CN201392804Y - High-resolution X-ray image intensifier - Google Patents
High-resolution X-ray image intensifier Download PDFInfo
- Publication number
- CN201392804Y CN201392804Y CN200820233165U CN200820233165U CN201392804Y CN 201392804 Y CN201392804 Y CN 201392804Y CN 200820233165 U CN200820233165 U CN 200820233165U CN 200820233165 U CN200820233165 U CN 200820233165U CN 201392804 Y CN201392804 Y CN 201392804Y
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- ray image
- optical fiber
- fibre faceplate
- phosphor screen
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Abstract
The utility model relates to the technical field of the X-ray image, in particular to a high-resolution X-ray image intensifier with small size, low noise and high image quality, which comprises an input window, a CSI cathode, a micro channel plate component, an output window, a ceramic pipe shell, a tile type power supply, an ABS embedded shell and the like. The high-resolution X-ray image intensifier is characterized in that the luminescent screen of the output window consists of a luminescent screen powder layer, an optical fiber panel and an optical fiber cone. The internal connection surface of the optical fiber panel is provided with the luminescent screen powder layer, the external connection surface of the optical fiber panel is provided with the optical fiber cone, the input surface of the micro channel plate component is provided with the CSI cathode, and the CSI cathode and the optical fiber panel form vacuum seal. Compared with the traditional X-ray image intensifier, the utility model has the advantages of high resolution, high conversion efficiency, low noise, light weight, low radiation dose, high gain and wide scope of application, is related to the medical care, safety inspection, inspection of industrial products and other fields, and has high economic benefits and social benefits.
Description
Technical field:
The utility model relates to the X ray image technical field, and particularly a kind of volume is little, low noise, high-resolution X-ray image amplifier that picture quality is high.
Background technology:
As everyone knows, X ray detects as one of traditional detection method, is widely used in industrial nondestructive inspection field; The while brothers of hospital surgery, microsurgery, the traditional Chinese medical science is put in order the bone manipulative reduction, closure is threaded a needle, be widely used in the fields such as public security customs row bag inspection, the X ray booster is the important component part of X ray image device, the X ray booster comprises input window, output window, ceramic cartridge, tile type power supply and ABS embedding shell etc., the phosphor screen of existing output window is to be substrate with K4 glass, at the K4 phosphor screen bisque that scribbles on glass, because K4 glass transmitance is low, scattering is serious, the insensitive deficiency that waits, make the resolution of X ray booster only be 5LP/mm, only can satisfy simply medical, in recent years, along with x ray image intensifier uses widening of field, the higher instructions for use of the numerous and confused proposition of many industrial circles and medical field requires more high-resolution x ray image intensifier.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of phosphor screen of making on fibre faceplate, the x ray image intensifier that carries out the coupling of image with optical fiber.
A kind of high-resolution X-ray image amplifier comprises input window, output window, ceramic cartridge, tile type power supply and ABS embedding shell etc., and the phosphor screen that it is characterized in that output window is by C
SI negative electrode, microchannel plate assembly, phosphor screen bisque, fibre faceplate, the fine awl of optics are formed, and microchannel plate assembly input face is provided with C
SThe I negative electrode, the face that connects in the fibre faceplate is provided with the phosphor screen bisque, and external is provided with the fine awl of optics, C
SConstitute vacuum seal between I negative electrode and the fibre faceplate.
Phosphor screen described in the utility model observation place is the fine awl of optics, fine awl of optics and fibre faceplate gluing, and the fine awl of optics is tapered structure, and cement plane is identical with the fibre faceplate size, and total length is 30-50mm.
Described in the utility model connecing in fibre faceplate done phosphor powder layer on the face, material is a p20 fluorescent material, and its thickness is 0.05-0.1mm, and method is the centrifugal process precipitation.
C described in the utility model
SI negative electrode evaporation is on the input face of microchannel plate (MCP), and the material of evaporation is alkali halogen compound C
SI, its relative density is 90%-100%, and thickness is the evaporation layer of 0.02-0.05mm, and the microchannel plate of employing (MCP) is high-resolution MCP, and the passage aperture is 12 μ m.
The utility model advantage specific as follows:
1., replace K4 glass with fibre faceplate, fibre faceplate and special controlled expansion alloy (4J49) carry out sealing-in, on fibre faceplate, make phosphor screen, the electronics that emits from the output face of MCP, quicken through electric field, directly the phosphor screen of fibre faceplate is with in bombardment, and luminescence imaging makes luminous efficiency and conversion efficiency improve greatly like this.Also adopted nearly subsides electron focusing system in addition, and the ceramic and metal package structure, made that the volume of homogeneous tube is little, in light weight, gain is high, image resolution ratio is high, only needs less x-ray dose, can obtain fluoroscopy images clearly.
2., utilize the characteristic of the fine awl of optics, carry out the optical image coupling, obtain the optical imagery of very high resolution.Appliance computer carries out image acquisition, storage, processing, improves image quality greatly, and image acquisition is real-time, and picture is clear, and display size is convergent-divergent arbitrarily, the image demonstration of can arbitrarily reversing.
3. adopted the flat-panel type X-ray image intensifier of MCP, this image intensifier has adopted the X ray negative electrode of high quantum benefit, the MCP of high electron gain, the phosphor screen of high-luminous-efficiency, wherein the X ray cathode material adopts alkali halogen compound (as CsI), it is in the X ray scope of 40-100Kev, and thickness is 0.02-0.05mm, and relative density is greater than 90%.Adopt vapour deposition method directly to be plated on the input face of MCP, when the excitation of X-rays cathode material, produce in a large number once, secondary electron, directly enter the MCP passage, electronics doubles in the passage of MCP, and its gain can reach more than 10000 times.
In sum, the utility model is because the as above employing of innovative point, influencing booster with traditional X ray compares, have very high resolution, very high conversion efficiency, noise is low, in light weight, low radiation dose, high-gain, applied range, relate to a plurality of fields such as medical treatment, safety inspection, industrial goods detection, have high economic benefit and social benefit.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
As shown in drawings, a kind of x ray image intensifier, comprise input window, output window, ceramic cartridge, tile type power supply and ABS embedding shell etc., wherein input window, ceramic cartridge, tile type power supply and ABS embedding shell are same as the prior art, this does not give unnecessary details, and the phosphor screen of output window that is characterised in that of the present utility model is by C
SI negative electrode 1, microchannel plate assembly 2, phosphor screen bisque 3, fibre faceplate 4, the fine awl 5 of optics are formed, and microchannel plate assembly 2 input faces are provided with C
SI negative electrode 1, the face that connects in the fibre faceplate is provided with the phosphor screen bisque, and external is provided with the fine awl of optics, C
SConstitute vacuum seal between I negative electrode and the fibre faceplate, phosphor screen described in the utility model observation place is the fine awl 5 of optics, fine awl 5 of optics and fibre faceplate 4 gluings, and the fine awl 5 of optics is a tapered structure, cement plane 4 is identical with fibre faceplate 5 sizes, and total length is 30-50mm.
Described in the utility model connecing in fibre faceplate 4 done phosphor powder layer 3 on the face, phosphor powder layer 3 materials are p20 fluorescent material, and its thickness is 0.05-0.1mm, and method is the centrifugal process precipitation.
C described in the utility model
SI negative electrode 1 evaporation is on the input face of microchannel plate (MCP) 2, and the material of evaporation is alkali halogen compound C
SI, its relative density is 90%-100%, and thickness is the evaporation layer of 0.02-0.05mm, and the microchannel plate of employing (MCP) is high-resolution MCP, and the passage aperture is 12 μ m.
The utility model advantage specific as follows:
1., replace K4 glass with fibre faceplate, fibre faceplate and special controlled expansion alloy (4J49) carry out sealing-in, on fibre faceplate, make phosphor screen, the electronics that emits from the output face of MCP, quicken through electric field, directly the phosphor screen of fibre faceplate is with in bombardment, and luminescence imaging makes luminous efficiency and conversion efficiency improve greatly like this.Also adopted nearly subsides electron focusing system in addition, and the ceramic and metal package structure, made that the volume of homogeneous tube is little, in light weight, gain is high, image resolution ratio is high, only needs less x-ray dose, can obtain fluoroscopy images clearly.
2., utilize the characteristic of the fine awl of optics, carry out the optical image coupling, obtain the optical imagery of very high resolution.Appliance computer carries out image acquisition, storage, processing, improves image quality greatly, and image acquisition is real-time, and picture is clear, and display size is convergent-divergent arbitrarily, the image demonstration of can arbitrarily reversing.
3. adopted the flat-panel type X-ray image intensifier of MCP, this image intensifier has adopted the X ray negative electrode of high quantum benefit, the MCP of high electron gain, the phosphor screen of high-luminous-efficiency, wherein the X ray cathode material adopts alkali halogen compound (as CsI), it is in the X ray scope of 40-100Kev, and thickness is 0.02-0.05mm, and relative density is greater than 90%.Adopt vapour deposition method directly to be plated on the input face of MCP, when the excitation of X-rays cathode material, produce in a large number once, secondary electron, directly enter the MCP passage, electronics doubles in the passage of MCP, and its gain can reach more than 10000 times.
In sum, the utility model is because the as above employing of innovative point, influencing booster with traditional X ray compares, have very high resolution, very high conversion efficiency, noise is low, in light weight, low radiation dose, high-gain, applied range, relate to a plurality of fields such as medical treatment, safety inspection, industrial goods detection, have high economic benefit and social benefit.
Claims (4)
1, a kind of high-resolution X-ray image amplifier comprises input window, C
SI negative electrode, microchannel plate assembly, output window, ceramic cartridge, tile type power supply and ABS embedding shell etc., the phosphor screen that is characterised in that output window is made up of phosphor screen bisque, fibre faceplate, the fine awl of optics, the face that connects in the fibre faceplate is provided with the phosphor screen bisque, external is provided with the fine awl of optics, and microchannel plate assembly input face is provided with C
SThe I negative electrode, C
SConstitute vacuum seal between I negative electrode and the fibre faceplate.
2, a kind of high-resolution X-ray image amplifier according to claim 1 is characterized in that phosphor screen replaces traditional K4 glass with fibre faceplate, and it is 8-12mm that fibre faceplate adopts thickness.
3, a kind of high-resolution X-ray image amplifier according to claim 1, it is characterized in that fibre faceplate in connect and do phosphor powder layer on the face, material is a p20 fluorescent material.Its thickness is 0.05-0.1mm.
4, according to the described a kind of high-resolution X-ray image amplifier of claim, it is characterized in that C
SI negative electrode evaporation is on the input face of microchannel plate, and the material of evaporation is alkali halogen compound C
SI, its relative density is 90%-100%, thickness is the evaporation layer of 0.02-0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820233165U CN201392804Y (en) | 2008-12-26 | 2008-12-26 | High-resolution X-ray image intensifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820233165U CN201392804Y (en) | 2008-12-26 | 2008-12-26 | High-resolution X-ray image intensifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392804Y true CN201392804Y (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820233165U Expired - Fee Related CN201392804Y (en) | 2008-12-26 | 2008-12-26 | High-resolution X-ray image intensifier |
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| Country | Link |
|---|---|
| CN (1) | CN201392804Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952137A (en) * | 2020-08-14 | 2020-11-17 | 中国科学院工程热物理研究所 | Low-light-level image intensifier with high resolution and high gain multiple |
| CN112259438A (en) * | 2020-10-22 | 2021-01-22 | 中国建筑材料科学研究总院有限公司 | Input window and preparation method and application thereof |
| CN112863977A (en) * | 2021-01-14 | 2021-05-28 | 北方夜视技术股份有限公司 | High-resolution low-light-level image intensifier tube |
| CN112885679A (en) * | 2021-01-14 | 2021-06-01 | 北方夜视技术股份有限公司 | Image intensifier fluorescent screen performance comparison device and method |
-
2008
- 2008-12-26 CN CN200820233165U patent/CN201392804Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952137A (en) * | 2020-08-14 | 2020-11-17 | 中国科学院工程热物理研究所 | Low-light-level image intensifier with high resolution and high gain multiple |
| CN111952137B (en) * | 2020-08-14 | 2024-02-23 | 中国科学院工程热物理研究所 | Low-light-level image intensifier with high resolution and high gain multiple |
| CN112259438A (en) * | 2020-10-22 | 2021-01-22 | 中国建筑材料科学研究总院有限公司 | Input window and preparation method and application thereof |
| CN112259438B (en) * | 2020-10-22 | 2023-10-31 | 中国建筑材料科学研究总院有限公司 | Input window and preparation method and application thereof |
| CN112863977A (en) * | 2021-01-14 | 2021-05-28 | 北方夜视技术股份有限公司 | High-resolution low-light-level image intensifier tube |
| CN112885679A (en) * | 2021-01-14 | 2021-06-01 | 北方夜视技术股份有限公司 | Image intensifier fluorescent screen performance comparison device and method |
| CN112885679B (en) * | 2021-01-14 | 2023-03-10 | 北方夜视技术股份有限公司 | Image intensifier fluorescent screen performance comparison device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20101226 |