CN219201942U - Calibration device and system for electric field magnetic field parallel neutral particle analyzer - Google Patents
Calibration device and system for electric field magnetic field parallel neutral particle analyzer Download PDFInfo
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- CN219201942U CN219201942U CN202320595602.0U CN202320595602U CN219201942U CN 219201942 U CN219201942 U CN 219201942U CN 202320595602 U CN202320595602 U CN 202320595602U CN 219201942 U CN219201942 U CN 219201942U
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Abstract
The utility model relates to neutral particle analyzer equipment, in particular to a calibration device for an electric field magnetic field parallel neutral particle analyzer, and also relates to a calibration system for the electric field magnetic field parallel neutral particle analyzer, wherein the calibration device for the electric field magnetic field parallel neutral particle analyzer comprises an ion channel and an ion emission source, the ion emission source is communicated with an inlet of the ion channel, and an emission part for corresponding to the neutral particle analyzer is arranged at the rear end of the ion channel; the ion emission source is an emission H + ，H 2 + And H 3 + Electron cyclotron resonance ion source for producing different masses by different currents in any one or any combination of ionsHydrogen ions. By adopting the calibration device for the electric field magnetic field parallel neutral particle analyzer and adopting the electron cyclotron resonance ion source, the mass and energy calibration can be carried out on the NPA before the NPA is put into the Tokamak device for use.
Description
Technical Field
The utility model relates to neutral particle analyzer equipment, in particular to a calibration device for an electric field magnetic field parallel neutral particle analyzer, and also relates to a calibration system for the electric field magnetic field parallel neutral particle analyzer.
Background
In high temperature plasma, fast ions and neutral particles undergo charge exchange reaction to generate fast neutral particles, the fast neutral particles are not constrained by a magnetic field, a certain probability exists that the fast neutral particles escape from the plasma before ionization, and a Neutral Particle Analyzer (NPA) is a diagnostic tool for measuring the energy spectrum of the escaping neutral particles, so that the applicant invents a neutral particle analyzer with energy resolution and mass resolution, and patent number: 201922154140.5.
in the field of fusion experimental research, NPA can be used as a diagnostic tool for ion temperature measurement, fast ion physical analysis and fusion reactor fuel density ratio (D/T) measurement. The above-mentioned electric field magnetic field parallel NPA has both mass and energy resolving power, but before being put into use in tokamak devices, it is necessary to calibrate the mass and energy, but at present, such devices are lacking.
Disclosure of Invention
The utility model aims to provide a calibration device for an electric field magnetic field parallel neutral particle analyzer, which is used for calibrating the quality and the energy of an NPA before the NPA is put into a Tokamak device for use, so that the reliability of the subsequent use of the NPA is ensured.
The utility model provides a calibration device for an electric field magnetic field parallel neutral particle analyzer, which comprises an ion channel and an ion emission source, wherein the ion emission source is communicated with an inlet of the ion channel, and an emission part for corresponding to the neutral particle analyzer is arranged at the rear end of the ion channel; the ion emission source is an emission H + ，H 2 + And H 3 + An electron cyclotron resonance ion source of any one or any combination of ions for generating hydrogen ions of different masses by different currents.
The calibration device for the electric field magnetic field parallel neutral particle analyzer adopts the emission H + ，H 2 + And H 3 + Ion(s)The electron cyclotron resonance ion source of (2) can be used for reliably calibrating the mass and the energy of the NPA before the NPA is put into a Tokamak device for use.
In some possible embodiments, the ion channel comprises a dipole magnet disposed on the ion channel for deflecting an ion path; the rear end of the dipole magnet is connected with a first chamber, and the dipole magnet realizes that the separated ion beam flows of three ion beam flows pass through the first chamber; a faraday cage positioned on the ion channel path is disposed within the first chamber.
The Faraday cage is used for measuring the beam current intensity provided by experiments.
In some possible embodiments, the inlet of the ion channel is provided with a high voltage power supply located inside the ion channel.
The high-voltage power supply is used for accelerating ions generated by the ion source to obtain ions with different energies, and the ions are provided for the neutral particle analyzer NPA to realize energy calibration.
In some possible embodiments, the front end of the dipole magnet is provided with a second cavity; the front end of the second chamber is provided with a magnetic insulating ring.
In some possible embodiments, the rear end of the second chamber is provided with a collimation hole positioned on or in the ion channel, and the output end of the collimation hole is connected with the channel where the dipole magnet is positioned.
Another aspect of the present utility model provides an electric field magnetic field parallel neutral particle analyzer calibration system, comprising a calibration device for an electric field magnetic field parallel neutral particle analyzer according to the above aspect and its modification; the electric field magnetic field parallel neutral particle analyzer calibration system further comprises a neutral particle analyzer, and the input end of the neutral particle analyzer is communicated with the output end of the calibration device.
The neutral particle analyzer calibrated by the electric field magnetic field parallel neutral particle analyzer calibration system has the mass and energy resolving power, and the calibrated neutral particle analyzer can be conveniently obtained by adopting the system.
In some possible embodiments, the neutral particle analyzer comprises a housing; an analyzer probe plate is disposed on the housing at an end of the ion path.
In some possible embodiments, a viewing window corresponding to the analyzer probe plate is provided on the housing.
In some possible embodiments, the analyzer probe plate is a transparent plate, and the viewing window is located on a back side of the analyzer probe plate, and a front side of the analyzer probe plate is an ion receiving surface facing the interior of the housing.
The viewing window is positioned on the back of the analyzer probe plate, and the front of the analyzer probe plate is an ion receiving surface facing the interior of the housing.
In some possible embodiments, a magnetic field generating part for providing a magnetic field is arranged in the shell, and an electric field generating part for providing an electric field is arranged in the shell; the magnetic field generating unit and the electric field generating unit are connected in series.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram for explaining the arrangement of the calibration device for an electric field magnetic field parallel neutral particle analyzer of embodiment 1 and the arrangement of the calibration system for an electric field magnetic field parallel neutral particle analyzer of embodiment 2;
reference numerals: the ion source comprises a 1-ion emission source, a 2-high-voltage power supply, a 3-magnetic insulating ring, a 4-second chamber, a 5-collimation hole, a 6-dipole magnet, a 7-first chamber, an 8-Faraday cylinder, a 9-analyzer shell, a 10-magnetic field region, a 11-electric field region, a 12-analyzer detection plate and a 13-observation window.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, it will be apparent to one of ordinary skill in the art that: no such specific details are necessary to practice the utility model. In other instances, well-known structures, circuits, materials, or methods have not been described in detail in order not to obscure the utility model.
Throughout the specification, references to "one embodiment," "an embodiment," "one example," or "an example" mean: a particular feature, structure, or characteristic described in connection with the embodiment or example is included within at least one embodiment of the utility model. Thus, the appearances of the phrases "in one embodiment," "in an example," or "in an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and that the illustrations are not necessarily drawn to scale. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the description of the present utility model, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model.
The electric field magnetic field parallel NPA has both mass and energy resolving power, but before being put into use, the tokamak device needs to be calibrated for mass and energy, and the scheme described in this embodiment is to provide such a device.
Example 1
Referring to fig. 1, a calibration device for an electric field magnetic field parallel neutral particle analyzer comprises an ion channel and an ion emission source 1, wherein the ion emission source 1 is communicated with an inlet of the ion channel, and an emission part for corresponding to the neutral particle analyzer is arranged at the rear end of the ion channel; the ion emission source 1 is an emission H + ，H 2 + And H 3 + An electron cyclotron resonance ion source of any one or any combination of ions for generating hydrogen ions of different masses by different currents.
The calibration device for the electric field magnetic field parallel neutral particle analyzer adopts the ion emitter for emitting ions, and can more reliably calibrate the mass and the energy of the NPA before the NPA is put into the Tokamak device for use.
A further improvement on the above solution is that the ion channel includes a dipole magnet 6 disposed on the ion channel for deflecting the ion path; wherein, the rear end of the dipole magnet 6 is connected with a first cavity; a faraday cage 8 positioned in the ion path is provided in the first chamber 7.
The inlet of the ion channel is provided with a high voltage power supply 2 located inside the ion channel. The high-voltage power supply 2 is used for accelerating ions generated by the ion source to obtain ions with different energies, and the ions are provided for the NPA to realize energy calibration.
The front end of the dipole magnet 6 is provided with a second cavity 4; the front end of the second chamber 4 is provided with a magnetic insulating ring 3. The magnetic insulating ring 3 is used for insulating the high voltage of the high voltage power supply 2, and in order to prevent the dipole magnet 6 from being dried from the magnetic insulation, a second chamber 4 is arranged between the two.
The rear end of the second chamber 4 is provided with a collimation hole 5 positioned on or in the ion channel, and the output end of the collimation hole 5 is connected with the channel where the dipole magnet 6 is positioned. The collimation hole 5 is used for focusing an ion source emitted from the front end, reducing the beam spot diameter and improving the ion emission precision.
The analyzer analyzes ions with different mass and energy emitted by the calibration device, the magnetic field in the cavity of the analyzer deflects ions on the field of view of the top view, the electric field in the cavity of the analyzer deflects ions in the vertical direction, the ions deflected by the magnetic field and the electric field bombard the analyzer detection plate 12, the detection result is observed through the analyzer observation window 13, the parameters such as the internal magnetic field, the electric field, the arrangement mode of the detectors, the interval and the like of the analyzer are adjusted according to the ion resolution result, and the design of an analysis unit is optimized, so that the mass energy calibration of the electric field magnetic field parallel neutral particle analyzer is realized.
Example 2
Referring to fig. 1, the calibration system of the electric field magnetic field parallel neutral particle analyzer comprises a calibration device for the electric field magnetic field parallel neutral particle analyzer according to the embodiment 1 and the modification thereof; the electric field magnetic field parallel neutral particle analyzer calibration system further comprises a neutral particle analyzer, and the input end of the neutral particle analyzer is communicated with the output end of the calibration device. The neutral particle analyzer calibrated by the electric field magnetic field parallel neutral particle analyzer calibration system has the mass and energy resolving power, and the calibrated neutral particle analyzer can be conveniently obtained by adopting the system.
The neutral particle analyzer comprises a housing 9; the housing 9 is provided with an analyzer probe plate 12 at the end of the ion path. The shell 9 is provided with an observation window 13 corresponding to the analyzer detection plate 12, and the analyzer detection plate 12 is a transparent plate, so that the detection result of the analyzer detection plate 12 can be observed more conveniently.
A magnetic field generating part for providing a magnetic field is arranged in the shell 9, and an electric field generating part for providing an electric field is arranged in the shell 9; the magnetic field generating unit and the electric field generating unit are connected in series.
Neutral particle analyzer analysis unit consisting of magnetic field and electric field connected in series, H + And D + After deflection by the analysis unit, mass resolution is realized between different rows, and the different rows are differentThe location enables energy resolution.
Ions deflect along the flight path through the magnetic field area 10 generated by the magnetic field generating part and the electric field area 11 generated by the electric field generating part, enter the free flight area and bombard the detector array on the detection plate. The radius of the ion trajectory in the magnetic field region 10 is determined by the ion momentum and the trajectory in the electric field region 11 is determined by the ion energy.
Ions with different masses and energies led out by an ion source are deflected by a deflection magnet, focused by a Faraday cylinder 8, ion beam flows enter an NPA analysis unit, after mass and energy are resolved, the ions fly for a certain distance and bombard a detection plate of a detection unit, the arrangement condition of the ions on a bombarding surface is observed through visible glass in a cavity of the analysis unit, the magnetic field, the electric field and the position of the detection plate of the detection unit of the analysis unit are correspondingly adjusted, the arrangement of the NPA is optimized, and the NPA is calibrated in mass and energy according to detection results.
The foregoing detailed description of the utility model has been presented for purposes of illustration and description, and it should be understood that the foregoing is by way of illustration and example only, and is not intended to limit the scope of the utility model.
Claims (10)
1. A calibration device for an electric field magnetic field parallel neutral particle analyzer, comprising:
an ion channel;
the ion emission source is communicated with the inlet of the ion channel, and the rear end of the ion channel is provided with an emission part corresponding to the neutral particle analyzer;
the ion emission source is an emission H + ，H 2 + And H 3 + An electron cyclotron resonance ion source of any one or any combination of ions for generating hydrogen ions of different masses by different currents.
2. The calibration device for an electric-field magnetic-field parallel neutral particle analyzer as claimed in claim 1, characterized in that,
the ion channel comprises a dipole magnet which is arranged on the ion channel and used for deflecting an ion path;
wherein, the rear end of the dipole magnet is connected with a first cavity;
a faraday cage positioned on the ion channel path is disposed within the first chamber.
3. Calibration device for an electric-magnetic-field parallel neutral particle analyzer as claimed in claim 2, characterized in that,
the inlet of the ion channel is provided with a high-voltage power supply positioned in the ion channel.
4. A calibration device for an electric-magnetic-field parallel neutral particle analyzer as claimed in claim 3, characterized in that,
the front end of the dipole magnet is provided with a second cavity;
the front end of the second chamber is provided with a magnetic insulating ring.
5. The calibration device for an electric field magnetic field parallel neutral particle analyzer as claimed in claim 4, characterized in that,
and the rear end of the second chamber is provided with a collimation hole positioned on or in the ion channel, and the output end of the collimation hole is connected with the channel where the dipole magnet is positioned.
6. The electric field magnetic field parallel neutral particle analyzer calibration system is characterized in that,
calibration device for an electric field magnetic field parallel neutral particle analyzer comprising according to any of claims 1-5;
the electric field magnetic field parallel neutral particle analyzer calibration system further comprises a neutral particle analyzer, and the input end of the neutral particle analyzer is communicated with the output end of the calibration device.
7. The electric-magnetic field parallel neutral particle analyzer calibration system of claim 6, wherein,
the neutral particle analyzer includes a housing;
an analyzer probe plate is disposed on the housing at an end of the ion path.
8. The electric-magnetic field parallel neutral particle analyzer calibration system of claim 7, wherein,
and an observation window corresponding to the analyzer detection plate is arranged on the shell.
9. The electric-magnetic field parallel neutral particle analyzer calibration system of claim 8, wherein,
the analyzer detection plate is a transparent plate;
the viewing window is positioned on the back of the analyzer probe plate, and the front of the analyzer probe plate is an ion receiving surface facing the interior of the housing.
10. The electric-magnetic field parallel neutral particle analyzer calibration system of claim 7, wherein,
a magnetic field generating part for providing a magnetic field is arranged in the shell;
an electric field generating part for providing an electric field is arranged in the shell;
the magnetic field generating unit and the electric field generating unit are connected in series.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320595602.0U CN219201942U (en) | 2023-03-23 | 2023-03-23 | Calibration device and system for electric field magnetic field parallel neutral particle analyzer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320595602.0U CN219201942U (en) | 2023-03-23 | 2023-03-23 | Calibration device and system for electric field magnetic field parallel neutral particle analyzer |
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| CN219201942U true CN219201942U (en) | 2023-06-16 |
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| CN202320595602.0U Active CN219201942U (en) | 2023-03-23 | 2023-03-23 | Calibration device and system for electric field magnetic field parallel neutral particle analyzer |
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