CN220874776U - Multi-electrode neutron tube and neutron generator - Google Patents
Multi-electrode neutron tube and neutron generator Download PDFInfo
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- CN220874776U CN220874776U CN202322570818.4U CN202322570818U CN220874776U CN 220874776 U CN220874776 U CN 220874776U CN 202322570818 U CN202322570818 U CN 202322570818U CN 220874776 U CN220874776 U CN 220874776U
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- 150000002500 ions Chemical class 0.000 claims abstract description 131
- 230000001629 suppression Effects 0.000 claims abstract description 83
- 230000005684 electric field Effects 0.000 claims abstract description 45
- 102000004310 Ion Channels Human genes 0.000 claims abstract description 12
- 238000000605 extraction Methods 0.000 claims abstract description 10
- 230000001133 acceleration Effects 0.000 claims abstract description 9
- 230000002265 prevention Effects 0.000 claims abstract description 4
- 238000003491 array Methods 0.000 claims description 4
- 238000010884 ion-beam technique Methods 0.000 abstract description 23
- 239000007789 gas Substances 0.000 description 23
- 230000000630 rising effect Effects 0.000 description 14
- 230000002829 reductive effect Effects 0.000 description 7
- -1 deuterium ions Chemical class 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052805 deuterium Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052722 tritium Inorganic materials 0.000 description 3
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- 230000000452 restraining effect Effects 0.000 description 2
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
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Abstract
The utility model provides a multi-electrode neutron tube and a neutron generator, which belong to the technical field of neutron sources, wherein the multi-electrode neutron tube mainly comprises a gas regulator, an ion source, a suppression electrode, a switching electrode, an acceleration electrode, a neutron target and a shell which are sequentially arranged; the ion source is used for generating plasma and comprises an ion source shell and an ion source anode arranged on the inner side of the ion source shell, and the ion source anode is connected with positive direct current power supply; the suppression electrode is connected with a direct current power supply or grounded, and a suppression electric field is formed between the suppression electrode and the ion source shell; the switch electrode is connected with an alternating power supply, and a switch electric field is formed between the switch electrode and the suppression electrode and used for controlling the extraction and the prevention of the target ions. The suppression electric field can enable target ions to move towards the neutron target along the ion channel, meanwhile, electron extraction is suppressed, electrons are limited in the ion source, stable generation of the ion beam is guaranteed, and the quality of the ion beam is guaranteed.
Description
Technical Field
The utility model relates to the technical field of neutron sources, in particular to a multi-electrode neutron tube and a neutron generator.
Background
The neutron tube is a miniaturized accelerator type neutron source for generating high-energy neutrons by fusion reaction, which is characterized in that an ion source, an accelerating electrode, a neutron target and other devices are all sealed in a vacuum cavity, and under the action of an external controller and a power supply, an ion beam generated by the ion source is bombarded on the neutron target after being accelerated to generate fusion reaction, so that high-energy neutrons are generated. The neutron tube can be used in the fields of oil gas well logging, mineral exploration, industrial raw material component analysis, explosive detection and the like.
An electrode may be disposed between the ion source housing and the accelerating electrode, the electrode being connected to a power source to effect a flow-through ion beam. However, in the operation stage of the neutron tube, more electrons in the ion source overflow, and the ion beam cannot be stably produced, so that the quality of the produced ion beam is reduced.
Disclosure of utility model
Aiming at the defects in the prior art, the application provides a multi-electrode neutron tube and a neutron generator, which are used for solving the technical problems that the electron in an ion source overflows more and an ion beam cannot be stably produced, and the quality of the produced ion beam is reduced.
In a first aspect, an embodiment of the present application provides a multi-electrode neutron tube, including a gas regulator, an ion source, a switching electrode, an accelerating electrode, a neutron target, and a housing, which are sequentially disposed; wherein the gas regulator is arranged on the shell end cover at one side of the ion source and is used for providing gas for generating target ions; the ion source is used for generating plasma and comprises an ion source shell and an ion source anode arranged on the inner side of the ion source shell, and the ion source anode is connected with a positive direct current power supply; during the ion source operation phase, the ion source housing is provided with a positive voltage; the accelerating electrode is connected with a negative direct current power supply; an accelerating electric field is formed between the accelerating electrode and the switching electrode and is used for accelerating the target ions passing through the switching electrode and entering the accelerating electric field so as to bombard the neutron target; further comprises: a suppression electrode disposed between the ion source and the switching electrode such that the ion source, the suppression electrode, the switching electrode, the acceleration electrode, and the neutron target are sequentially axially arranged with a target ion channel formed between the ion source and the neutron target; the suppression electrode is connected with a direct current power supply or grounded, and a suppression electric field is formed between the suppression electrode and the ion source shell and used for suppressing the extraction of electrons in the ion source.
According to the embodiment of the utility model, the switch electrode is connected with an alternating power supply, and a switch electric field is formed between the switch electrode and the suppression electrode and used for controlling the extraction and the prevention of the target ions; wherein, under the condition that the voltage of the switch electrode is positive voltage, target ions in the switch electric field are limited in the switch electric field; in the case that the voltage of the switching electrode is a negative voltage, target ions in the switching electric field leave the switching electric field through the switching electrode.
According to an embodiment of the utility model, the suppression electrode is provided with at least one suppression electrode through hole.
According to an embodiment of the present utility model, a plurality of the suppression electrode via arrays are distributed.
According to an embodiment of the utility model, the switching electrode is provided with at least one switching electrode through hole.
According to an embodiment of the utility model, a plurality of the switching electrode via arrays are distributed.
According to an embodiment of the utility model, the voltage of the suppression electrode is less than the voltage of the ion source housing.
According to an embodiment of the present utility model, the ion source housing, the suppression electrode, the switching electrode, and the acceleration electrode are all provided with coaxial through-hole structures, which form the target ion channel.
According to an embodiment of the utility model, the ion source housing is connected with the ion source anode in an insulating manner.
In a second aspect, an embodiment of the present application provides a neutron generator, including: the multi-electrode neutron tube according to any of the preceding embodiments of the application.
The application provides a multi-electrode neutron tube and a neutron generator, and the technical scheme provided by the embodiment of the application has at least the following beneficial effects:
Under the action of the restraining electric field, target ions can move towards the neutron target along the target ion channel, and electrons are restrained from being led out, so that the electrons are limited in the ion source, the overflow of the electrons is reduced or even avoided, the stable generation of the ion beam is ensured, and the quality of the ion beam is ensured.
The anode of the ion source is connected with the direct current power supply to continuously form an ion beam, so that the problems of ionization delay and slow rising of ion flow caused by the fact that the ion source can finish plasma establishment and reach a stable state after a certain period of time are avoided; the switch electrode is connected with a pulse high-voltage power supply to realize positive and negative alternation of the voltage of the electric switch electrode, thereby realizing neutron pulse, accelerating the rising edge speed and reducing the rising edge duration.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a multi-electrode neutron tube according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a suppression electrode in a multi-electrode neutron tube according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a suppression electrode in another multi-electrode neutron tube according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a neutron generator according to an embodiment of the present application.
Reference numerals and corresponding description:
1: an ion source; 11: an ion source housing; 12: an ion source anode;
2: a suppression electrode; 21: suppression of electrode through holes; 22: a suppression electrode body;
3: a switching electrode;
4: an accelerating electrode;
5: a neutron target;
6: a housing;
7: a gas regulator;
8: a power supply system;
9: and a control system.
Detailed Description
The present application is described in detail below, examples of embodiments of the application are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. Further, if detailed description of the known technology is not necessary for the illustrated features of the present application, it will be omitted. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wireless connections. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
As shown in fig. 1, the embodiment of the application provides a multi-electrode neutron tube, which comprises a gas regulator 7, an ion source 1, a switching electrode 3, an accelerating electrode 4, a neutron target 5 and a shell 6 which are sequentially arranged; wherein, the gas regulator 7 is arranged on the end cover of the shell 6 at one side of the ion source 1 and is used for providing gas for generating target ions; the ion source 1 is used for generating plasma and comprises an ion source shell 11 and an ion source anode 12 arranged on the inner side of the ion source shell 11, wherein the ion source anode 12 is connected with positive direct current power supply; during the ion source 1 operation phase, the ion source housing 11 is provided with a positive voltage; the accelerating electrode 4 is connected with a negative direct current power supply; an accelerating electric field is formed between the accelerating electrode 4 and the switching electrode 3 and is used for accelerating target ions passing through the switching electrode 3 and entering the accelerating electric field so as to bombard the neutron target 5; the multi-electrode neutron tube further comprises a suppression electrode 2, wherein the suppression electrode 2 is arranged between the ion source 1 and the switch electrode 3, so that the ion source 1, the suppression electrode 2, the switch electrode 3, the acceleration electrode 4 and the neutron target 5 are axially arranged in sequence, and a target ion channel is formed between the ion source 1 and the neutron target 5; the suppression electrode 2 is connected to a dc power supply or grounded, and a suppression electric field is formed between the suppression electrode 2 and the ion source housing 11 to suppress extraction of electrons from the ion source 1.
In the embodiment of the present application, the material of the housing 6 is an insulating material, and the housing 6 is a cylindrical structure or a conical cylinder structure. The vacuum accommodating cavity is formed by the enclosure wall of the enclosure 6, and the gas regulator 7, the ion source 1, the suppression electrode 2, the switching electrode 3, the acceleration electrode 4 and the neutron target 5 are all arranged in the vacuum accommodating cavity. The gas regulator 7 is a gas releaser in the prior art, and is used for releasing gas to regulate the gas in the housing 6, so as to ensure that the ion source 1 can smoothly ionize the gas to form an ion beam. Specifically, a gas regulator 7 is installed beside the ion source 1, the gas regulator 7 includes a material having hydrogen absorbing capability and a heating member, and deuterium-tritium mixed gas or deuterium gas is stored in the gas regulator 7 for releasing and absorbing the gas. The gas regulator 7 is connected to a low-voltage direct current power supply, and is used for releasing gas into the ion source 1 when the heating component heats up.
The walls of the ion source housing 11 enclose a cavity. The ion source anode 12 is disposed in the cavity and connected to the dc power supply, so that the ion source 1 can continuously form an ion beam, and the problems of ionization delay and slow rising of the ion current caused by that the ion source 1 must be used for a certain period of time to complete the plasma establishment and reach a stable state are avoided.
The target ions include at least one of deuterium ions and tritium ions, wherein both deuterium ions and tritium ions are positively charged. The ion source 1, the suppression electrode 2, the switching electrode 3 and the accelerating electrode 4 are sequentially arranged at intervals. The suppression electrode 2, the switching electrode 3 and the acceleration electrode 4 are disposed between the ion source 1 and the neutron target 5. Ion through holes are formed in the corresponding positions of the suppression electrode 2, the switching electrode 3 and the accelerating electrode 4. The ion source 1 is adapted for ionization to form an ion beam that strikes a neutron target 5 through a corresponding plurality of ion vias. The switching electrode 3 is used to control whether target ions pass through the switching electrode 3, thereby controlling neutron production. The voltage of the suppression electrode 2 is lower than the voltage of the ion source housing 11, and a suppression electric field is formed between the suppression electrode 2 and the ion source housing 11 to prevent electrons from being extracted, i.e., to prevent electrons from entering the suppression electric field.
According to the multi-electrode neutron tube provided by the embodiment of the application, under the action of the electric field inhibition, target ions can move towards a neutron target along a target ion channel, and electron extraction is inhibited, so that electrons are limited in an ion source, and electron overflow is reduced or even avoided, so that stable ion beam generation is ensured, and the ion beam quality is ensured.
According to the embodiment of the utility model, the switch electrode 3 is connected with an alternating power supply, and a switch electric field is formed between the switch electrode 3 and the suppression electrode 2 and is used for controlling the extraction and the prevention of target ions; wherein, under the condition that the voltage of the switch electrode 3 is positive voltage, the target ions in the switch electric field are limited in the switch electric field; when the voltage of the switching electrode 3 is negative, the target ions in the switching electric field leave the switching electric field through the switching electrode 3.
In this embodiment, the switching electrode 3 is connected to an alternating power supply to achieve positive and negative alternation of the voltage of the switching electrode 3, and a switching electric field is formed between the suppression electrode 2 and the switching electrode 3 to achieve pulsed extraction of ions, thereby achieving neutron pulse, so that the rising edge speed and the rising edge duration can be controlled, for example, the rising edge duration is limited to a design duration, which can be less than 3 microseconds.
The target ions in the suppression electric field can enter the switching electric field regardless of the voltage value of the switching electrode 3. In the case where the voltage of the switching electrode 3 is a positive voltage, the target ions in the switching electric field cannot pass through the switching electrode 3; in the case where the voltage of the switching electrode 3 is a negative voltage, the target ions in the switching electric field can pass through the switching electrode 3. Further, in the case that the voltage of the switching electrode 3 is a negative voltage, when the voltage of the switching electrode 3 is greater than the voltage of the ion source housing 11 and the voltage of the suppression electrode 2, the target ions are blocked, that is, the target ions in the switching electric field cannot pass through the switching electrode 3; conversely, when the voltage of the switching electrode 3 is smaller than both the voltage of the ion source housing 11 and the voltage of the suppression electrode 2, the target ions are extracted, i.e., the target ions in the switching electric field pass through the switching electrode 3. The rising edge time of the neutron pulse of the multi-electrode neutron tube is the rising edge time of the pulse power supply of the switching electrode 3.
As can be seen from the above, the multi-electrode neutron tube in the embodiment of the application has two working modes, namely, a direct current mode and a pulse mode, which can be freely switched. Under the condition that the power supply connected with the switch electrode 3 always outputs direct-current negative voltage, the multi-electrode neutron tube in the embodiment of the application is in a direct-current mode; when the power supply connected with the switch electrode 3 outputs positive and negative alternating voltages, the multi-electrode neutron tube in the embodiment of the application is in a pulse mode.
Next, as shown in fig. 2 and 3, according to an embodiment of the present utility model, the suppression electrode 2 is provided with at least one suppression electrode through hole 21.
From the foregoing, the suppression electrode through-hole 21 is a part of the target ion channel. The ion beam extracted from the ion source 1 passes through the suppression electrode through-hole 21 under the effect of the suppression electric field. Alternatively, the suppression electrode through hole 21 is a circular through hole.
As shown in fig. 2, the suppression electrode 2 includes a suppression electrode body 22 and at least one suppression electrode through hole 21 opened in the suppression electrode body 22. The suppression electrode body 22 has a disk-like structure, and in the case where there is only one suppression electrode through hole 21, the suppression electrode through hole 21 is provided centrally on the suppression electrode body 22 and has an appropriate size.
Next, as shown in fig. 3, a plurality of suppression electrode through-holes 21 are distributed in an array according to an embodiment of the present utility model.
In the case where there are a plurality of suppression electrode through holes 21, the plurality of suppression electrode through holes 21 are each centrally disposed, and in some embodiments, the plurality of suppression electrode through holes 21 are in a rectangular array or a circular array; in another writing embodiment, the plurality of suppression electrode through holes 21 are irregularly arranged.
Next, according to an embodiment of the present utility model, the switching electrode 3 is provided with at least one switching electrode through hole.
As can be seen from the foregoing, the switching electrode through-hole is a part of the target ion channel and is located downstream of the suppression electrode through-hole 21. From the through-switching electrode via hole passing through the suppression electrode via hole 21. Optionally, the switching electrode via is a circular via.
In the present embodiment, the suppression electrode 2 and the switching electrode 3 may have the same structure and size. The switching electrode 3 includes a switching electrode body and at least one switching electrode through hole opened in the switching electrode body. The switching electrode body is of a disc-shaped structure, and in the case of only one switching electrode through hole, the switching electrode through hole is centrally arranged on the switching electrode body and has a proper size. Under the condition that the voltage of the switch electrode 3 is negative voltage, the arrangement of the through hole of the switch electrode is favorable for more balanced and stable switch electric field, and the problems of ion beam scattering and sputtering are reduced; when the voltage of the switching electrode 3 is positive, the beam is blocked from being extracted, and the device has good sharp cut-off characteristics, and can form a pulse beam with better frequency characteristics. Thus, control over the rising edge duration can be achieved.
In the case where there are one suppression electrode through hole 21 and one switching electrode through hole, the suppression electrode through hole 21 and the switching electrode through hole 21 are coaxial, which is advantageous in that the ion beam smoothly passes through the suppression electrode 2 and the switching electrode 3, and the loss caused by the ion beam striking the switching electrode is reduced.
Next, according to an embodiment of the present utility model, a plurality of switching electrode via arrays are distributed.
In the case where there are multiple switching electrode vias, the multiple switching electrode vias are all centrally disposed, and in some embodiments, the multiple switching electrode vias are in a rectangular or circular array; in another write embodiment, the plurality of switching electrode vias are randomly arranged. The centers of the suppression electrode 2 and the switching electrode 3 are uniformly provided with a certain number and diameter of round holes for passing ions generated by the ion source 1, and meanwhile, the uniformity of the suppression electric field and the switching electric field can be ensured to the greatest extent.
According to an embodiment of the present utility model, the voltage of the suppression electrode 2 is less than the voltage of the ion source housing 11.
By adopting the scheme, an electric field for inhibiting electron movement can be formed. Since the electrons are negatively charged, the moving direction of the electrons in the suppressing electric field is a direction away from the suppressing electrode 2 to achieve confinement of the electrons.
According to an embodiment of the present utility model, the ion source housing 11, the suppression electrode 2, the switching electrode 3 and the acceleration electrode 4 are all provided with coaxial through-hole structures, which form the target ion channel.
According to an embodiment of the present utility model, the ion source housing 11 is connected in isolation to the ion source anode 12.
Based on the same inventive concept, as shown in fig. 4, an embodiment of the present application provides a neutron generator including the multi-electrode neutron tube according to any of the previous embodiments of the present application.
In this embodiment, the neutron generator further comprises a power supply system 8 and a control system 9 connected with the multi-electrode neutron tube. Wherein the power supply system 8 comprises a power supply respectively connected with the ion source anode 12, the suppression electrode 2, the switching electrode 3, the acceleration electrode 4, the neutron target 5 and the gas regulator 7; the control system 9 is connected with the power supply system 8 and controls the power supply system 8 to control the switching of the generation modes of the multi-electrode neutron tube, the adjustment of the rising edge/falling edge duration of the neutron pulse and the like.
By applying the embodiment of the application, at least the following beneficial effects can be realized:
Under the action of the restraining electric field, target ions can move towards the neutron target along the target ion channel, and electrons are restrained from being led out, so that the electrons are limited in the ion source, the overflow of the electrons is reduced or even avoided, the stable generation of the ion beam is ensured, and the quality of the ion beam is ensured.
The ion source anode is connected with the direct current power supply to continuously form an ion beam, so that the problems of ionization delay and slow rising of ion flow caused by the fact that the ion source can finish plasma establishment and reach a stable state after a certain period of time are avoided. The switch electrode is connected with a pulse high-voltage power supply to realize positive and negative alternation of the voltage of the electric switch electrode, thereby realizing neutron pulse, accelerating the rising edge speed and reducing the rising edge duration.
In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
The foregoing is only a partial embodiment of the present application, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the present application.
Claims (10)
1. A multi-electrode neutron tube comprises a gas regulator (7), an ion source (1), a suppression electrode (2), a switching electrode (3), an accelerating electrode (4), a neutron target (5) and a shell (6) which are sequentially arranged; wherein the gas regulator (7) is arranged on the end cover of the shell (6) at one side of the ion source (1) and is used for providing gas for generating target ions; the ion source (1) is used for generating plasma and comprises an ion source shell (11) and an ion source anode (12) arranged on the inner side of the ion source shell (11), wherein the ion source anode (12) is connected with a positive direct current power supply; during the operating phase of the ion source (1), the ion source housing (11) is provided with a positive voltage; the accelerating electrode (4) is connected with a negative direct current power supply; an accelerating electric field is formed between the accelerating electrode (4) and the switch electrode (3) and is used for accelerating the target ions passing through the switch electrode (3) and entering the accelerating electric field so as to bombard the neutron target (5); characterized by further comprising:
A suppression electrode (2) disposed between the ion source (1) and the switching electrode (3) such that the ion source (1), the suppression electrode (2), the switching electrode (3), the acceleration electrode (4) and the neutron target (5) are sequentially axially arranged, and a target ion channel is formed between the ion source (1) and the neutron target (5);
The suppression electrode (2) is connected with a positive direct current power supply or grounded, and a suppression electric field is formed between the suppression electrode (2) and the ion source housing (11) to suppress extraction of electrons in the ion source (1).
2. The multi-electrode neutron tube according to claim 1, wherein the electrodes are disposed on the tube,
The switch electrode (3) is connected with an alternating power supply, and a switch electric field is formed between the switch electrode (3) and the suppression electrode (2) and used for controlling the extraction and the prevention of the target ions;
Wherein, under the condition that the voltage of the switch electrode (3) is positive voltage, target ions in the switch electric field are limited in the switch electric field;
When the voltage of the switching electrode (3) is negative, target ions in the switching electric field leave the switching electric field through the switching electrode (3).
3. The multi-electrode neutron tube according to claim 1, wherein the electrodes are disposed on the tube,
The suppression electrode (2) is provided with at least one suppression electrode through hole (21).
4. The multi-electrode neutron tube according to claim 3, wherein the electrodes are disposed on the tube,
A plurality of suppression electrode through holes (21) are distributed in an array.
5. The multi-electrode neutron tube according to claim 1, wherein the electrodes are disposed on the tube,
The switching electrode (3) is provided with at least one switching electrode through hole.
6. The multi-electrode neutron tube according to claim 5, wherein,
And a plurality of switch electrode through hole arrays are distributed.
7. The multi-electrode neutron tube according to claim 1, wherein the electrodes are disposed on the tube,
The voltage of the suppression electrode (2) is less than the voltage of the ion source housing (11).
8. The multi-electrode neutron tube according to claim 1, wherein the electrodes are disposed on the tube,
The ion source housing (11), the suppression electrode (2), the switching electrode (3) and the accelerating electrode (4) are all provided with coaxial through hole structures, and the coaxial through hole structures form the target ion channel.
9. The multi-electrode neutron tube according to claim 1 to 8, wherein,
The ion source housing (11) is connected with the ion source anode (12) in an insulating manner.
10. A neutron generator, comprising:
the multi-electrode neutron tube of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322570818.4U CN220874776U (en) | 2023-09-21 | 2023-09-21 | Multi-electrode neutron tube and neutron generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322570818.4U CN220874776U (en) | 2023-09-21 | 2023-09-21 | Multi-electrode neutron tube and neutron generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220874776U true CN220874776U (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322570818.4U Active CN220874776U (en) | 2023-09-21 | 2023-09-21 | Multi-electrode neutron tube and neutron generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220874776U (en) |
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2023
- 2023-09-21 CN CN202322570818.4U patent/CN220874776U/en active Active
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