Adjustable system based on detector ion source calibration experiment

Abstract

The utility model discloses an adjustable system based on a detector ion source calibration experiment, which relates to the field of high-temperature plasma diagnosis, and comprises a support structure, a detection assembly, an ion source calibration module, an ion source calibration module and an ion source calibration module, and the adjusting structure is mounted on the supporting structure, connected with the detection assembly and used for adjusting the position of the detection assembly. The utility model solves the problem that the prior art cannot ensure the sensitive area of a detection piece to be aligned with the ion source beam so as to ensure the experiment precision. By arranging the adjusting structure, the position of the detector can be adjusted conveniently and accurately during a calibration experiment without damaging vacuum, so that the sensitive area of the detector is aligned with an ion source beam.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature plasma diagnostic technology, specifically to an adjustable system based on detector ion source calibration experiments. Background Technology

[0002] In high-temperature plasma, fast ions and neutral particles undergo charge exchange reactions to produce fast neutral particles. These fast neutral particles are not confined by a magnetic field and have a certain probability of escaping from the plasma before ionization. The neutral particle analyzer (NPA) is a diagnostic tool for measuring the energy spectrum of these escaped neutral particles.

[0003] In the field of fusion experimental research, NPA can serve as a diagnostic tool for ion temperature measurement, fast ion physics analysis, and fusion reactor fuel density ratio (D / T) measurement.

[0004] Before being used in device diagnostic experiments, the detectors in NPA need to be calibrated on an ion source platform with known energy. Due to the small sensitive area of ​​the detectors, the ion source beam needs to be adjusted during the calibration experiment to align with the sensitive area of ​​the detectors in order to ensure the accuracy of the experiment. Therefore, there is an urgent need for an adjustable system to be used in detector ion source calibration experiments. Utility Model Content

[0005] The technical problem to be solved by this invention is that it is impossible to guarantee the alignment of the sensitive area of ​​the detector with the ion source beam. The purpose is to provide an adjustable system based on detector ion source calibration experiments to solve the problem that the existing technology cannot guarantee the alignment of the sensitive area of ​​the detector with the ion source beam to ensure experimental accuracy.

[0006] This utility model is achieved through the following technical solution:

[0007] An adjustable system based on detector ion source calibration experiments, comprising:

[0008] Support structure,

[0009] The detection component, located on one side of the support structure, is used to receive and generate signals;

[0010] An adjustment structure, mounted on a support structure and connected to the detection component, is used to adjust the position of the detection component.

[0011] Further optimization involves an adjustable bellows, an adjustable screw, and a screw flange.

[0012] The adjustable bellows is mounted on the support structure;

[0013] The screw flange is installed at one end of the adjustable bellows, and the screw flange is connected to the detection assembly;

[0014] The adjustable screw is rotatably mounted on the support structure, and the adjustable screw is threadedly connected to the screw flange.

[0015] Further optimization involves providing knobs at both ends of the adjustable screw, which, when rotated, drive the adjustable screw to move up and down.

[0016] Further optimization involves using a welded metal bellows.

[0017] Further optimization involves the detection assembly comprising a transition pipe, a vacuum flange, and a detector.

[0018] One end of the transition pipe is connected to the screw flange;

[0019] The vacuum flange is connected to the other end of the transition pipe and is used for signal transmission of the detector inside the vacuum.

[0020] The detector is encapsulated within a transition channel and is used to receive and generate signals.

[0021] Further optimization involves providing a shaft hole in the screw flange to connect with an adjustable bellows.

[0022] Further optimization involves using a diamond detector.

[0023] Further optimization involves providing an ion source platform connection flange at the end of the adjustable bellows furthest from the screw flange, for connecting to the ion source platform.

[0024] Further optimization is achieved by setting the minimum length of the adjustable bellows to 200mm and the maximum length to 250mm.

[0025] Further optimization involves using a stainless steel support structure.

[0026] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0027] 1. By setting an adjustment structure, the position of the detector component can be adjusted with high precision and convenience during calibration experiments without disrupting the vacuum, thereby aligning the sensitive area of ​​the detector component with the ion source beam. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] The attached diagram shows the markings and corresponding component names:

[0031] 1-Ion source platform connecting flange, 2-Support structure, 3-Adjustable bellows, 4-Adjustable screw, 5-Screw flange, 6-Transition pipe, 7-Detector, 8-Vacuum flange. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0033] Example 1

[0034] In the prior art, the detector in NPA needs to be calibrated on an ion source platform with known energy before it can be used for experimental diagnosis of the device. Due to the small sensitive area of ​​the detector, the ion source beam needs to be adjusted during the calibration experiment to align it with the sensitive area of ​​the detector in order to ensure the accuracy of the experiment.

[0035] Based on this, this embodiment provides an adjustable system based on a detector ion source calibration experiment, such as... Figure 1 As shown, it includes:

[0036] Support structure 2, in this embodiment, support structure 2 is a support frame, and a placement space is formed in the middle of the support frame, which is used to support the adjustment structure.

[0037] The detection component, located on the right side of the support structure 2, is used to receive and generate signals;

[0038] An adjustment structure is installed on the support structure 2 and connected to the detection component to adjust the position of the detection component.

[0039] Furthermore, the adjustment structure includes an adjustable bellows 3, an adjustable screw 4, and a screw flange 5.

[0040] The adjustable bellows 3 is mounted on the support structure 2; specifically, the adjustable bellows 3 is hollow inside and located in the placement space. In this embodiment, the adjustable bellows 3 provides flexible support for the adjustable screw 4 and screw flange 5, and the adjustable bellows 3 can adapt to the movement of the screw flange 5. Specifically, the adjustable bellows 3 is a welded metal bellows 3. Specifically, the minimum length of the adjustable bellows 3 is 200mm, and the maximum length of the adjustable bellows 3 is 250mm. That is, the adjustment range of the adjustable bellows 3 is 50mm.

[0041] The screw flange 5 is installed at one end of the adjustable bellows 3 and is connected to the detection component. Specifically, the screw flange 5 is fixedly installed at the right end of the adjustable bellows 3 and is connected to the detection component, so that the detection component moves with the screw flange 5.

[0042] The adjustable screw 4 is rotatably mounted on the support structure 2, and the adjustable screw 4 is threadedly connected to the screw flange 5.

[0043] As can be seen, due to the small sensitive area of ​​the detection component, an adjustment structure is set up in this embodiment to ensure the accuracy of the final calibration experiment. Specifically, the working process of the adjustment structure is as follows:

[0044] Rotating the adjustable screw 4, which is threadedly connected to the screw flange 5, allows the screw flange 5 to move smoothly upward under the constraint of the adjustable bellows 3. This, in turn, causes the connected detection component to move upward. In this embodiment, the screw flange 5 can move upward by approximately 10mm, with an adjustment accuracy of 1.75mm. This means that for every rotation of the adjustable screw 4, the screw flange 5 moves upward by 1.75mm.

[0045] Conversely, rotating the adjustable screw 4 in the opposite direction, the adjustable screw 4 is threadedly connected to the screw flange 5. Under the limiting influence of the adjustable bellows 3, the screw flange 5 moves smoothly downwards, thereby driving the connected detection component downwards. In this embodiment, the screw flange 5 can move downwards by approximately 10mm, with an adjustment accuracy of 1.75mm, meaning that for every rotation of the adjustable screw 4, the screw flange 5 moves downwards by 1.75mm.

[0046] Furthermore, both ends of the adjustable screw 4 are equipped with knobs. These knobs facilitate operation of the adjustable screw 4 by the operator.

[0047] Furthermore, the detection assembly includes a transition pipe 6, a vacuum flange 8, and a detector 7.

[0048] One end of the transition pipe 6 is connected to the screw flange 5; specifically, the length of the transition pipe 6 is 5cm, such as... Figure 1 As shown, the connection end between the transition pipe 6 and the screw flange 5 has a dimension of CF100, and the connection end between the transition pipe 6 and the vacuum flange 8 has a dimension of CF35. The screw flange 5 has a shaft hole for communication with the adjustable bellows 3, with a dimension of CF35, thereby ensuring that the beam particles from the ion source platform can pass through normally.

[0049] Specifically, the vacuum flange 8 is connected to the right end of the transition pipe 6 and is used for signal transmission of the vacuum detector 7; the vacuum flange 8 is CF35 with a thickness of 19mm.

[0050] The detector 7 is encapsulated within the transition pipe 6 and is used to receive and generate signals, and output signals through the vacuum flange 8.

[0051] Specifically, the working process of the detection component is as follows:

[0052] The detector 7 is installed in the vacuum transition pipe 6. After the beam particles from the ion source platform pass through the transition pipe 6, they bombard the detector 7 to deposit energy and generate a signal. During this process, the adjustable bellows 3 and the screw flange 5 always maintain a vacuum and keep connected to ensure the normal passage of the beam particles.

[0053] Furthermore, an ion source platform connecting flange 1 is provided at the end of the adjustable bellows 3 furthest from the screw flange 5 for connecting the ion source platform, facilitating subsequent calibration experiments. Specifically, the ion source platform connecting flange 1 is located at the left end of the adjustable bellows 3 and is a CF100 standard flange. The ion source platform connecting flange 1 is fixed to the support structure 2 with bolts, and the ion source platform connecting flange 1 and the adjustable bellows 3 are welded together with stainless steel, further ensuring the stability of the ion source platform connecting flange 1.

[0054] Furthermore, the support structure 2 is made of stainless steel, which ensures the rigidity and strength of the support structure 2.

[0055] Example 2

[0056] In existing technologies, neutral particle analyzers (NPAs) are diagnostic tools used to measure the energy spectrum of these escaping neutral particles. In the field of fusion experimental research, NPAs can serve as diagnostic tools for ion temperature measurement, fast ion physics analysis, and fusion reactor fuel density ratio (D / T) measurement. Traditional NPAs using electromagnetic field analysis are generally large in size and mass. Solid-state NPAs, which emerged at the beginning of this century, are much smaller than traditional NPAs; however, due to the poor radiation resistance of their silicon diode detectors, they have a short lifespan in environments with high neutron radiation. With the increase in auxiliary heating power and plasma parameters, the neutron radiation around fusion experimental devices is becoming increasingly intense, making solid-state NPAs increasingly unsuitable.

[0057] Therefore, in view of the technical problems of the traditional silicon diode detector 7 having poor radiation resistance and short lifespan in environments with strong neutron radiation, it is urgent to design a neutral particle energy spectrum analysis system based on other high-performance detectors 7 for application in high-temperature plasma diagnostic research.

[0058] In this regard, according to another embodiment of the present invention, specifically, the detector 7 is a diamond detector 7.

[0059] The diamond detector 7 is also a small-sized detector 7 with excellent radiation resistance, making it more suitable for use in the high-intensity neutron irradiation environment of fusion devices. In addition, the diamond detector 7 also has the advantages of low thermal noise, insensitivity to visible light, high upper limit of operating temperature, fast response speed, and insensitivity to gamma rays.

[0060] In this embodiment, the diamond detector 7 is a micronA-5710. The diamond in the sensitive area of ​​the detector has a diameter of 2 mm and a thickness of 50 μm, and its surface is coated with a 50 nm titanium film electrode. The sensitive area of ​​the diamond detector 7 is mm². 2 Diamond has the advantage of being radiation resistant, but its compact size requires high beam accuracy from the ion source.

[0061] Specifically, in this embodiment, the diamond detector 7 has a sensitive area of ​​2mm in diameter and the outer packaging of the detector 7 has a diameter of 12mm. The diamond detector 7 is encapsulated in the transition pipe 6 and outputs a signal through the vacuum flange 8.

[0062] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An adjustable system based on detector ion source calibration experiments, characterized in that, include: Support structure, The detection component, located on one side of the support structure, is used to receive and generate signals; An adjustment structure, mounted on a support structure and connected to the detection component, is used to adjust the position of the detection component.

2. The adjustable system based on detector ion source calibration experiment according to claim 1, characterized in that, The adjustment structure includes an adjustable bellows, an adjustable screw, and a screw flange. The adjustable bellows is mounted on the support structure; The screw flange is installed at one end of the adjustable bellows, and the screw flange is connected to the detection assembly; The adjustable screw is rotatably mounted on the support structure, and the adjustable screw is threadedly connected to the screw flange.

3. The adjustable system based on detector ion source calibration experiment according to claim 2, characterized in that, Both ends of the adjustable screw are equipped with knobs, which are used to rotate the adjustable screw to move it up and down.

4. The adjustable system based on detector ion source calibration experiment according to claim 2, characterized in that, The adjustable bellows is a welded metal bellows.

5. The adjustable system based on detector ion source calibration experiment according to claim 2, characterized in that, The detection assembly includes a transition pipe, a vacuum flange, and a detector. One end of the transition pipe is connected to the screw flange; The vacuum flange is connected to the other end of the transition pipe and is used for signal transmission of the detector inside the vacuum. The detector is encapsulated within a transition channel and is used to receive and generate signals.

6. The adjustable system based on detector ion source calibration experiment according to claim 5, characterized in that, The screw flange has a shaft hole for communication with the adjustable bellows.

7. The adjustable system based on detector ion source calibration experiment according to claim 5, characterized in that, The detector is a diamond detector.

8. The adjustable system based on detector ion source calibration experiment according to claim 2, characterized in that, The adjustable bellows is provided with an ion source platform connecting flange at the end away from the screw flange, for connecting to the ion source platform.

9. The adjustable system based on detector ion source calibration experiment according to claim 2, characterized in that, The minimum length of the adjustable bellows is 200mm, and the maximum length of the adjustable bellows is 250mm.

10. The adjustable system based on detector ion source calibration experiment according to claim 1, characterized in that, The supporting structure is made of stainless steel.

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