CN114361009B - Magnetic confinement type long-service-life isotope light source - Google Patents
Magnetic confinement type long-service-life isotope light source Download PDFInfo
- Publication number
- CN114361009B CN114361009B CN202111462423.1A CN202111462423A CN114361009B CN 114361009 B CN114361009 B CN 114361009B CN 202111462423 A CN202111462423 A CN 202111462423A CN 114361009 B CN114361009 B CN 114361009B
- Authority
- CN
- China
- Prior art keywords
- metal thin
- light source
- thin tube
- packaging shell
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 44
- 230000005855 radiation Effects 0.000 claims abstract description 33
- 239000002243 precursor Substances 0.000 claims abstract description 29
- 238000004806 packaging method and process Methods 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000005388 borosilicate glass Substances 0.000 claims description 3
- 238000003856 thermoforming Methods 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 30
- 230000001681 protective effect Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 229910052722 tritium Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- CFOAUMXQOCBWNJ-UHFFFAOYSA-N [B].[Si] Chemical compound [B].[Si] CFOAUMXQOCBWNJ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- X-Ray Techniques (AREA)
- Particle Accelerators (AREA)
Abstract
The invention relates to a magnetic confinement type long-life isotope light source, which belongs to the technical field of isotope light sources, and comprises a packaging shell, wherein the packaging shell is of a full-sealed structure, and precursor gas is filled in the packaging shell; a metal thin Guan Zhiyu within the enclosure, the metal Bao Guanna filled with a radiation source; permanent magnets are respectively arranged on the two outer end surfaces of the metal thin tube, and beta particles emitted by the radiation source do spiral movement under the action of Lorentz force of a magnetic field generated by the permanent magnets, so that the movement path of the beta particles in the precursor gas is increased. The invention can greatly improve the light output power of the isotope light source, can stably work for a long time and expands the application field of the isotope light source.
Description
Technical Field
The invention belongs to the technical field of isotope light sources, and particularly relates to a magnetic confinement type long-service-life isotope light source.
Background
The isotope light source is a self-excitation light source without external energy, the principle is that beta particles emitted by radioactive isotopes are utilized to excite fluorescent substances to emit light, the isotope light source can be used as a good night display device, and isotope light source marks are arranged in various civil air defense works, underground shelters and other places, weak display illumination can be provided for a long time without maintenance, and the isotope light source is suitable for areas which are unattended or difficult to electrify for a long time.
The conventional existing isotope light source type structure is a luminous body formed by coating fluorescent powder coating on the inner wall of a glass tube, then filling radioactive tritium gas, and then sealing the glass tube; or polymerizing the radioactive tritium and the fluorescent powder to obtain the permanent luminescent powder. However, the mode has the core problem of low isotope loading activity in unit volume, and is more difficult to realize the loading of gaseous tritium exceeding 0.1MPa, which means that enough radiant energy is not input, and further enough light energy cannot be converted to meet the use requirement, so that the radiance of the existing isotope light source is low, and the application of the isotope light source is limited.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide the magnetically-constrained long-service-life isotope light source, which can greatly improve the light output power of the isotope light source, can stably work for a long time and expands the application field of the isotope light source.
In order to achieve the above purpose, the invention adopts a technical scheme that:
The magnetically-constrained long-life isotope light source comprises an encapsulation shell, wherein the encapsulation shell is of a fully-sealed structure, and precursor gas is filled in the encapsulation shell; a metal thin Guan Zhiyu within the enclosure, the metal Bao Guanna filled with a radiation source; permanent magnets are respectively arranged on the two outer end surfaces of the metal thin tube, and beta particles emitted by the radiation source do spiral movement under the action of Lorentz force of a magnetic field generated by the permanent magnets, so that the movement path of the beta particles in the precursor gas is increased.
Further, as described above, the package housing has a hollow cylindrical shape, and two inner end surfaces are provided with positioning holes; the packaging shell is made of high-transmittance radiation-resistant high borosilicate glass through thermoforming.
Further, as the magnetically confinement type long-life isotope light source described above, the precursor gas is a single rare gas, the kind of which includes Ar gas, kr gas, or Xe gas, or a mixed gas, the kind of which includes Ar/NF 3、Kr/NF3 or Xe/NF 3.
Further, as described above, the type of the radiation source comprises 3 H or 85 Kr gas source, and the half-life period is more than ten years.
Further, as described above, the first end of the metal thin tube is sealed and connected with the positioning column; the second end is provided with a loading port for loading the radiation source, and the front end of the loading port is connected with a welding sealing cover.
Further, as the magnetically-confined long-life isotope light source, the material of the metal thin tube is titanium, and the tube wall thickness of the metal thin tube is determined according to the loading capacity, the range and the mechanical strength of the radiation source.
Furthermore, as described above, the welding sealing cover and the front end of the positioning column are respectively provided with a protective end cover, the protective end covers are placed in the positioning holes at two ends of the packaging shell, and the permanent magnet, the metal thin tube and the packaging shell are fastened and connected through the protective end covers.
Further, as described above, the material of the permanent magnet is an alloy permanent magnet material, the middle of the permanent magnet is provided with a hole, and the aperture is matched with the outer diameter of the loading port.
Further, as described above, the magnetic field strength of the permanent magnet is determined according to the kind of the radiation source.
Further, as for the magnetically-confined long-life isotope light source, the surface of the permanent magnet, which is close to the end face of the metal thin tube, is plated with the aluminum reflecting layer, and the thickness of the aluminum reflecting layer is less than or equal to 0.1 mu m, so that the energy loss is reduced, and the light output power is improved.
The magnetically-constrained long-life isotope light source has the following remarkable technical effects:
Beta particles emitted by the radiation source are emitted to the periphery of the metal thin tube through the tube wall of the metal thin tube, energy is dissipated in precursor gas around the metal thin tube, and the precursor gas can effectively generate photons after absorbing the beta energy, so that the metal thin tube can stably work for a long time without maintenance; meanwhile, beta particles emitted by the radiation source do spiral motion under the action of Lorentz force of a magnetic field generated by the permanent magnets at two ends, so that the motion path of the beta particles in the precursor gas can be increased, the collision probability with precursor gas molecules is improved, the light output power of the isotope light source can be greatly improved, and the application field of the isotope light source is expanded.
Drawings
FIG. 1 is a schematic diagram of a magnetically confined long life isotope light source provided in an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the radiation source and the thin metal tube in FIG. 1;
FIG. 3 is a schematic illustration of the assembly of the permanent magnet and the thin metal tube of FIG. 1;
FIG. 4 is a schematic view of the package housing of FIG. 1;
In the figure, a 1-package housing; 2-precursor gas; 3-permanent magnets; a 4-reflective layer; a 5-radiation source; 6-a metal thin tube; 7-load port; 8-protecting the end cover; 9-welding a sealing cover; 10-positioning the column body.
Detailed Description
The invention will be further described with reference to specific examples and figures of the specification.
Fig. 1 is a schematic structural view of a magnetically confined long-life isotope light source provided in an embodiment of the present invention, and referring to fig. 1, the light source includes a package housing 1, wherein the package housing 1 is a fully sealed structure, and precursor gas 2 is filled in the package housing 1; the metal thin tube 6 is arranged in the packaging shell 1 and is a hollow metal tube, and the metal thin tube 6 is filled with a radiation source 5; the permanent magnets 3 are arranged on two outer end surfaces of the metal thin tube 6 in the packaging shell 1. Beta particles emitted by the radiation source 5 are emitted to the periphery of the metal thin tube 6 through the tube wall, energy is dissipated in the precursor gas 2 around the metal thin tube, and the precursor gas 2 can effectively generate photons after absorbing the beta energy, so that the metal thin tube can stably work for a long time without maintenance; meanwhile, beta particles emitted by the radiation source 5 do spiral motion under the action of the Lorentz force of the magnetic field generated by the permanent magnets 3 at the two ends, so that the motion path of the beta particles in the precursor gas 2 can be increased, the collision probability with precursor gas molecules is improved, and the purpose of improving the radiation conversion efficiency is achieved.
The packaging shell 1 is made of high-transmittance irradiation-resistant high-borosilicate glass through thermoforming, and is hollow and provided with positioning holes on two inner end surfaces. In this embodiment, the package housing 1 has an outer diameter of 9mm, an inner diameter of 8mm, an inner length of 22mm, and a positioning hole size Φ2mm×2.5mm. The content of SiO 2 in the high boron silicon material component is 80.7%, and the content of B 2O3 is 12.8%.
The precursor gas 2 may be a rare gas such as Ar gas, kr gas, or Xe gas, or a mixed gas such as Ar/NF 3、Kr/NF3 or Xe/NF 3. The precursor gas 2 has stable performance, good uniformity and less performance attenuation. Different precursor gases have different excitation energy and emission wavelength, and different precursor gases can be selected according to actual needs. In this embodiment, the precursor gas 2 is Xe gas, and the pressure of the precursor gas 2 filled into the package case 1 ranges from 0.08MPa to 0.10MPa.
The radiation source 5 comprises 3 H or 85 Kr gas source, the half life period is more than ten years, and different radiation sources are selected according to actual needs. In this embodiment 85 Kr is used as the radiation source 5 and the pressure of the radiation source 5 filled in the thin metal tube 6 is in the range of 0.1MPa to 0.2MPa.
The metal thin tube 6 is made of titanium, and one end of the metal thin tube is a sealed end which is connected with the positioning column body 10; the other end is provided with a loading port 7 which is used as an inlet and an outlet of the loading radiation source 5, and the front end of the loading port 7 is connected with a welding sealing cover 9.
The thickness of the wall of the thin metal tube 6 is determined by the radiation source loading, range and mechanical strength, which has the advantage of allowing a large load of 3 H or 85 Kr, even 3 H or 85 Kr exceeding 0.1MPa, to be loaded in the titanium tube, and cold-welded sealing can be used without worrying about leakage problems caused by the breakage of the conventional glass tube.
The permanent magnet 3 is made of alloy permanent magnet material, such as neodymium iron boron permanent magnet, and is provided with a hole in the middle, and the hole diameter of the hole is matched with the outer diameter of the loading port 7 of the metal thin tube 6. The collision probability of beta particles and precursor gas molecules can be improved through the permanent magnet 3, and meanwhile, the external radiation shielding can be reduced through the limitation of beta electrons. The magnetic field strength of the permanent magnet 3 is determined according to the type of the radiation source 5, in this embodiment the magnetic field strength of the permanent magnet 3 is 0.2T.
The surface of the permanent magnet 3, which is close to the end face of the metal thin tube 6, is plated with an aluminum reflecting layer 4, the thickness of which is less than or equal to 0.1 mu m, so that unnecessary energy loss is reduced, and the light output power is improved.
The front ends of the welding sealing cover 9 and the positioning cylinder 10 are respectively provided with a protective end cover 8, and the permanent magnet 3 is fixedly connected with the metal thin tube 6 through the protective end covers 8; meanwhile, the protecting end covers 8 are positioned in the positioning holes at two ends of the packaging shell 1, and the metal thin tube 6 is fastened with the packaging shell 1 through the positioning function of the protecting end covers 8.
The output photon energy of the magnetically-constrained long-life isotope light source provided by the embodiment is 7.21eV, and the main peak wavelength is 172nm.
According to the magnetic confinement type long-life isotope light source and the preparation method thereof, beta particles emitted by the radiation source are emitted to the periphery of the metal thin tube through the tube wall of the metal thin tube, energy is dissipated in precursor gas around the metal thin tube, and the precursor gas can effectively generate photons after absorbing the beta energy, so that stable work can be realized for a long time without maintenance; meanwhile, beta particles emitted by the radiation source do spiral motion under the action of Lorentz force of a magnetic field generated by the permanent magnets at two ends, so that the motion path of the beta particles in the precursor gas can be increased, the collision probability with precursor gas molecules is improved, the light output power of the isotope light source can be greatly improved, and the application field of the isotope light source is expanded.
The above-described embodiments are merely illustrative of the present invention, which may be embodied in other specific forms or with other specific forms without departing from the spirit or essential characteristics thereof. The described embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention should be indicated by the appended claims, and any changes that are equivalent to the intent and scope of the claims are intended to be encompassed within the scope of the invention.
Claims (4)
1. The magnetically-constrained long-life isotope light source is characterized by comprising a packaging shell (1), wherein the packaging shell (1) is of a fully-sealed structure, a precursor gas (2) is filled in the packaging shell, the precursor gas (2) is single rare gas or mixed gas, the single rare gas comprises Ar gas, kr gas or Xe gas, and the mixed gas comprises Ar/NF 3、Kr/NF3 or Xe/NF 3; the metal thin tube (6) is arranged in the packaging shell (1), the metal thin tube (6) is filled with the radiation source (5), the types of the radiation source (5) comprise 3 H or 85 Kr gas sources, and the half-life period is more than ten years; permanent magnets (3) are respectively arranged on two outer end surfaces of the metal thin tube (6), and beta particles emitted by the radiation source (5) do spiral movement under the action of the Lorentz force of a magnetic field generated by the permanent magnets (3), so that the movement path of the beta particles in the precursor gas (2) is increased; the surface of the permanent magnet (3) close to the end face of the metal thin tube (6) is plated with an aluminum reflecting layer (4) for reducing energy loss and improving light output power;
The outer shape of the packaging shell (1) is a hollow cylinder, and positioning holes are formed in two inner end surfaces; the packaging shell (1) is manufactured by adopting high-transmittance and radiation-resistant high-borosilicate glass through thermoforming;
The first end of the metal thin tube (6) is sealed and connected with a positioning column body (10); the second end is provided with a loading port (7) for loading the radiation source (5), and the front end of the loading port (7) is connected with a welding sealing cover (9); the material of the metal thin tube (6) is titanium, and the tube wall thickness of the metal thin tube (6) is determined according to the loading capacity, the range and the mechanical strength of the radiation source (5);
The welding sealing cover (9) and the front end of the positioning column body (10) are respectively provided with a protection end cover (8), the protection end covers (8) are arranged in positioning holes at two ends of the packaging shell (1), and the permanent magnet (3) and the metal thin tube (6) are tightly connected with the packaging shell (1) through the protection end covers (8).
2. The magnetically-constrained long-life isotope light source of claim 1, wherein the permanent magnet (3) is made of an alloy permanent magnet material, the middle of the permanent magnet (3) is provided with a hole, and the hole diameter is matched with the outer diameter of the loading port (7).
3. The magnetically-constrained long-life isotope light source of claim 1, wherein the magnetic field strength of the permanent magnet (3) is determined according to the kind of the radiation source (5).
4. A magnetically-confined long-life isotope light source according to any of claims 1-3, characterized in that the thickness of the aluminium reflective layer (4) is less than or equal to 0.1 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111462423.1A CN114361009B (en) | 2021-12-02 | 2021-12-02 | Magnetic confinement type long-service-life isotope light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111462423.1A CN114361009B (en) | 2021-12-02 | 2021-12-02 | Magnetic confinement type long-service-life isotope light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114361009A CN114361009A (en) | 2022-04-15 |
| CN114361009B true CN114361009B (en) | 2024-05-14 |
Family
ID=81097150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111462423.1A Active CN114361009B (en) | 2021-12-02 | 2021-12-02 | Magnetic confinement type long-service-life isotope light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114361009B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1271498A (en) * | 1960-04-20 | 1961-09-15 | Lenze Kg | Light source |
| US4247800A (en) * | 1979-02-02 | 1981-01-27 | Gte Laboratories Incorporated | Radioactive starting aids for electrodeless light sources |
| CN102237252A (en) * | 2010-04-23 | 2011-11-09 | 海洋王照明科技股份有限公司 | Field emission lamp tube |
| DE102011122857A1 (en) * | 2011-12-20 | 2013-06-20 | Max Mahn | Magnetic field tritium gas discharge tube for effective production of electrical energy to produce light, has cathode on heating wire side and anode on opposite side, which generates electric field that accelerates electrons towards anode |
| CN111341628A (en) * | 2020-03-06 | 2020-06-26 | 王松 | Manufacturing process of tritium light-emitting tube |
| CN112053931A (en) * | 2019-06-05 | 2020-12-08 | 劲亮嘉科技有限公司 | Electrodeless plasma lamp, lamp apparatus and restriction member for electrodeless plasma lamp |
-
2021
- 2021-12-02 CN CN202111462423.1A patent/CN114361009B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1271498A (en) * | 1960-04-20 | 1961-09-15 | Lenze Kg | Light source |
| US4247800A (en) * | 1979-02-02 | 1981-01-27 | Gte Laboratories Incorporated | Radioactive starting aids for electrodeless light sources |
| CN102237252A (en) * | 2010-04-23 | 2011-11-09 | 海洋王照明科技股份有限公司 | Field emission lamp tube |
| DE102011122857A1 (en) * | 2011-12-20 | 2013-06-20 | Max Mahn | Magnetic field tritium gas discharge tube for effective production of electrical energy to produce light, has cathode on heating wire side and anode on opposite side, which generates electric field that accelerates electrons towards anode |
| CN112053931A (en) * | 2019-06-05 | 2020-12-08 | 劲亮嘉科技有限公司 | Electrodeless plasma lamp, lamp apparatus and restriction member for electrodeless plasma lamp |
| CN111341628A (en) * | 2020-03-06 | 2020-06-26 | 王松 | Manufacturing process of tritium light-emitting tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114361009A (en) | 2022-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180226165A1 (en) | Methods and devices for beta radioisotope energy conversion | |
| US5443657A (en) | Power source using a photovoltaic array and self-luminous microspheres | |
| US20080226010A1 (en) | Reactor For Producing Controlled Nuclear Fusion | |
| CN107123457B (en) | A kind of direct collection-photoelectricity-thermoelectricity combined type isotope battery and preparation method | |
| CN114361009B (en) | Magnetic confinement type long-service-life isotope light source | |
| US20080001497A1 (en) | Direct conversion of alpha/beta nuclear emissions into electromagnetic energy | |
| CN106597521A (en) | Fast neutron detector resisting interference of strong gamma rays and application method thereof | |
| US20170025190A1 (en) | Spherical fusion reactor with aerogel material | |
| CN105869695B (en) | Radioisotope battery based on gaseous state radioactive source | |
| US3566125A (en) | Radiation excited light source | |
| CN204440917U (en) | A kind of isotope battery | |
| JP6653650B2 (en) | Reactor | |
| CN108877981A (en) | A kind of tritium fluorescence isotope battery | |
| CN204558041U (en) | A kind of thermonuclear electric cell | |
| CN104795120A (en) | Thermonuclear cell | |
| EP1770715A1 (en) | Micro plasma reactor | |
| US2981857A (en) | Counting tube | |
| TWI758921B (en) | Neutron generating method and neutron generator | |
| CN116779205A (en) | Isotope battery | |
| US10930408B2 (en) | Triboluminescence isotope battery | |
| CN201185181Y (en) | High-luminous-efficiency spherical electrodeless fluorescent lamp | |
| CN212182266U (en) | Pulse X-ray tube | |
| JPH03101044A (en) | Metal halide lamp | |
| US4926435A (en) | Radioactive light sources | |
| CN105321590A (en) | Nuclear battery of magnetic separation ionized gas charges |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |