by spatial discrimination and the sensitivity of system, conventionally selects 100-800MHz, for Tokamak Plasma, measures, and typical space resolution is approximately 2-3cm.
Below in conjunction with accompanying drawing 1, describe a kind of operation principle of measuring the polarization ECE diagnostic system of plasma current distribution and factor of safety distribution provided by the present invention in detail:
Microwave Sweep Source 1, swept signal generator 2, frequency sweep ripple power splitter 3, isolator 4, microwave power distributor 5 and microwave multiplier 6 etc. form the microwave source system of this measuring system, export to microwave mixer 7 and drive signal as local oscillator.In system, utilize swept signal generator 2 to control 1 output of microwave Sweep Source continuously or frequency sweep microwave, through microwave multiplier 6 frequencys multiplication to system works frequency.Microwave multiplier 6 is one, and with the Whole frequency band microwave frequency amplifier of power drive, the microwave power of its output is approximately 13dBm, to drive microwave mixer 7.
The reception antenna of system is two standard gain antennas that become positive and negative 45 degree with middle vertical plane, for measuring the signal difference of this both direction.Vertical along continuous straight runs of plasma, when there is no poloidal magnetic field, the signal that this both direction is measured is the mixed mode of X mould and O mould, and measured value is identical.When there is poloidal magnetic field, there is a little angle in the magnetic field of plasma and original vertical, causes occurring certain skew at the measured value of this both direction.Their bias size can be derived the angle in magnetic field, and Fig. 2 is poloidal magnetic field angle and the positive 45 degree antenna measurement values of calculating and the relation of bearing the ratio between 45 degree antenna measurement values.Because the poloidal magnetic field angle in plasma is produced by plasma current, by inversion integral, can obtain the CURRENT DISTRIBUTION of plasma.
In Fig. 2, X-axis is the ratio between positive 45 degree antenna measurement values and negative 45 degree antenna measurement values, and y axle is the magnetic field variable angle for causing due to gas ions electric current.Below in conjunction with accompanying drawing 2, describe the error analysis of system of the present invention in detail:
The measure error of native system is mainly caused by the measure error to electron temperature of system.Conventionally the electron temperature measurement precision of native system can reach 10eV left and right, and the plasma that is 1keV with respect to electron temperature, error when it is incorporated into ratio when positive and negative 45 degree are measured is approximately 2%.In Fig. 2, ratio is 1.02 o'clock, and magnetic field angle is approximately 0.4 degree.Therefore system will be introduced the error of about 0.4 degree to the response error of electron temperature.Generally, the magnetic field angle of Tokamak Plasma is approximately 0-8 degree from center to edge.From Fig. 2, find, when 8 spend, its ratio reaches 1.3, so system only has a certain impact to the measurement of the less magnetic field of core angle, and at plasma confinement region and edge, certainty of measurement is higher.
Because the measurement space position of system is subject to the FREQUENCY CONTROL of microwave local oscillator, when system adopts the work of continuous wave frequency sweep mode, can measure the continuous variation from plasma core to fringe magnetic field angle, this is other diagnosis, as MSE and polar interferometer can not reach.Conventionally polar interferometer can only the several points of measurement space, and the time resolution of MSE is poor, and need to have neutral beam heating to exist.Diagnostic system provided by the invention is passive measurement, does not rely on the external conditions such as neutral beam heating, the real-time measurement that can provide plasma current to distribute.The sweep velocity of the microwave source of native system can reach hundreds of microsecond in addition, and time resolution will be much better than MSE system.
Be explained in detail adopting polarization ECE systematic survey plasma current to distribute in the present invention with implementing by reference to the accompanying drawings above, also analyze the measure error of system of the present invention simultaneously.But the present invention is not limited to above-described embodiment, as fixing up an aerial wire, other angle also can analyze the magnetic field angle of pitch, plasma current distribution and factor of safety distribution, adopt in addition single rotable antenna also can realize above-mentioned measurement, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from aim of the present invention, make various variations.The content not being described in detail in the present invention all can adopt prior art.
Claims (8)
1. measure the polarization ECE diagnostic system that plasma current distributes, it is characterized in that: it comprises microwave Sweep Source (1), swept signal generator (2), frequency sweep ripple power splitter (3), isolator (4), microwave power distributor (5), microwave multiplier (6), microwave mixer (7), microwave isolator (8), band stop filter (9), positive 45 degree reception antenna systems (10), negative 45 degree reception antenna systems (11), plasma (12), first group of intermediate frequency amplifier (13), band pass filter (14), second group of intermediate frequency amplifier (15), demodulation system (16), video amplifier system (17), Data collecting and analysis system (18), described swept signal generator (2) output is connected with the input of frequency sweep ripple power splitter (3), an output of frequency sweep ripple power splitter (3) is connected with the Waveform Control end of microwave Sweep Source (1), another output of frequency sweep ripple power splitter (3) is connected with the signal input part of Data collecting and analysis system (18), the microwave output source of microwave Sweep Source (1) is connected with the input of isolator (4), the output of isolator (4) is connected with the input of microwave power distributor (5), the output of microwave power distributor (5) the respectively input of the microwave multiplier (6) different from two connects, the output of microwave multiplier (6) be connected with the local oscillator input of two microwave mixers (7) respectively, positive 45 degree reception antenna systems (10) and negative 45 degree reception antenna systems (11) receive respectively the microwave signal that plasma (12) radiation comes, their the input respectively input of the band stop filter (9) different from two connects, the output of band stop filter (9) is connected with the input of two microwave isolators (8) respectively, the output of microwave isolator (8) is connected with the rf inputs of two microwave mixers (7) respectively, the medium frequency output end of microwave mixer (7) is connected with the input of first group of intermediate frequency amplifier (13) respectively, the output of first group of intermediate frequency amplifier (13) is connected with the input of band pass filter (14) respectively, the output of band pass filter (14) is connected with the input of second group of intermediate frequency amplifier (15) respectively, the output of second group of intermediate frequency amplifier (15) is connected with the input of demodulation system (16) respectively, demodulation system (16) output is connected with the input of video amplifier system (17) respectively, the output of video amplifier system (17) is connected with the signal input part of Data collecting and analysis system (18) respectively.
2. a kind of polarization ECE diagnostic system that plasma current distributes of measuring as claimed in claim 1, it is characterized in that: described microwave Sweep Source (1), swept signal generator (2), frequency sweep ripple power splitter (3), isolator (4), microwave power distributor (5) and microwave multiplier (6) form microwave source system, local oscillator for microwave mixer (7) drives signal, this system has continuous wave and step stepping frequency sweep function, and the frequency sweep cycle of whole measurement frequency band is at 1-10ms.
3. a kind of polarization ECE diagnostic system that plasma current distributes of measuring as claimed in claim 1, it is characterized in that: described microwave Sweep Source (1) is voltage-controlled microwave oscillator or the microwave synthetic source in a broadband, by applied voltage, control microwave output or the inner output stepping frequency sweep microwave of oneself controlling.
4. a kind of polarization ECE diagnostic system that plasma current distributes of measuring as claimed in claim 1, it is characterized in that: described microwave isolator (4) and microwave isolator (8) are respectively used to microwave one-way transmission, prevent that loop from producing parasitic reflection, isolation is greater than 20dB.
5. a kind of polarization ECE diagnostic system that plasma current distributes of measuring as claimed in claim 1, it is characterized in that: described microwave multiplier (6) be one with the Whole frequency band microwave frequency amplifier of power drive, it is for the low frequency microwave frequency of microwave Sweep Source (1) output being amplified to the working frequency range of native system, and power output can enough drive microwave mixer (7).
6. a kind of polarization ECE diagnostic system that plasma current distributes of measuring as claimed in claim 1, it is characterized in that: described microwave mixer (7), microwave isolator (8), band stop filter (9), positive 45 degree reception antenna systems (10) and negative 45 degree reception antenna systems (11) form independently receiving system of two-way, from positive and negative 45 degree of middle vertical plane, receive from the next electron gyroradiation signal of plasma resonance respectively, and downconvert to intermediate-freuqncy signal in microwave mixer (7).
7. a kind of polarization ECE diagnostic system that plasma current distributes of measuring as claimed in claim 1, is characterized in that: described positive 45 degree microwave antenna systems (10) become respectively positive and negative 45 degree with negative 45 degree microwave antennas (11) with the middle vertical plane of tokamak.
8. a kind of polarization ECE diagnostic system that plasma current distributes of measuring as claimed in claim 1, it is characterized in that: described first group of intermediate frequency amplifier (13), band pass filter (14), second group of intermediate frequency amplifier (15), demodulation system (16), video amplifier system (17) form intermediate-freuqncy signal treatment system, for intermediate-freuqncy signal to be measured is changed into vision signal, export to Data collecting and analysis system (18), band pass filter (14) selects 100-800MHz.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101599A (en) * | 2014-05-04 | 2015-11-25 | 核工业西南物理研究院 | Polarized electron cyclotron emission (ECE) diagnosis system for measuring plasma current distribution |
| CN106647330A (en) * | 2016-12-23 | 2017-05-10 | 核工业西南物理研究院 | Real-time plasma configuration reconstructing system and real-time plasma configuration reconstructing method for Tokamak |
| CZ306799B6 (en) * | 2016-04-18 | 2017-07-12 | Fyzikální ústav AV ČR, v.v.i. | A method of measuring deposition low pressure plasma using wave resonance of electron cyclotron waves and a device for performing this method |
| CN107896412A (en) * | 2017-09-27 | 2018-04-10 | 中国科学院合肥物质科学研究院 | A kind of high frequency magnetic probe diagnostic system for being used to measure radio frequency wave property |
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2014
- 2014-05-04 CN CN201420223581.0U patent/CN203859921U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101599A (en) * | 2014-05-04 | 2015-11-25 | 核工业西南物理研究院 | Polarized electron cyclotron emission (ECE) diagnosis system for measuring plasma current distribution |
| CN105101599B (en) * | 2014-05-04 | 2017-11-24 | 核工业西南物理研究院 | A kind of polarization ECE diagnostic systems for measuring plasma current distribution |
| CZ306799B6 (en) * | 2016-04-18 | 2017-07-12 | Fyzikální ústav AV ČR, v.v.i. | A method of measuring deposition low pressure plasma using wave resonance of electron cyclotron waves and a device for performing this method |
| CN106647330A (en) * | 2016-12-23 | 2017-05-10 | 核工业西南物理研究院 | Real-time plasma configuration reconstructing system and real-time plasma configuration reconstructing method for Tokamak |
| CN106647330B (en) * | 2016-12-23 | 2019-09-17 | 核工业西南物理研究院 | A kind of Plasma shape real-time reconstructing system and method applied to tokamak |
| CN107896412A (en) * | 2017-09-27 | 2018-04-10 | 中国科学院合肥物质科学研究院 | A kind of high frequency magnetic probe diagnostic system for being used to measure radio frequency wave property |
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