CN111292866A - Heavy ion production device for nuclear track membrane industrial production - Google Patents
Heavy ion production device for nuclear track membrane industrial production Download PDFInfo
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- CN111292866A CN111292866A CN202010146079.4A CN202010146079A CN111292866A CN 111292866 A CN111292866 A CN 111292866A CN 202010146079 A CN202010146079 A CN 202010146079A CN 111292866 A CN111292866 A CN 111292866A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K5/00—Irradiation devices
- G21K5/04—Irradiation devices with beam-forming means
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/001—Arrangements for beam delivery or irradiation
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Abstract
The invention relates to a heavy ion production device for the industrial production of a nuclear pore membrane, which comprises an ion source, an LEBT beam line, a particle accelerator, an HEBT beam line and a membrane irradiation terminal; the ion source is used for generating heavy ion beams with high charge states and carrying out primary acceleration on the heavy ion beams; the LEBT beam line is used for analyzing the heavy ion beam and transmitting the heavy ion beam to the particle accelerator in a matching way; the particle accelerator mainly accelerates the heavy ion beam and injects the heavy ion beam into the HEBT beam line; the HEBT beam splits the injected heavy ion beam into a plurality of strands of heavy ion beams and then transmits the heavy ion beams to a plurality of film irradiation terminals respectively, and the film irradiation terminals lead out the heavy ion beams and irradiate the film placed in the atmospheric environment. The invention can place the film in the atmospheric environment for irradiation, so that the film can be conveniently and quickly replaced, the time for replacing the film is greatly reduced, and a plurality of terminals can simultaneously irradiate the film at the same time, thereby greatly improving the irradiation efficiency of the film and further improving the production efficiency of the nuclear track film.
Description
Technical Field
The invention relates to a heavy ion production device, in particular to a heavy ion production device for the industrial production of a nuclear pore membrane, and belongs to the technical field of nuclear pore membrane production.
Background
The heavy ion nuclear pore membrane has irreplaceable excellent functions in the aspects of water treatment, air filtration, clean energy (such as lithium ion battery diaphragms) and the like, has unique functions in the aspect of novel special functional materials, and is expected to have a lot of breakthrough progresses in the aspects of novel civil and military materials.
At present, the internationally existing special device for irradiating the nuclear pore membrane can provide heavy ion mononuclear energy of about 3MeV/u, the membrane to be irradiated can only be placed in a vacuum state, only one irradiation terminal works in the same time period, the irradiation efficiency of the membrane is not high, and the production efficiency of the nuclear pore membrane is low.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a heavy ion production apparatus for industrial production of a nuclear pore membrane.
In order to achieve the purpose, the invention adopts the following technical scheme: a heavy ion production device for the industrial production of a nuclear track membrane comprises an ion source, an LEBT beam line, a particle accelerator, an HEBT beam line and a membrane irradiation terminal; the ion source is used for generating heavy ion beams with high charge states and carrying out primary acceleration on the heavy ion beams; the LEBT beam line is arranged between an outlet of the ion source and an inlet of the particle accelerator and is used for analyzing heavy ion beams generated by the ion source so as to select heavy ions suitable for acceleration according to the requirements of different types of nuclear pore membranes and then transmitting the heavy ions to the particle accelerator in a matching manner; the particle accelerator mainly accelerates heavy ion beams and then injects the heavy ion beams into the HEBT beam line; the HEBT beam splits the injected heavy ion beam into a plurality of strands of heavy ion beams and then transmits the heavy ion beams to a plurality of film irradiation terminals respectively, and the film irradiation terminals lead out the heavy ion beams and irradiate the film placed in the atmospheric environment.
Preferably, the LEBT beam line comprises, in order: the first solenoid magnetic lens is used for focusing or defocusing the extracted heavy ion beam current; the bidirectional correcting magnet is used for adjusting the heavy ion beam current to a central position; an analyzing dipole magnet for analyzing heavy ion species and selecting heavy ions suitable for acceleration; a first combined quadrupole magnet for focusing or defocusing the selected heavy ion beam; the bidirectional deflection dipolar magnet is used for deflecting the direction of the heavy ion beam; and the second combined quadrupole magnet and the second solenoidal magnetic lens are used for focusing or defocusing the heavy ion beam.
Preferably, the HEBT beam line comprises, in sequence: at least one beam splitting device is sequentially arranged along the transmission direction of the HEBT beam line and is used for splitting a heavy ion beam current led out by the particle accelerator into a plurality of heavy ion beams; a deflection dipole magnet for deflecting the direction of the heavy ion beam to be transmitted to the film irradiation terminal; the focusing quadrupole magnet is used for focusing or defocusing the extracted heavy ion beam; the horizontal scanning magnet and the vertical scanning magnet are used for enabling beam spots of the heavy ion beam to be uniform.
Preferably, the LEBT beam line is connected to a plurality of ion sources at the same time, and the plurality of ion sources are operated alternately in a very short time interval.
In the heavy ion production apparatus, the ion source is preferably a superconducting ion source and/or an ECR ion source.
In the heavy ion production apparatus, preferably, the average beam current intensity of the heavy ions with high charge states generated by the ion source is in the order of hundreds of microamperes.
The heavy ion production apparatus, preferably, the particle accelerator is capable of accelerating a heavy ion beam to a single nuclear energy of about 5MeV/u to 20 MeV/u.
The heavy ion production device, preferably, the particle accelerator is a superconducting cyclotron.
Due to the adoption of the technical scheme, the invention has the following advantages: 1. the invention adopts the ion source to provide high-charge-state heavy ions, and accelerates the high-charge-state heavy ions to the single nuclear energy of about 5MeV/u to 20MeV/u through the particle accelerator, so that the heavy ions can penetrate through the vacuum membrane window and have enough penetration distance in the atmospheric environment, therefore, the film can be placed in the atmospheric environment for irradiation, the film can be conveniently and quickly replaced, the time for replacing the film is greatly reduced, and a plurality of irradiation terminals can simultaneously irradiate the film at the same time, thereby greatly improving the irradiation efficiency of the film and improving the production efficiency of the nuclear pore membrane. 2. The invention selects the high charge state heavy ion mode, can reduce the volume and weight of the particle accelerator and reduce the construction cost.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partial structural schematic diagram of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.
As shown in fig. 1 and 2, the heavy ion production apparatus for the industrial production of the nuclear pore membrane provided by the invention comprises an ion source, a LEBT beam line 1, a particle accelerator 2, a HEBT beam line 3 and a membrane irradiation terminal 4. The ion source is used for generating a heavy ion (such as argon ion or krypton ion) beam with a high charge state and primarily accelerating the heavy ion beam. The LEBT beam 1 is arranged between the outlet of the ion source and the inlet of the particle accelerator 2 and is used for analyzing the heavy ion beam current generated by the ion source, selecting heavy ions suitable for acceleration according to the requirements of different types of nuclear pore membranes, and then matching and transmitting the heavy ions to the particle accelerator 2. The particle accelerator 2 is arranged to subject the heavy ion beam to main acceleration and then to inject into the HEBT beam line 3. The HEBT beam 3 splits the injected heavy ion beam into a plurality of strands of heavy ion beams and then transmits the heavy ion beams to a plurality of film irradiation terminals 4 respectively, and the film irradiation terminals 4 lead out the heavy ion beams and irradiate the film placed in the atmospheric environment.
In the above example, preferably, the LEBT harness 1 includes, successively arranged: a first solenoid magnetic lens 11 for focusing or defocusing the extracted heavy ion beam; a bidirectional correction magnet 12 for adjusting the heavy ion beam current to a central position; an analyzing dipole magnet 13 for analyzing heavy ion species and selecting heavy ions suitable for acceleration; a first combined quadrupole magnet 14 for focusing or defocusing the selected heavy ion beam; a bidirectional deflection dipole magnet 15 for deflecting the direction of the heavy ion beam; a second combined quadrupole magnet 16 and a second solenoidal magnetic lens 17 for focusing or defocusing the heavy ion beam.
In the above example, preferably, the HEBT harness 3 includes, successively arranged: the beam splitting device 31 is arranged in sequence along the transmission direction of the HEBT beam line 3, and is used for splitting a heavy ion beam current led out by the particle accelerator 2 into a plurality of heavy ion beams; a deflection dipole magnet 32 for deflecting the direction of the heavy ion beam to be transmitted to the film irradiation terminal 4; a focusing quadrupole magnet 33 for focusing or defocusing the extracted heavy ion beam; a horizontal scanning magnet 34 and a vertical scanning magnet 35 for making the beam spot of the heavy ion beam uniform.
In the above example, preferably, the LEBT beam line 1 may be connected to several ion sources simultaneously, which may be operated alternately in very short time intervals, thereby improving the operating efficiency of the particle accelerator 2.
In the above examples, preferably, the ion source is a superconducting ion source and/or an ECR ion source.
In the above example, the ion source preferably produces heavy ions of high charge state with an average beam current intensity on the order of hundreds of microamps.
In the above example, preferably, the particle accelerator 2 can accelerate the heavy ion beam to a single nuclear energy of about 5MeV/u to 20MeV/u, so that the extracted heavy ions can pass through the vacuum membrane window of the membrane irradiation terminal 4 and have a sufficient penetration distance in the atmospheric environment.
In the above example, it is preferable that the particle accelerator 2 is a superconducting cyclotron.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A heavy ion production device for the industrial production of nuclear pore membranes is characterized by comprising an ion source, an LEBT beam line (1), a particle accelerator (2), an HEBT beam line (3) and a membrane irradiation terminal (4);
the ion source is used for generating heavy ion beams with high charge states and carrying out primary acceleration on the heavy ion beams;
the LEBT beam line (1) is arranged between an outlet of the ion source and an inlet of the particle accelerator (2) and is used for analyzing a heavy ion beam current generated by the ion source, selecting heavy ions suitable for acceleration according to requirements of different types of nuclear pore membranes, pre-accelerating the selected heavy ion beam current and then matching and transmitting the heavy ion beam current to the particle accelerator (2);
the particle accelerator (2) carries out main acceleration on the heavy ion beam again, and then injects the heavy ion beam into the HEBT beam line (3);
the HEBT beam line (3) splits the injected heavy ion beam into a plurality of strands of heavy ion beams and then transmits the heavy ion beams to a plurality of film irradiation terminals (4), and the film irradiation terminals (4) lead out the heavy ion beams and irradiate the film placed in the atmospheric environment.
2. A heavy ion production apparatus according to claim 1, wherein the LEBT beam line (1) comprises, in order:
a first solenoidal magnetic lens (11) for focusing or defocusing the extracted heavy ion beam;
a bidirectional correction magnet (12) for adjusting the heavy ion beam current to a central position;
an analyzing dipole magnet (13) for analyzing heavy ion species and selecting heavy ions suitable for acceleration;
a first combined quadrupole magnet (14) for focusing or defocusing a selected heavy ion beam current;
a bidirectional deflection dipole magnet (15) for deflecting the direction of the heavy ion beam;
a second combined quadrupole magnet (16) and a second solenoidal magnetic lens (17) for focusing or defocusing the heavy ion beam.
3. A heavy ion production apparatus according to claim 1, wherein the HEBT beam line (3) comprises, in order:
the beam splitting device (31), at least one beam splitting device (31) is sequentially arranged along the transmission direction of the HEBT beam line (3), and is used for splitting a heavy ion beam current led out by the particle accelerator (2) into a plurality of heavy ion beams;
a deflecting dipole magnet (32) for deflecting the direction of the heavy ion beam current for transmission to the film irradiation terminal (4);
a focusing quadrupole magnet (33) for focusing or defocusing the extracted heavy ion beam;
a horizontal scanning magnet (34) and a vertical scanning magnet (35) for making the beam spot of the heavy ion beam uniform.
4. The heavy ion production apparatus according to claim 1, wherein the LEBT beam line (1) is simultaneously connected to several of the ion sources, and several of the ion sources are operated alternately in very short time intervals.
5. The heavy ion production apparatus of claim 1, wherein the ion source is a superconducting ion source and/or an ECR ion source.
6. The heavy ion production apparatus of claim 1, wherein the ion source produces heavy ions of high charge state with an average beam current intensity on the order of hundreds of microamps.
7. The heavy ion production apparatus of claim 1, wherein the particle accelerator (2) is capable of accelerating a heavy ion beam to a single nuclear energy of about 5 to 20 MeV/u.
8. Heavy ion production plant according to claim 7, characterized in that said particle accelerator (2) is a superconducting cyclotron.
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| CN202010146079.4A CN111292866B (en) | 2020-03-05 | 2020-03-05 | Heavy ion production device for nuclear track membrane industrial production |
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| CN202010146079.4A CN111292866B (en) | 2020-03-05 | 2020-03-05 | Heavy ion production device for nuclear track membrane industrial production |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111651903A (en) * | 2020-07-07 | 2020-09-11 | 中国科学院近代物理研究所 | Particle accelerator engineering optimization method and system |
| CN111867227A (en) * | 2020-07-22 | 2020-10-30 | 中国科学院近代物理研究所 | Automatic beam spot calibrating and adjusting device for nuclear track membrane production terminal |
| CN112973458A (en) * | 2021-02-08 | 2021-06-18 | 中国科学院近代物理研究所 | Ion track porous membrane and physical preparation method and application thereof |
| CN113741375A (en) * | 2021-09-18 | 2021-12-03 | 中国科学院近代物理研究所 | Special production terminal control system for heavy ion microporous membrane |
| CN113808775A (en) * | 2021-09-18 | 2021-12-17 | 中国科学院近代物理研究所 | Heavy ion microporous membrane irradiation device of linear accelerator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111651903A (en) * | 2020-07-07 | 2020-09-11 | 中国科学院近代物理研究所 | Particle accelerator engineering optimization method and system |
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| CN112973458A (en) * | 2021-02-08 | 2021-06-18 | 中国科学院近代物理研究所 | Ion track porous membrane and physical preparation method and application thereof |
| CN112973458B (en) * | 2021-02-08 | 2022-12-27 | 中国科学院近代物理研究所 | Ion track porous membrane and physical preparation method and application thereof |
| CN113741375A (en) * | 2021-09-18 | 2021-12-03 | 中国科学院近代物理研究所 | Special production terminal control system for heavy ion microporous membrane |
| CN113808775A (en) * | 2021-09-18 | 2021-12-17 | 中国科学院近代物理研究所 | Heavy ion microporous membrane irradiation device of linear accelerator |
| CN113808775B (en) * | 2021-09-18 | 2023-09-19 | 中国科学院近代物理研究所 | Linear accelerator heavy ion microporous membrane irradiation device |
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