CN214750856U - Passive self-indicating device for radioactive source - Google Patents
Passive self-indicating device for radioactive source Download PDFInfo
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- CN214750856U CN214750856U CN202120399939.5U CN202120399939U CN214750856U CN 214750856 U CN214750856 U CN 214750856U CN 202120399939 U CN202120399939 U CN 202120399939U CN 214750856 U CN214750856 U CN 214750856U
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- passive self
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- 230000002285 radioactive effect Effects 0.000 title claims abstract description 66
- 230000005855 radiation Effects 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 28
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 claims description 21
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 13
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 12
- 239000011669 selenium Substances 0.000 claims description 12
- 229910052711 selenium Inorganic materials 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 12
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 8
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 claims description 7
- 235000009518 sodium iodide Nutrition 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 6
- 229910044991 metal oxide Inorganic materials 0.000 claims description 6
- 150000004706 metal oxides Chemical class 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- MCVAAHQLXUXWLC-UHFFFAOYSA-N [O-2].[O-2].[S-2].[Gd+3].[Gd+3] Chemical compound [O-2].[O-2].[S-2].[Gd+3].[Gd+3] MCVAAHQLXUXWLC-UHFFFAOYSA-N 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 5
- 239000005083 Zinc sulfide Substances 0.000 claims description 4
- 229910052797 bismuth Inorganic materials 0.000 claims description 4
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 4
- LVZNHIPCUNINSN-UHFFFAOYSA-N bromo hypobromite lanthanum Chemical compound [La].BrOBr LVZNHIPCUNINSN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052793 cadmium Inorganic materials 0.000 claims description 4
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 4
- UQMZPFKLYHOJDL-UHFFFAOYSA-N zinc;cadmium(2+);disulfide Chemical compound [S-2].[S-2].[Zn+2].[Cd+2] UQMZPFKLYHOJDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 3
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 3
- 238000003860 storage Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 12
- 230000003287 optical effect Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910004829 CaWO4 Inorganic materials 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000799 fluorescence microscopy Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 208000018989 iridogoniodysgenesis Diseases 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005424 photoluminescence Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Measurement Of Radiation (AREA)
Abstract
The utility model provides a radioactive source passive is from indicating device, including casing, shielding piece, detection piece, connecting piece and indicator, be equipped with in the casing and hold the chamber, it is used for acceping the radioactive source to hold the chamber, the shielding piece install in on the inner wall of casing, be used for to acceping hold the intracavity the radioactive source carries out airtight storage, the detection piece is installed one side of shielding piece, and with the radioactive source sets up relatively, the one end of connecting piece is passed the shielding piece and with the detection piece is connected, the other end of connecting piece with the indicator is connected. The detection piece is arranged in the accommodating cavity to detect the radioactive source accommodated in the accommodating cavity, and the detection result is transmitted to the indicating piece through the connecting piece, so that whether the radioactive source is moved out or lost can be found in time, and radiation accidents are effectively prevented.
Description
Technical Field
The utility model relates to a measuring device field, in particular to passive self-indicating device of radiation source.
Background
Currently, radioactive sources are widely used in the national production fields of industry, agriculture, medical treatment, scientific research, etc., and are increasing at a rate of about 15% per year, with the specific gravity in GDP also increasing. But while benefiting mankind, radiation accidents are easy to occur, resulting in significant loss of life, property and social benefits. IAEA database of Ionizing Radiation (IRID) data shows that 50% of radiation incidents are from industrial applications of radiation, and particularly radiation incidents are more likely to occur with moving radiation sources.
Except for equipment failure or design defects, the loss and the out-of-control of a radioactive source are mostly human errors, and because rays have the characteristics of colorlessness, tastelessness and the like, the rays are not easy to be perceived by people through professional equipment, radiation accidents often happen unconsciously, and the consequences are more serious after the radiation accidents happen for a longer time. According to the requirements of relevant regulations and standards of radioactive source management in China, a qualification detection mechanism is entrusted to regularly and frequently detect the performances of equipment containing radioactive isotopes, ray devices, radiation workplaces, radiation protection facilities and the like, but the supervision means cannot realize real-time dynamic monitoring on radioactive sources, and the radioactive sources are difficult to remove or lose in the first time.
Therefore, the indicating device capable of timely finding the moving-out or loss of the radioactive source is developed aiming at the safety and security of the radioactive source, the inherent safety of equipment is improved, and the indicating device is very effective for effectively preventing radiation accidents.
SUMMERY OF THE UTILITY MODEL
The main objective of the present invention is to solve at least one of the above problems, and to provide a passive self-indicating device for radioactive source.
In order to achieve the above object, the utility model provides a radioactive source passive is from indicating device, the radioactive source passive is from indicating device includes:
the radioactive source device comprises a shell, wherein a containing cavity is arranged in the shell and is used for containing a radioactive source;
the shielding piece is arranged on the inner wall of the shell and used for hermetically storing the radioactive source accommodated in the accommodating cavity;
the detection piece is arranged on one side of the shielding piece and is opposite to the radioactive source;
the shielding part is arranged on the outer side of the detection part, the detection part is arranged on the outer side of the detection part, and the connecting part is arranged on the indication part.
In an optional embodiment, the detecting member is an amorphous selenium flat panel detector, and the amorphous selenium flat panel detector includes:
the first connecting layer is arranged on one side of the shielding piece and is connected with one end, penetrating through the shielding piece, of the connecting piece;
and the amorphous selenium layer is arranged on one side of the first connecting layer and is opposite to the radioactive source.
In an alternative embodiment, the first connection layer is a thin film semiconductor array.
In an optional embodiment, the detecting member is an amorphous silicon flat panel detector, and the amorphous silicon flat panel detector includes:
the second connecting layer is arranged on one side of the shielding piece and is connected with one end, penetrating through the shielding piece, of the connecting piece;
the amorphous silicon layer is arranged on one side of the second connecting layer;
the first light-emitting layer is arranged on one side of the amorphous silicon layer and is opposite to the radioactive source.
In an optional embodiment, the first light emitting layer is a scintillator, and a material of the scintillator is at least one of cesium iodide, sodium iodide, bismuth germanate, calcium tungstate, and cadmium tungstate.
In an optional embodiment, the first light emitting layer is a phosphor, and the material of the phosphor is at least one of gadolinium oxysulfide, cadmium zinc sulfide, lanthanum oxybromide and zinc sulfide.
In an alternative embodiment, the second connection layer is one of a thin film semiconductor array, a charge coupled device, and a complementary metal oxide semiconductor.
In an optional embodiment, the detecting member is an amorphous silicon flat panel detector, and the amorphous silicon flat panel detector includes:
the third connecting layer is arranged on one side of the shielding piece and is connected with one end, penetrating through the shielding piece, of the connecting piece;
the light gathering piece is arranged on one side of the third connecting layer;
and the second light-emitting layer is arranged on one side of the light-gathering piece and is opposite to the radioactive source.
In an alternative embodiment, the light-gathering element is a lens or an optical fiber, and the third connection layer is a charge coupled device or a complementary metal oxide semiconductor.
In an alternative embodiment, the connecting member is a light guide, and the indicator is an LED lamp; or
The connecting piece is a wire, and the indicating piece is an alarm device.
The utility model provides a radioactive source passive is from indicating device, including casing, shielding piece, detection piece, connecting piece and indicator, be equipped with in the casing and hold the chamber, it is used for acceping the radioactive source to hold the chamber, the shielding piece install in on the inner wall of casing, be used for to acceping hold the intracavity the radioactive source carries out airtight storage, the detection piece is installed one side of shielding piece, and with the radioactive source sets up relatively, the one end of connecting piece is passed the shielding piece and with the detection piece is connected, the other end of connecting piece with the indicator is connected. That is, the utility model provides an among the technical scheme, through will the detection piece sets up hold the intracavity, in order to accept hold the intracavity the radiation source detects, and passes through the testing result the connecting piece transmits extremely indicator department to whether can in time discover the radiation source and shift out or lose, with the emergence that prevents the radiation accident effectively.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments or examples of the present invention, the drawings used in the embodiments or examples will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a passive self-indicating device of a radioactive source according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a detecting member according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a detecting member according to another embodiment of the present invention;
fig. 4 is a schematic structural view of a detecting member according to another embodiment of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a radioactive source passive self-indicating device.
In an embodiment, as shown in fig. 1, the radioactive source passive self-indicating device includes a housing 1, a shielding member 2, a detecting member 3, a connecting member 4 and an indicating member 5, a containing cavity 11 is provided in the housing 1, the containing cavity 11 is used for containing a radioactive source a, the shielding member 2 is installed on the inner wall of the housing 1 and is used for containing the radioactive source a in the containing cavity for airtight storage, the detecting member 3 is installed on one side of the shielding member 2 and is disposed opposite to the radioactive source a, one end of the connecting member 4 penetrates through the shielding member 2 and is connected to the detecting member 3, and the other end of the connecting member 4 is connected to the indicating member 5. That is, the utility model provides an among the technical scheme, through inciting somebody to action detection piece 3 sets up hold in 11, in order to right accept in hold in 11 the radiation source A detects, and passes through the testing result connecting piece 4 transmit extremely 5 departments of indicator to whether can in time discover the radiation source and shift out or lose, in order to prevent the emergence of radiation accident effectively.
Because the radioactive source a and the detecting element 3 are both disposed in the accommodating cavity 11, after the radiation generated by the radioactive source a interacts with the detecting element 3, an optical signal or an electrical signal is generated inside the detecting element 3, and the optical signal or the electrical signal can be transmitted to the indicating element 5 through the connecting element 4, at this time, the indicating element 5 can indicate whether the accommodating cavity 11 has the emission source a.
For example, when the connecting member 4 is a light guide and the indicator 5 is an LED lamp, the LED lamp is continuously turned on when the radioactive source a in the accommodating chamber 11 is normal, and the LED lamp is turned off when the radioactive source a in the accommodating chamber 11 is removed or lost.
Or, the connecting piece 4 is a lead, the indicating piece 5 is an alarm device, at this time, when the radioactive source A in the accommodating cavity 11 is normal, the alarm device does not give an alarm, and when the radioactive source A in the accommodating cavity 11 is moved out or lost, the alarm device starts to give an alarm. Wherein, the alarm device can be a sound production device such as a loudspeaker.
Further, the detecting element 3 utilizes fluorescence imaging technology to realize energy conversion, and can be divided into a direct conversion mode and an indirect conversion mode according to the conversion mode. Wherein, the ray photon is directly converted into the electric signal after the device adopted by the direct conversion mode is exposed by the ray; the indirect conversion device converts radiation photons into visible light and then converts the visible light into electrical signals.
Specifically, when detection piece 3 adopts the direct conversion mode, detection piece 3 is the dull and stereotyped detector of amorphous selenium, and it is shown to combine figure 2, the dull and stereotyped detector of amorphous selenium includes first articulamentum 31 and amorphous selenium layer 32, first articulamentum 31 is installed one side of shield 2, and with connecting piece 4 passes the one end of shield 2 is connected, amorphous selenium layer 32 is located one side of first articulamentum 31, and with radiation source A sets up relatively.
That is, the amorphous selenium layer 32 is a photoconductive material, after being irradiated by radiation, the amorphous selenium layer 32 directly forms an electron and hole pair, the electron and hole pair moves in opposite directions to form a current, and the current forms a stored charge in the first connection layer 31, that is, forms an electrical signal, and is transmitted to the indicator 5 through the connection member 4 connected to the first connection layer 31.
Alternatively, the first connection layer 31 is a Thin Film semiconductor array (TFT).
Specifically, when the detection piece 3 adopts an indirect conversion mode, the detection piece 3 is an amorphous silicon flat panel detector, as shown in fig. 3, the amorphous silicon flat panel detector includes a second connection layer 33, an amorphous silicon layer 34 and a first light-emitting layer 35, the second connection layer 33 is installed on one side of the shielding piece 2 and is connected with one end of the connecting piece 4 penetrating through the shielding piece 2, the amorphous silicon layer 34 is installed on one side of the second connection layer 33, and the first light-emitting layer 35 is installed on one side of the amorphous silicon layer 34 and is opposite to the radiation source a.
That is, the first light emitting layer 35 is exposed to radiation and converts radiation photons into visible light, thereby forming an optical signal, and the optical signal is transmitted to the indicator 5 through the connecting member 4 connected to the first connecting layer 31.
Optionally, the first light emitting layer 35 is a scintillator, and a material of the scintillator is at least one of cesium iodide, sodium iodide, bismuth germanate, calcium tungstate, and cadmium tungstate. When rays are incident to the scintillator, ray photon energy is converted into visible light photons to be emitted, and the visible light excites the photodiode to generate current.
The following table shows the main properties of the materials of the different scintillators:
| name (R) | Molecular formula | Density g/cm3 | Conversion efficiency% | Attenuation constant μ s | Afterglow (3 ms)% |
| Sodium iodide | NaI(Tl) | 3.67 | 100 | 0.23 | 0.5-5 |
| Cesium iodide | CsI(Tl) | 4.51 | 45 | 1.0 | 0.5-5 |
| Bismuth germanate | BGO | 7.13 | 8 | 0.3 | 0.005 |
| Calcium tungstate | CaWO4 | 6.12 | 50 | 0.-20 | 1-5 |
| Cadmium tungstate | CdWO4 | 7.9 | 65 | 0.5-20 | 0.0005 |
Wherein, the efficiency of converting X-ray into light by sodium iodide is about 15%, and the conversion rate of other materials gives relative conversion efficiency by taking the conversion efficiency of sodium iodide as 100%; the decay constant is the time it takes for the signal to decay to 37% of the maximum intensity.
In an exemplary technique, calcium tungstate, which is commonly used for X-ray detection, has the advantages of high absorption efficiency, stable physicochemical properties, and low requirements for raw material purity in preparation. The sulfide is also a material which is applied earlier, has stronger universality, and can be used for a perspective screen, an intensifying screen and an image intensifier.
The cesium iodide adopted in the embodiment has the same luminous efficiency as sulfide, but has higher absorption efficiency for rays than sulfide, so that under the excitation of gamma rays or X rays, the total efficiency is higher, but the luminous performance of the cesium iodide in the atmosphere and moisture is reduced, namely, the flat panel detector in the device is positioned in the accommodating cavity 11 to protect the cesium iodide, so that the problem of material performance reduction is avoided, and better absorption efficiency is realized.
Further, the first light emitting layer 35 may also be a phosphor, and the material of the phosphor is at least one of gadolinium oxysulfide, cadmium zinc sulfide, lanthanum oxybromide, and zinc sulfide.
The following table shows the main properties of the materials of the different phosphors:
| name (R) | Molecular formula | Density g/cm3 | Peak emission wavelength μm | Decay constant ns |
| Cadmium zinc sulfide | ZnCdS(A g,N i) | 4.5 | 550 | 85 |
| Gadolinium oxysulfide | Gd2O2S(T b) | 7.3 | 544 | 480000 |
| Lanthanum oxybromide | LaboBr | - | 460 | - |
| Zinc sulfide | ZnS(A g,N i) | 4.1 | 450 | 60 |
Based on the above table, in the present embodiment, the material of the phosphor may be gadolinium oxysulfide.
Optionally, the second connection layer 33 is one of a thin film semiconductor array, a charge coupled device, and a complementary metal oxide semiconductor.
In other words, in this embodiment, the optical signal or the electrical signal generated by the interaction between the radiation and the fluorescent or scintillating substance is coupled and amplified to form an acoustic or optical signal for indication. The radioactive photoluminescence is a luminescence phenomenon caused by the bombardment of luminescent substances by high-energy gamma rays or X rays, and the principle is as follows: the radioactive photoluminescent material can produce the Compton effect under the irradiation of radiation and also produce the photoelectric effect, which can produce high-speed photoelectrons. The photoelectrons undergo inelastic collision and continue to generate a generation of electrons, and when the energy of the electrons is close to the energy required by luminescence transition, the luminescence center can be excited or ionized, and then the light is emitted, namely, one gamma ray or X-ray photon can initiate a plurality of luminescence photons.
Further, when the detecting element 3 is an amorphous silicon flat panel detector, the amorphous silicon flat panel detector may also be in another form, as shown in fig. 4, the amorphous silicon flat panel detector includes a third connection layer 36, and the third connection layer 36 is installed on one side of the shielding element 2 and connected to one end of the connecting element 4 penetrating through the shielding element 2; a light-gathering member 37, wherein the light-gathering member 37 is disposed on one side of the third connection layer 36; and a second luminescent layer 38, wherein the second luminescent layer 38 is disposed on one side of the light-gathering member 37 and is opposite to the radiation source a. The light-collecting element 37 is a lens or an optical fiber, the third connection layer 36 is a charge coupled device or a complementary metal oxide semiconductor, and the structure of the second light-emitting layer 38 is the same as that of the first light-emitting layer 35, which is not described herein again.
That is, the indicating device of the embodiment is designed in a passive manner, does not need an external power supply, solidifies the radioactive source A in the accommodating cavity 11, and indicates whether the radioactive source A is in the accommodating cavity 11 by utilizing the action of ray energy and special substances to generate optical signals or electric signals, so that the radioactive source A is visible or audible, the application is convenient, the integration process is relatively simple, and the real-time continuous monitoring of the radioactive source A is realized; and the method can be integrated in various source containers, has wide application prospect and is a basic application research.
The utility model provides an among the technical scheme, the radioactive source passive is from indicating device includes casing 1, shield 2, test piece 3, connecting piece 4 and indicator 5, be equipped with in the casing 1 and hold chamber 11, it is used for acceping radiation source A to hold chamber 11, shield 2 install in on the inner wall of casing 1, be used for to acceping hold the intracavity the radiation source carries out airtight storage, test piece 3 is installed one side of shield 2, and with radiation source A sets up relatively, the one end of connecting piece 4 is passed shield 2 and with test piece 3 connects, the other end of connecting piece 4 with indicator 5 connects. That is, the detection piece 3 is arranged in the accommodating cavity 11 to detect the radioactive source A accommodated in the accommodating cavity 11, and the detection result is transmitted to the indicating piece 5 through the connecting piece 3, so that whether the radioactive source is moved out or lost can be found in time, and radiation accidents can be effectively prevented.
The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the concepts of the present invention utilize the equivalent transformation made by the contents of the specification and the drawings, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A radioactive source passive self-indicating device is characterized by comprising:
the radioactive source device comprises a shell, wherein a containing cavity is arranged in the shell and is used for containing a radioactive source;
the shielding piece is arranged on the inner wall of the shell and used for hermetically storing the radioactive source accommodated in the accommodating cavity;
the detection piece is arranged on one side of the shielding piece and is opposite to the radioactive source;
the shielding part is arranged on the outer side of the detection part, the detection part is arranged on the outer side of the detection part, and the connecting part is arranged on the indication part.
2. The passive self-indicating device of radioactive source of claim 1, wherein the detecting member is an amorphous selenium flat panel detector, the amorphous selenium flat panel detector comprising:
the first connecting layer is arranged on one side of the shielding piece and is connected with one end, penetrating through the shielding piece, of the connecting piece;
and the amorphous selenium layer is arranged on one side of the first connecting layer and is opposite to the radioactive source.
3. The radioactive source passive self-indicating device of claim 2, wherein the first connection layer is a thin film semiconductor array.
4. The passive self-indicating device of a radiation source of claim 1, wherein the detection member is an amorphous silicon flat panel detector, the amorphous silicon flat panel detector comprising:
the second connecting layer is arranged on one side of the shielding piece and is connected with one end, penetrating through the shielding piece, of the connecting piece;
the amorphous silicon layer is arranged on one side of the second connecting layer;
the first light-emitting layer is arranged on one side of the amorphous silicon layer and is opposite to the radioactive source.
5. The passive self-indicating device with a radioactive source according to claim 4, wherein the first light emitting layer is a scintillator, and the material of the scintillator is at least one of cesium iodide, sodium iodide, bismuth germanate, calcium tungstate and cadmium tungstate.
6. The radioactive source passive self-indicating device according to claim 4, wherein the first luminescent layer is a phosphor made of at least one of gadolinium oxysulfide, cadmium zinc sulfide, lanthanum oxybromide, and zinc sulfide.
7. The radioactive source passive self-indicating device according to claim 4, wherein the second connection layer is one of a thin film semiconductor array, a charge coupled device, and a complementary metal oxide semiconductor.
8. The passive self-indicating device of a radiation source of claim 1, wherein the detection member is an amorphous silicon flat panel detector, the amorphous silicon flat panel detector comprising:
the third connecting layer is arranged on one side of the shielding piece and is connected with one end, penetrating through the shielding piece, of the connecting piece;
the light gathering piece is arranged on one side of the third connecting layer;
and the second light-emitting layer is arranged on one side of the light-gathering piece and is opposite to the radioactive source.
9. The radioactive source passive self-indicating device according to claim 8, wherein the light gathering member is a lens or an optical fiber, and the third connection layer is a charge coupled device or a complementary metal oxide semiconductor.
10. The radioactive source passive self-indicating device according to claim 2, 4 or 8, wherein the connecting member is a light guide and the indicating member is an LED lamp; or
The connecting piece is a wire, and the indicating piece is an alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120399939.5U CN214750856U (en) | 2021-02-23 | 2021-02-23 | Passive self-indicating device for radioactive source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120399939.5U CN214750856U (en) | 2021-02-23 | 2021-02-23 | Passive self-indicating device for radioactive source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214750856U true CN214750856U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120399939.5U Expired - Fee Related CN214750856U (en) | 2021-02-23 | 2021-02-23 | Passive self-indicating device for radioactive source |
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| Country | Link |
|---|---|
| CN (1) | CN214750856U (en) |
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2021
- 2021-02-23 CN CN202120399939.5U patent/CN214750856U/en not_active Expired - Fee Related
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