CN104779131A - X-ray image amplifier - Google Patents
X-ray image amplifier Download PDFInfo
- Publication number
- CN104779131A CN104779131A CN201510014539.7A CN201510014539A CN104779131A CN 104779131 A CN104779131 A CN 104779131A CN 201510014539 A CN201510014539 A CN 201510014539A CN 104779131 A CN104779131 A CN 104779131A
- Authority
- CN
- China
- Prior art keywords
- vacuum tank
- ray image
- electron
- optical system
- image intensifier
- 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.)
- Granted
Links
- 239000011810 insulating material Substances 0.000 claims abstract description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 22
- 238000009413 insulation Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004111 Potassium silicate Substances 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 2
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract 3
- 230000002349 favourable effect Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008520 organization Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007511 glassblowing Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007582 slurry-cast process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/863—Vessels or containers characterised by the material thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/88—Coatings
- H01J2229/885—Coatings having particular electrical insulation properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
The invention relates to an X-ray image amplifier, which comprises a vacuum vessel (1) and an electron optical system (2), wherein the vacuum vessel is formed by electrical insulating material and comprises an input fluorescent screen (3), a photocathode (4) arranged behind the input fluorescent screen and emitting electron (e-), and an output fluorescent screen (5), and the electron optical system (2) comprises predetermined number of electrodes (21, 22, 23, 24). According to the invention, the electrodes (21, 22, 23, 24) of the electron optical system (2) at least partially arranged at outside of the vacuum vessel (1), so as to obtain a design structure with simple structure and can greatly reduce the cost of assembling.
Description
Technical field
The present invention relates to a kind of x ray image intensifier.
Background technology
Such x ray image intensifier is such as from books " Bildgebende System fuer diemedizinische Diagnostik " the 3rd edition, Publicis-MCD-publishing house, 1995, ISBN 3-89578-002-2, Heinz Morneburg (Hrsg.) the 293rd page rises known.
In addition, books " Imaging Systems for Medical Diagnostics " the 2nd edition, PublicisCorporate Publishing, 2005, ISBN 3-89578-226-2, in Arnulf Oppelt (Ed.), from 316 pages, describe such x ray image intensifier equally.
X ray image intensifier known respectively from above-mentioned two publications, has vacuum tank and electron-optical system (Elektronenoptik).The vacuum tank being implemented to electric insulation comprises input phosphor screen, is laid in the photocathode of the electron emission after described input phosphor screen and exports phosphor screen.Electron-optical system has can the electrode of prespecified quantity, and described electrode produces electric field in vacuum tank, and makes with this electron focusing that produces in photocathode and accelerate towards output phosphor screen direction.
In known situation, all pole layouts of electron-optical system will be formed exactly in vacuum tank.Described vacuum tank such as can be manufactured by means of carrying out glass blowing in former.Then the electrode insulation of electron-optical system is assemblied in and is made in the vacuum tank of drip molding, or be laid on the inner surface of vacuum tank.Based on the inconstant wall thickness of vacuum tank possibility, may there is error in the geometry of electrode.Because the electrode of electron-optical system has to pass through vacuum tank and connects, use so again improve assembly fee.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of project organization simple x ray image intensifier.
Described technical problem is solved by a kind of x ray image intensifier according to the present invention.According to x ray image intensifier of the present invention, there is vacuum tank and electron-optical system, wherein said vacuum tank is made up of electrical insulating material, and comprise input phosphor screen, be laid in the photocathode of the electron emission after described input phosphor screen and export phosphor screen, and simultaneously described electron-optical system have can the electrode of prespecified quantity.According to the present invention, the electrode of electron-optical system is laid in vacuum tank outside at least in part.
By being laid at least in part outside vacuum tank by the electrode of electron-optical system, can vacuum tank be passed, just can realize the connection of necessity of the electrode the electrode of being correlated with from outside.Compared with known x ray image intensifier, be more convenient for assembling on project organization according to x ray image intensifier of the present invention, and therefore require that significantly lower assembly fee is used.
The electric field produced by the electrode be laid in outside vacuum tank works through vacuum tank, thus makes electronics at vacuum tank inner focusing and accelerate towards output phosphor screen direction.
Electrode for electron-optical system is laid in the situation outside vacuum tank, and thus the outline of vacuum tank has copied the geometry of electrode.
According to a kind of favourable expansion design, the electrodic electron acceleration region of electron-optical system is laid in outside vacuum tank.According to the preferred form of implementation of another kind, the electrode of electron-optical system is all laid in outside vacuum tank.In category of the present invention, can also convert the above embodiments.
In category of the present invention, most of insulating material can be applied to vacuum tank.According to favourable expansion design, such as glass, plastics or pottery can as the insulating material for vacuum tank.The vacuum tank be made up of glass, can such as be manufactured in known manner in former, and the vacuum tank be made up of plastics, such as can be manufactured with pressure casting method.The vacuum tank be made up of pottery, can be manufactured with powder slurry casting with pressure casting method or also equally.
Preferably expand design according to one, the electrode be laid in outside vacuum tank of electron-optical system is implemented as independent component.On the outer surface that for this reason electrode can be fixed on such as vacuum tank and/or at least one other component of x ray image intensifier.
As the replacement scheme of this scheme, the electrode of electron-optical system is laid on the outer surface of vacuum tank.
In one expansion design, the electrode of electron-optical system is applied on the outer surface of vacuum tank by means of metallising.This is the measure especially easily of a kind of manufacturing process.
Substituting as metallising, can by the electrode of electron-optical system, and as described in being designed by the expansion favourable as another kind, the film plating by means of at least one conduction is located on the outer surface of vacuum tank.
The conducting surface of electrode, the form of implementation favourable according to another kind, is produced by the physical change of at least local of vacuum tank outer surface.
The expansion design alternatively substituted, the electrode of electron-optical system is consisted of the chemical reaction of at least one at least local on vacuum tank outer surface.
Because the vacuum tank being also referred to as vaccum case is made up of electrical insulating material according to the present invention, so prevent the charging of vacuum tank.Extra highly require on the x ray image intensifier of profile having, then can according to a kind of favourable form of implementation, the additional coating laying a kind of electric insulation more at least partly on the outer surface of vacuum tank.By electric insulation additional on vacuum tank outer surface, (local is laid) can also be reduced when operating condition is not good or even stop the electricity of (all laying) vacuum tank to load.
In addition, according to a kind of expansion favourable equally design, at least one inner surface of vaccum case, the coating of electric insulation is laid at least partly.By means of electric insulation additional on vacuum tank inner surface, (local is laid) can also be reduced when operating condition is not good or even stop the electricity of (all laying) vacuum tank to load.Electric insulation coating is preferably made up of the mixture of pulverous chromium (III) oxide and potassium silicate.
Accompanying drawing explanation
Fig. 1 represents the embodiment according to x ray image intensifier of the present invention with longitudinal sectional view.
Embodiment
Form of implementation according to x ray image intensifier of the present invention shown in Figure 1, comprises vacuum tank 1 and electron-optical system 2.
Vacuum tank 1, also referred to as vaccum case, is made up of electrical insulating material.In shown form of implementation, insulating material is glass; Therefore, in this case, vacuum tank 1 is also called glass bulb.
In vacuum tank 1, lay input phosphor screen 3, photocathode 4 follows described input phosphor screen 3 closely and lays.In addition, in vacuum tank 1, output phosphor screen 5 is also laid.
Be incident on the X ray X on input phosphor screen 3, this input phosphor screen 3 produces passage of scintillation light, and described passage of scintillation light will incide on photocathode 4.The electronics e produced in photocathode 4
-, focused on by electron-optical system 2 and accelerate towards output phosphor screen 5 direction, and being incident on this output phosphor screen 5.
Electron-optical system 2 comprises can the electrode 21 to 23 of prespecified quantity, they ringwise wrapped vacuum container 1 and when accessing voltage vacuum tank 1 in generation electric field.According to the present invention, the electrode 21 to 24 of electron-optical system 2 is laid at least in part vacuum tank 1 outside.In the illustrated embodiment in which, the electrode 21,22 and 23 of electron-optical system 2 is at electronics e
-acceleration region be laid in the outside of vacuum tank 1, and electrode 24 is laid in the region of the output phosphor screen 5 in vacuum tank 1.But, in category of the present invention, all electrodes 21 to 24 of electron-optical system 2 are all laid in outside vacuum tank 1, are also fine.
In the illustrated embodiment in which, on annular electrode 21, be accompanied with the voltage between 100V and 400V.Annular electrode 22 has the voltage of 200V to 900V.Annular electrode 23 has the voltage between 2.5kV and 9kV.Be laid in the annular electrode 24 exported in phosphor screen 5 region, there is the voltage (anode voltage) of about 30kV.Electrode 24 is located in vacuum tank 1 by preferred cloth due to needs high-insulation.
The electric field produced by the electrode 21 to 23 be laid in outside vacuum tank 1, works through vacuum tank 1.Thus make the electronics e of generation in photocathode 4
-focus on and accelerate towards the direction exporting phosphor screen 5.Be in the electrode 24 exported in phosphor screen 5 region, be used as electronics e equally
-acceleration and focusing.
As to can finding out in embodiment description shown in Figure 1, on x ray image intensifier, by the electrode 21 to 24 of electron-optical system 2 being laid at least in part the method outside vacuum tank 1, obtain the structure that a kind of project organization is succinct, reduce assembly fee simultaneously significantly and use.
Although done detailed diagram and explanation by means of preferred embodiment to details of the present invention, the present invention has been not limited to embodiment shown in Figure 1.But also can therefrom derive other scheme according to solution of the present invention by professional person, only however depart from by the electrode 21 to 24 of electron-optical system 2 is laid at least in part vacuum tank 1 outer based on thought of the present invention.
Claims (15)
1. have an x ray image intensifier for vacuum tank (1) and electron-optical system (2), wherein said vacuum tank (1) is made up of electrical insulating material and comprises input phosphor screen (3), is laid in electron emission (e after described input phosphor screen (3)
-) photocathode (4) and export phosphor screen (5), and simultaneously have can the electrode (21,22,23,24) of prespecified quantity for described electron-optical system (2), it is characterized in that, the electrode (21,22,23,24) of electron-optical system (2) is laid at least in part vacuum tank (1) outside.
2. according to x ray image intensifier according to claim 1, it is characterized in that, by the electrode (21,22,23,24) of described electron-optical system (2) at electronics (e
-) acceleration region to be laid in described vacuum tank (1) outside.
3. according to x ray image intensifier according to claim 1, it is characterized in that, the electrode (21,22,23,24) of electron-optical system (2) is all laid in vacuum tank (1) outside.
4. according to x ray image intensifier according to claim 1, it is characterized in that, described insulating material is glass.
5. according to x ray image intensifier according to claim 1, it is characterized in that, described insulating material is plastics.
6. according to x ray image intensifier according to claim 1, it is characterized in that, described insulating material is pottery.
7. according to x ray image intensifier according to claim 1, it is characterized in that, the electrode (21,22,23) being laid in vacuum tank (1) outside of electron-optical system (2) is designed to independent component.
8. according to x ray image intensifier according to claim 1, it is characterized in that, by the outer surface of the electrode (21,22,23) vacuum tank that is laid in (1) of electron-optical system (2).
9. according to x ray image intensifier according to claim 8, it is characterized in that, make the electrode of electron-optical system (2) (21,22,23) by means of metal spraying on the outer surface of the vacuum tank that is laid in (1).
10. according to x ray image intensifier according to claim 8, it is characterized in that, the film that the electrode of electron-optical system (2) (21,22,23) conducts electricity by means of at least one is laid on the outer surface of vacuum tank (1).
11. according to x ray image intensifier according to claim 8, it is characterized in that, make the electrode of electron-optical system (2) (21,22,23) by means of at least one at least local physical change be laid on the outer surface of vacuum tank (1).
12. according to x ray image intensifier according to claim 8, it is characterized in that, make the electrode of electron-optical system (2) (21,22,23) by means of at least one at least local chemical reaction be structured on the outer surface of vacuum tank (1).
13., according to x ray image intensifier according to claim 1, is characterized in that, the outer surface of vacuum tank (1) lays the coating of electric insulation.
14., according to x ray image intensifier according to claim 1, is characterized in that, at least one inner surface of vacuum tank (1) lays the coating of electric insulation at least partly.
15., according to x ray image intensifier according to claim 14, is characterized in that, the coating of described electric insulation is made up of the mixture of pulverous chromium (III) oxide and potassium silicate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014200515.9A DE102014200515B4 (en) | 2014-01-14 | 2014-01-14 | X-ray image intensifier |
| DE102014200515.9 | 2014-01-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104779131A true CN104779131A (en) | 2015-07-15 |
| CN104779131B CN104779131B (en) | 2017-07-14 |
Family
ID=53484936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510014539.7A Active CN104779131B (en) | 2014-01-14 | 2015-01-12 | X ray image intensifier |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101702391B1 (en) |
| CN (1) | CN104779131B (en) |
| DE (1) | DE102014200515B4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102293584B1 (en) * | 2018-08-06 | 2021-08-24 | 동명대학교산학협력단 | Real Time Image Acquisition System using a Image Intensifier and Position Error Verification |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3136458A1 (en) * | 1981-09-14 | 1983-03-24 | Siemens AG, 1000 Berlin und 8000 München | X-ray image intensifier |
| US4960987A (en) * | 1988-09-29 | 1990-10-02 | Siemens Aktiengesellschaft | X-ray image intensifier with conductive-coat electrodes on insulated metal sidewalls |
| CN2140564Y (en) * | 1992-07-16 | 1993-08-18 | 仙桃市第一人民医院 | X-ray image-amplification tube |
| JPH0668822A (en) * | 1992-03-17 | 1994-03-11 | Siemens Ag | X-ray image amplification apparatus |
| CN1179620A (en) * | 1996-10-09 | 1998-04-22 | 西门子公司 | X-ray image intensifier |
| CN101206989A (en) * | 2006-12-19 | 2008-06-25 | 株式会社东芝 | Image intensifier |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3319110A (en) * | 1966-05-12 | 1967-05-09 | Gen Electric | Electron focus projection and scanning system |
| NL149636B (en) | 1967-06-09 | 1976-05-17 | Optische Ind De Oude Delft Nv | VACUUM TUBE FOR ELECTRON-OPTICAL IMAGE. |
| JPS5659434A (en) * | 1979-10-18 | 1981-05-22 | Toshiba Corp | Secondary electron multiplying target |
| JP2004103540A (en) * | 2002-09-10 | 2004-04-02 | Masaya Nagai | Thin-type color cathode-ray tube |
-
2014
- 2014-01-14 DE DE102014200515.9A patent/DE102014200515B4/en active Active
-
2015
- 2015-01-12 CN CN201510014539.7A patent/CN104779131B/en active Active
- 2015-01-14 KR KR1020150006705A patent/KR101702391B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3136458A1 (en) * | 1981-09-14 | 1983-03-24 | Siemens AG, 1000 Berlin und 8000 München | X-ray image intensifier |
| US4960987A (en) * | 1988-09-29 | 1990-10-02 | Siemens Aktiengesellschaft | X-ray image intensifier with conductive-coat electrodes on insulated metal sidewalls |
| JPH0668822A (en) * | 1992-03-17 | 1994-03-11 | Siemens Ag | X-ray image amplification apparatus |
| CN2140564Y (en) * | 1992-07-16 | 1993-08-18 | 仙桃市第一人民医院 | X-ray image-amplification tube |
| CN1179620A (en) * | 1996-10-09 | 1998-04-22 | 西门子公司 | X-ray image intensifier |
| CN101206989A (en) * | 2006-12-19 | 2008-06-25 | 株式会社东芝 | Image intensifier |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101702391B1 (en) | 2017-02-22 |
| DE102014200515A1 (en) | 2015-07-16 |
| KR20150084686A (en) | 2015-07-22 |
| DE102014200515B4 (en) | 2022-12-01 |
| CN104779131B (en) | 2017-07-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220128 Address after: Erlangen Patentee after: Siemens Healthineers AG Address before: Munich, Germany Patentee before: SIEMENS AG |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240903 Address after: German Phu F Haim Patentee after: Siemens Medical AG Country or region after: Germany Address before: Erlangen Patentee before: Siemens Healthineers AG Country or region before: Germany |
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| TR01 | Transfer of patent right |