CN113126139A - Packaging structure and detection device of scintillation crystal - Google Patents
Packaging structure and detection device of scintillation crystal Download PDFInfo
- Publication number
- CN113126139A CN113126139A CN201911414840.1A CN201911414840A CN113126139A CN 113126139 A CN113126139 A CN 113126139A CN 201911414840 A CN201911414840 A CN 201911414840A CN 113126139 A CN113126139 A CN 113126139A
- Authority
- CN
- China
- Prior art keywords
- scintillation crystal
- glass
- end cover
- window
- crystal
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention discloses a packaging structure of a scintillation crystal, which comprises: a housing and a glazing; the shell comprises a cylinder body, a first end cover and a second end cover, one end of the cylinder body is hermetically connected with the first end cover, the other end of the cylinder body is hermetically connected with the second end cover, the cylinder body, the first end cover and the second end cover form a closed shell, and the shell is used for coating the scintillation crystal to isolate the scintillation crystal from air; a glass window is disposed on a side of the housing for transmitting light generated by the scintillation crystal. The packaging structure has simple preparation process, and the scintillation crystal packaged by the structure has the advantages of difficult deliquescence and long service life. The invention also discloses a detection device which is provided with a packaging structure for coating the scintillation crystal. The packaging structure of the scintillation crystal of the detection device has the advantages of simple preparation process, difficult deliquescence and long service life.
Description
Technical Field
The invention relates to the technical field of manufacturing of detection equipment, in particular to a packaging structure of a scintillation crystal and a detection device.
Background
The scintillation crystal has the advantages of high detection efficiency, stable physical and chemical properties and the like, so the scintillation crystal is widely used for environment detection, radiation monitoring, petroleum exploration, medical treatment, security inspection, detection of molten steel liquid level in steel plants and the like. Sodium iodide crystals are popular with users due to their high light output and low cost, but researchers have been troubled by the problems of deliquescence and short service life of scintillation crystals. The Chinese patent application CN101905301A discloses a side window type scintillation crystal packaging structure for a molten steel liquid level detection device in a steel plant, the structure is complex in process, a wave spring arranged on the outer side of a glass window is easy to elastically deform in the using process, and air enters a metal shell through a gap and contacts with the scintillation crystal, so that the crystal is easy to deliquesce, and the service life is shortened.
Disclosure of Invention
Objects of the invention
The invention aims to provide a packaging structure of a scintillation crystal and a detection device so as to solve the problem of short service life of the scintillation crystal caused by air deliquescence.
(II) technical scheme
In order to solve the above problem, a first aspect of the present invention provides a package structure of a scintillation crystal, including: a housing and a glazing; the shell comprises a cylinder body, a first end cover and a second end cover, one end of the cylinder body is connected with the first end cover in a sealing mode, the other end of the cylinder body is connected with the second end cover in a sealing mode, the cylinder body, the first end cover and the second end cover form the closed shell, and the shell is used for coating scintillation crystals and isolating the scintillation crystals from air; the glass window is arranged on the side face of the shell and used for transmitting light generated by the scintillation crystal.
Further, the scintillation crystal is one of a sodium iodide crystal, a cesium iodide crystal, a BGO crystal, a plastic scintillator, a lanthanum bromide crystal, a cadmium tungstate crystal and a lutetium silicate crystal.
Further, the glass window is of a cylindrical structure; the scintillation crystal is connected with columnar structure's glass window one end, just the scintillation crystal with glass window contact department is the plane, is convenient for the light that the scintillation crystal produced spreads through the glass window.
Further, a transparent adhesive is filled between the scintillation crystal and the glass of the glass window in a potting mode and/or a transparent light guide sheet is arranged between the scintillation crystal and the glass of the glass window, and the transparent light guide sheet is used for coupling the scintillation crystal and the glass of the glass window into a whole and improving the light transmittance of the glass window.
Further, the transparent adhesive is one of silica gel, epoxy glue and UV glue; the transparent light guide sheet is made of silica gel, and the shape and the diameter of the transparent light guide sheet are consistent with the first end face of the glass on the glass window.
Further, a reflecting layer is covered outside the contact part of the scintillation crystal and the glass window.
Further, the material of the reflecting layer is one or a combination of magnesium oxide, aluminum oxide, titanium dioxide, polytetrafluoroethylene, tyvek paper and ESR.
Further, the shell also comprises a first pressure ring and a second pressure ring for fixing the crystal; the first pressing ring is in threaded connection with one end of the cylinder, and the second pressing ring is in threaded connection with the other end of the cylinder.
Further, the first pressing ring and the second pressing ring are any one of a metal plate, a metal ring and a clamp spring.
Further, the housing further comprises two seals; the first seal is disposed between the barrel and the first end cap; the second seal is disposed between the cartridge and the second end cap.
Furthermore, the glass window comprises a window frame connected with the cylinder and glass embedded in the window frame; the glass is cylindrical, and the diameters of two ends of the cylindrical glass are smaller than that of the middle part of the cylindrical glass; and a third sealing element is arranged between the glass and the window frame, the third sealing element is sleeved at one end of the glass close to the scintillation crystal, and the third sealing element is used for increasing the tightness between the glass and the window frame.
Further, the first sealing element, the second sealing element and the third sealing element are made of any one of a silica gel plate, a rubber mat and an eraser.
Further, the glass window further comprises a third pressure ring; the third clamping ring is in threaded connection with the window frame, the third clamping ring is sleeved at one end, away from the scintillation crystal, of the glass, and the third clamping ring is used for further increasing the tightness between the glass, the window frame and the third sealing element.
According to another aspect of the invention, a detection device is provided with a package structure of the scintillation crystal according to any one of the above aspects of the invention for covering the scintillation crystal.
(III) advantageous effects
The technical scheme of the invention has the following beneficial technical effects:
the packaging structure designed by the invention has simple preparation process, and the scintillation crystal packaged by the structure has the advantages of difficult deliquescence and long service life;
the packaging structure of the scintillation crystal of the detection device designed by the invention has a simple preparation process, and the scintillation crystal packaged by the structure has the advantages of difficult deliquescence and long service life.
Drawings
FIG. 1 is a schematic structural diagram of a package structure according to an alternative embodiment of the present invention;
figure 2 is a schematic view of the structure of a glazing according to an alternative embodiment of the invention.
Reference numerals:
1: a scintillation crystal; 2: a barrel; 3: a glass window; 4: transparent light guide sheet/transparent adhesive; 5: a reflective layer; 6: a first end face; 7: a second end face; 8: a first pressure ring/a second pressure ring; 9: first/second seal; 10: first/second end cap; 11: a third seal member; 12: a third pressure ring; 13: and (3) glass.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.
ESR is an abbreviation of Enhanced Specular Reflector in english, meaning an Enhanced Specular reflective sheet;
tyvek (Tyvek) is an excellent nonwoven product from dupont, and this Spunbonded Olefin (spun bonded Olefin) is made from high density polyethylene fibers, and it has balanced physical properties, thin thickness, light weight, non-deformable, soft, smooth, tough, tear-resistant, opaque, moisture-resistant, water-resistant, low surface friction, high elasticity, and combines the characteristics of paper, cloth and film.
In a first aspect of the embodiments of the present invention, there is provided a package structure of a scintillation crystal 1, including: the housing and glazing 3; the shell comprises a cylinder body 2, a first end cover 10 and a second end cover 10, one end of the cylinder body 2 is hermetically connected with the first end cover 10, the other end of the cylinder body 2 is hermetically connected with the second end cover 10, the cylinder body 2, the first end cover 10 and the second end cover 10 form a closed shell, and the shell is used for coating the scintillation crystal 1 to isolate the scintillation crystal 1 from air; the glass window 3 is arranged on the side of the housing for transmitting out the light generated by the scintillation crystal 1. The packaging structure has simple preparation process, and the scintillation crystal 1 packaged by the structure has the advantages of difficult deliquescence and long service life.
Optionally, the scintillation crystal 1 may be a novel scintillation crystal such as a lanthanum bromide crystal, a cadmium tungstate crystal, and a lutetium silicate crystal, in addition to a conventional scintillation crystal such as a sodium iodide crystal, a cesium iodide crystal, a BGO crystal, and a plastic scintillator, which are well known to those skilled in the art.
Optionally, the glass window 3 is a cylindrical structure; scintillation crystal 1 and columnar structure the 3 one ends of glass window are connected, just scintillation crystal 1 with the contact department of glass window 3 is the plane, is convenient for the light that scintillation crystal 1 produced spreads through glass window 3.
Optionally, a transparent adhesive 4 is encapsulated between the scintillation crystal 1 and the glass 13 of the glass window 3 and/or a transparent light guide sheet 4 is disposed between the scintillation crystal 1 and the glass 13 of the glass window 3, so as to couple the scintillation crystal 1 and the glass 13 of the glass window 3 into a whole, and improve the light transmittance of the glass window 3. The materials of the transparent adhesive 4 and the transparent light guide sheet 4, the size and the shape of the transparent light guide sheet 4 are matched with the scintillation crystal 1; wherein, adaptation means that the transparent adhesive does not react with the scintillation crystal 1, and the transparent light guide sheet is in accordance with the shape of the scintillation crystal 1.
Optionally, the transparent adhesive 4 may be one of silica gel, epoxy adhesive, and UV adhesive; the transparent light guide sheet 4 is made of silica gel, and the shape and the diameter of the transparent light guide sheet are basically consistent with the first end face 6 of the glass 13 on the glass window 3.
Optionally, a reflective layer 5 is covered outside the contact part of the scintillation crystal 1 and the glass window 3.
Optionally, the material of the reflective layer 5 is one or a combination of magnesium oxide, aluminum oxide, titanium dioxide, polytetrafluoroethylene, tyvek paper, and ESR.
Optionally, the housing further comprises a first compression ring 8 and a second compression ring 8 for fixing the crystal; the first pressing ring 8 is in threaded connection with one end of the cylinder body 2, and the second pressing ring 8 is in threaded connection with the other end of the cylinder body 2.
Optionally, the first pressing ring 8 and the second pressing ring 8 are any one of a metal plate, a metal ring and a snap spring.
Optionally, the housing further comprises two seals; a first seal 9 is provided between the cartridge 2 and the first end cap 10; a second seal 9 is provided between the cartridge 2 and the second end cap 10.
Optionally, the glass window 3 includes a window frame connected to the barrel 2 and a glass 13 embedded inside the window frame; the glass is cylindrical, and the diameters of two ends of the cylindrical glass 13 are smaller than that of the middle part of the cylindrical glass; a third sealing element 11 is arranged between the glass 13 and the window frame, the third sealing element 11 is sleeved at one end of the glass 13 close to the scintillation crystal 1, and the third sealing element 11 is used for increasing the tightness between the glass and the window frame.
Optionally, the first sealing element, the second sealing element and the third sealing element are made of any one of a silicone plate, a rubber mat and an eraser.
Optionally, the glass window 3 further comprises a third pressure ring 12; third clamping ring 12 with window frame threaded connection, and this third clamping ring 12 cover is established 1 one end of scintillation crystal is kept away from to glass 13, third clamping ring 12 is used for further increasing glass 13 the window frame reaches seal between the third sealing member 11.
In an alternative embodiment of the present invention, a package structure of a scintillation crystal 1 is provided, as shown in fig. 1, a cylindrical scintillation crystal 1 is placed in a cylindrical metal cylinder 2, and in this embodiment, the scintillation crystal 1 is a sodium iodide crystal, and the crystal has properties of gamma sensitivity, spectral resolution, and light output. A glass window 3 is arranged on the side surface of the metal cylinder 2, a transparent light guide sheet 4 or a potting transparent adhesive 4 is arranged between the scintillation crystal 1 and the glass 13 or the glass 13 of the glass window 3 as shown in fig. 2, and a reflecting layer 5 is added on the rest part of the scintillation crystal 1; the first 6 and second 7 end surfaces of the glass 13 are polished; an annular third seal 11 is mounted on the glazing 3 on one side of the first end face 6 of the glazing 13; a third press ring 12 is arranged on one side of the second end surface 7 of the glass 13 on the glass window 3 and is used for compressing a third sealing member 11; the upper end and the lower end of the scintillation crystal 1 are respectively provided with a first metal pressing ring 8/a second metal pressing ring 8, and the first metal pressing ring 8/the second metal pressing ring 8 are screwed with the metal cylinder 2 through threads and are used for fixing the scintillation crystal 1; a first sealing element 9 is arranged in the upper end first end cover 10; a second sealing element 9 is arranged in the lower end second end cover 10; the end cover 10 is screwed with the metal cylinder 2, and during screwing the end cover 10, the first sealing piece 9/the second sealing piece 9 are compressed, so that the end cover 10 is tightly matched with the shell 2, and air is prevented from entering the interior of the metal cylinder 2 and contacting the scintillation crystal 1; the end cap 10 is screwed and secured with an adhesive to ensure sealing. The packaging structure has simple preparation process, and the scintillation crystal 1 packaged by the structure has the advantages of difficult deliquescence and long service life.
In another aspect of an embodiment of the present invention, there is provided a detection apparatus provided with a package structure of the scintillator crystal 1 according to any one of the above-described embodiments that covers the scintillator crystal 1. The packaging structure of the scintillation crystal 1 of the detection device has a simple preparation process, and the scintillation crystal 1 packaged by the structure has the advantages of difficult deliquescence and long service life.
The present invention is directed to a package structure for a scintillation crystal 1, comprising: the housing and glazing 3; the shell comprises a cylinder body 2, a first end cover 10 and a second end cover 10, one end of the cylinder body 2 is hermetically connected with the first end cover 10, the other end of the cylinder body 2 is hermetically connected with the second end cover 10, the cylinder body 2, the first end cover 10 and the second end cover 10 form a closed shell, and the shell is used for coating the scintillation crystal 1 to isolate the scintillation crystal 1 from air; the glass window 3 is arranged on the side of the housing for transmitting out the light generated by the scintillation crystal 1. The packaging structure has simple preparation process, and the scintillation crystal 1 packaged by the structure has the advantages of difficult deliquescence and long service life. In another aspect of an embodiment of the present invention, there is provided a detection apparatus provided with a package structure of the scintillator crystal 1 according to any one of the above-described embodiments that covers the scintillator crystal 1. The packaging structure of the scintillation crystal 1 of the detection device has a simple preparation process, and the scintillation crystal 1 packaged by the structure has the advantages of difficult deliquescence and long service life.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. An encapsulation structure of a scintillation crystal (1), characterized in that it comprises: a housing and a glazing (3);
the shell comprises a cylinder body (2), a first end cover (10) and a second end cover (10), one end of the cylinder body (2) is connected with the first end cover (10) in a sealing mode, the other end of the cylinder body (2) is connected with the second end cover (10) in a sealing mode, the cylinder body (2), the first end cover (10) and the second end cover (10) form a closed shell, and the shell is used for covering the scintillation crystal (1) and enabling the scintillation crystal (1) to be isolated from air;
the glass window (3) is arranged on the side of the housing for transmitting light generated by the scintillation crystal (1).
2. The encapsulation structure according to claim 1, characterized in that the glazing (3) is a pillar-type structure;
scintillation crystal (1) and columnar structure glass window (3) one end is connected, just scintillation crystal (1) with glass window (3) contact department is the plane, is convenient for the light that scintillation crystal (1) produced spreads through glass window (3).
3. The encapsulation structure according to claim 1, characterized in that a transparent adhesive (4) is potted between the scintillation crystal (1) and the glass (13) of the glass window (3) and/or a transparent light guide sheet (4) is placed between the scintillation crystal (1) and the glass (13) of the glass window (3) for coupling the scintillation crystal (1) and the glass (13) of the glass window (3) into one piece, increasing the light transmittance of the glass window (3); the transparent adhesive (4) is one of silica gel, epoxy glue and UV glue; the transparent light guide sheet (4) is made of silica gel, and the shape and the diameter of the transparent light guide sheet are matched with the first end surface (6) of the glass (13) on the glass window (3).
4. The encapsulation structure according to claim 1, characterized in that a reflective layer (5) is covered outside the contact portion of the scintillation crystal (1) with the glazing (3).
5. The encapsulation structure according to claim 4, wherein the material of the reflective layer (5) is a combination of one or more of magnesium oxide, aluminum oxide, titanium dioxide, polytetrafluoroethylene, tyvek paper, ESR.
6. The encapsulation structure according to claim 1, characterized in that the enclosure further comprises a first clamping ring (8) and a second clamping ring (8) for fixing the crystal;
the first pressing ring (8) is in threaded connection with one end of the barrel (2), the second pressing ring (8) is in threaded connection with the other end of the barrel (2), and the pressing ring is any one of a metal plate, a metal ring and a clamp spring.
7. The packaging structure of claim 1, wherein the housing further comprises two seals; the sealing element is made of a silica gel plate, a rubber pad or an eraser;
a first seal (9) is arranged between the barrel (2) and the first end cap (10);
a second seal (9) is disposed between the barrel (2) and the second end cap (10).
8. The encapsulation structure according to claim 1, characterized in that the glazing (3) comprises a window frame connected to the cylinder (2) and a glass (13) embedded inside the window frame;
the glass is cylindrical, and the diameters of two ends of the cylindrical glass (13) are smaller than that of the middle part of the cylindrical glass;
a third sealing element (11) is arranged between the glass (13) and the window frame, the third sealing element (11) is sleeved at one end, close to the scintillation crystal (1), of the glass (13), and the third sealing element (11) is used for increasing the tightness between the glass (13) and the window frame.
9. The encapsulation structure according to claim 8, characterized in that the glazing (3) further comprises a third pressure ring (12);
third clamping ring (12) with window frame threaded connection, and this third clamping ring (12) cover is established scintillation crystal (1) one end is kept away from in glass (13), third clamping ring (12) are used for further increasing glass (13) the window frame reaches seal between third sealing member (11).
10. A detection device, characterized in that the detection device is provided with a package structure of a scintillation crystal (1) according to any one of claims 1 to 9 covering the scintillation crystal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911414840.1A CN113126139A (en) | 2019-12-31 | 2019-12-31 | Packaging structure and detection device of scintillation crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911414840.1A CN113126139A (en) | 2019-12-31 | 2019-12-31 | Packaging structure and detection device of scintillation crystal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113126139A true CN113126139A (en) | 2021-07-16 |
Family
ID=76770469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911414840.1A Pending CN113126139A (en) | 2019-12-31 | 2019-12-31 | Packaging structure and detection device of scintillation crystal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113126139A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873384A (en) * | 2005-07-13 | 2006-12-06 | 姜虹 | Unit for detecting liquor level of molten steel by using long crystal |
| WO2007051396A1 (en) * | 2005-11-04 | 2007-05-10 | Hong Jiang | A molten steel level measuring instrument with a long scintillator |
| US20100072398A1 (en) * | 2008-09-19 | 2010-03-25 | Saint-Gobain Ceramics & Plastics, Inc. | Method of forming a scintillator device |
| CN101905301A (en) * | 2010-07-26 | 2010-12-08 | 田志恒 | Molten steel liquid level detection device of crystallizer of continuous casting machine |
| US20150014544A1 (en) * | 2010-10-28 | 2015-01-15 | Schlumberger Technology Corporation | Integrated Coupling Of Scintillation Crystal With Photomultiplier In A Detector Apparatus |
| CN205958759U (en) * | 2016-06-17 | 2017-02-15 | 北京玻璃研究院 | Shock -resistant scintillating crystals detector of preventing moisture absorption |
| CN107390251A (en) * | 2017-07-13 | 2017-11-24 | 中国科学院福建物质结构研究所 | Scintillation crystal assembly, method for packing and the detector of anhydrous encapsulation |
-
2019
- 2019-12-31 CN CN201911414840.1A patent/CN113126139A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873384A (en) * | 2005-07-13 | 2006-12-06 | 姜虹 | Unit for detecting liquor level of molten steel by using long crystal |
| WO2007051396A1 (en) * | 2005-11-04 | 2007-05-10 | Hong Jiang | A molten steel level measuring instrument with a long scintillator |
| US20100072398A1 (en) * | 2008-09-19 | 2010-03-25 | Saint-Gobain Ceramics & Plastics, Inc. | Method of forming a scintillator device |
| CN101905301A (en) * | 2010-07-26 | 2010-12-08 | 田志恒 | Molten steel liquid level detection device of crystallizer of continuous casting machine |
| US20150014544A1 (en) * | 2010-10-28 | 2015-01-15 | Schlumberger Technology Corporation | Integrated Coupling Of Scintillation Crystal With Photomultiplier In A Detector Apparatus |
| CN205958759U (en) * | 2016-06-17 | 2017-02-15 | 北京玻璃研究院 | Shock -resistant scintillating crystals detector of preventing moisture absorption |
| CN107390251A (en) * | 2017-07-13 | 2017-11-24 | 中国科学院福建物质结构研究所 | Scintillation crystal assembly, method for packing and the detector of anhydrous encapsulation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6092568B2 (en) | Radiation detection apparatus and radiation detection system | |
| US4764677A (en) | Well logging detector | |
| US20100072398A1 (en) | Method of forming a scintillator device | |
| GB968188A (en) | Devices for measuring nuclear radiation energies | |
| US9581702B2 (en) | Moisture seal for radiological image sensor | |
| US2750514A (en) | Container for scintillation luminophor | |
| CN104319214B (en) | Packaging method of anti-vibration type photoelectric detector | |
| CN113126139A (en) | Packaging structure and detection device of scintillation crystal | |
| GB967811A (en) | Scintillation meter components | |
| EP3346294B1 (en) | Radiation detector assembly and method of making the same | |
| US4021670A (en) | Sealable high counting efficiency liquid scintillation vials | |
| CN107533143B (en) | Radiation detector or radiation tomography apparatus including radiation detector | |
| CN101905301A (en) | Molten steel liquid level detection device of crystallizer of continuous casting machine | |
| KR20040028565A (en) | Scintillation detector with gadolinium based sidewall axial restraint and compliance assembly | |
| CN211036182U (en) | High-temperature-resistant packaged lanthanum bromide crystal for well logging | |
| CN216696693U (en) | Radiation dose detection device suitable for being coupled with terminal | |
| TWI690942B (en) | Scintillator board and radiation detector | |
| CN112770033B (en) | Light collection system and optical lens | |
| JP5356999B2 (en) | Radiation detector | |
| CN205981437U (en) | Be used for dragging linear array vibration measuring optic fiber interference type accelerometer | |
| CN217425699U (en) | Moisture absorption scintillation crystal is singly passed through dampproofing packaging structure and radiation detection device | |
| CN210855369U (en) | Sterilization module and sterilization water tank using same | |
| CN201780142U (en) | Mold liquid steel level detection device for continuous casting machine | |
| CN219799282U (en) | Double-silk image quality meter | |
| JP3462871B2 (en) | Radiation detection optical transmission device |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210716 |
|
| RJ01 | Rejection of invention patent application after publication |