CN108054075A - Amplitude-division image converter tube and amplitude-division camera - Google Patents
Amplitude-division image converter tube and amplitude-division camera Download PDFInfo
- Publication number
- CN108054075A CN108054075A CN201711342464.0A CN201711342464A CN108054075A CN 108054075 A CN108054075 A CN 108054075A CN 201711342464 A CN201711342464 A CN 201711342464A CN 108054075 A CN108054075 A CN 108054075A
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- CN
- China
- Prior art keywords
- framing
- transmission
- strip
- type cathode
- micro
- 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
- 238000009432 framing Methods 0.000 claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims description 8
- 230000005693 optoelectronics Effects 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 210000001367 artery Anatomy 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 238000003384 imaging method Methods 0.000 abstract description 5
- 238000003745 diagnosis Methods 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 238000012631 diagnostic technique Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005658 nuclear physics Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
- H01J43/06—Electrode arrangements
- H01J43/08—Cathode arrangements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B39/00—High-speed photography
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
The invention relates to the technical field of ultrafast diagnosis, and provides a framing image converter and a framing camera aiming at the problems that the traditional framing image converter is low in sensitivity and spatial resolution, needs high-voltage driving and the like. The framing image converter tube comprises a framing tube shell and is characterized by further comprising a transmission type cathode micro-strip substrate, an electron multiplier and a fluorescent screen which are sequentially arranged on the framing tube shell; the transmission type cathode micro-strip substrate can transmit ultraviolet light or soft X-rays, is fixedly arranged on the framing tube shell, and is plated with at least one transmission type cathode micro-strip on the lower surface; the high-voltage gating pulse generated by the high-voltage pulse generating and transmitting system is transmitted on the transmission type cathode micro-strip; the electron multiplier is used for multiplying electrons generated by photoelectric conversion by taking the transmission cathode microstrip as a cathode; the fluorescent screen converts electrons into photon imaging output under the bombardment of multiplied electrons.
Description
Technical field
The present invention relates to ultrafast diagnostic techniques fields, and in particular to a kind of framing image-converter tube and framing camera.
Background technology
Microchannel plate (MCP) travelling wave gating framing camera is a kind of two dimensional image acquisition device, for X-ray and ultraviolet light
Ultrafast phenomenon diagnosis in spectral limit, application range cover nuclear physics, Biomedical Photonics, plasma physics
The new disciplines such as, Strong-field physics are necessary diagnostic devices used in inertial confinement fusion experiment.
Microchannel plate (MCP) travelling wave gating framing camera mainly generates Transmission system and framing image-converter tube structure by high-voltage pulse
Into high-voltage pulse generates Transmission system and generates high pressure gate pulse, to drive cathode micro-strip；Framing image-converter tube is by reflective the moon
The devices such as atomic band, microchannel plate (MCP) electron multiplier and fluorescent screen are formed.When framing camera works, high pressure gating arteries and veins
It is punched in the reflective cathode micro-strip transmission of framing guard system；During the reflective cathode microstrip transmission line of pulse approach, area is being strobed
Domain, the electronics that reflective cathode generates are doubled by microchannel plate (MCP) and amplified, and subsequent electronics is under the action of fluorescent screen electric field
Bombard fluorescent screen imaging.
Micro-strip cathode is produced on microchannel plate (MCP) surface by traditional framing image-converter tube, is reflective cathode.But
Reflective cathode sensitivity is very low；In addition, the characteristic impedance of reflective cathode micro-strip is relatively low, to realize that high-gain doubles, just need
The gate pulse of higher voltage amplitude is wanted, so as to propose higher requirement for gate pulse generation system, adds high pressure choosing
The difficulty that logical pulse generating system makes.
The content of the invention
For traditional framing image-converter tube and framing camera sensitivity, spatial resolution it is low and the problems such as need high drive, this
Invention proposes a kind of framing image-converter tube and framing camera, can be effective using transmission-type cathode travelling wave gating frame imaging technology
Improve its sensitivity and spatial discrimination.
Technical solution provided by the invention is：A kind of framing image-converter tube including framing shell, is characterized in that, is gone back
Including transmission-type cathode micro-strip substrate, electron multiplier and the fluorescent screen being successively set on framing shell；The transmission-type is cloudy
Atomic belt substrate can penetrate ultraviolet light or grenz ray, be fixedly mounted on framing shell, and its lower surface is coated at least
One transmission-type cathode micro-strip；High-voltage pulse generates the high pressure gate pulse that Transmission system generates and is uploaded in transmission-type cathode micro-strip
It is defeated；The electron multiplier is used to carry out again the electronics for carrying out opto-electronic conversion generation as cathode through transmission-type cathode micro-strip
Increase；The fluorescent screen is converted into photon imaging output under the electron bombardment of multiplication, by electronics.
Further, in order to improve spatial discrimination, above-mentioned electron multiplier uses on the electrode plus the micro- of DC current is led to
Guidance tape, major function are amplification small-signals, and the electronics that cathode is converted is allow largely to enter microchannel；In order to convert cathode
Electronics can largely enter microchannel, improve spatial discrimination, number of electrodes and transmission-type cathode micro-strip on microchannel plate
Quantity is identical and matching is arranged on corresponding position.
Further, the lower surface of above-mentioned transmission-type cathode micro-strip substrate and microchannel plate be electronically entered between face away from
From≤1mm.
Further, above-mentioned fluorescent screen includes fibre faceplate and the fluorescent powder for being coated with surface on it, the fibre faceplate
Upper surface and the distance between microchannel plate electronics output face≤1mm.
Further, according to the area of microchannel plate and micro-strip spacing and actual needs, above-mentioned transmission-type cathode micro-strip
It can be 4~6.
Further, above-mentioned transmission-type cathode micro-strip uses au cathode, and thickness is 100~350 angstroms.
Further, above-mentioned transmission-type cathode micro-strip substrate is made of quartz glass or beryllium film.
Further, above-mentioned thickness of electrode is 0.5~2 μm.
A kind of framing camera generates Transmission system including high-voltage pulse, is characterized in that：Above-mentioned framing is further included to become
As pipe.
It further, can do small since electric pulse generates Transmission system amplitude, width can narrow, and can reduce making
Difficulty, and multiplex pulse uniformity is high；Therefore, to improve temporal resolution, above-mentioned high-voltage pulse generates Transmission system using electricity
Pulses generation Transmission system.
The operation principle of the present invention：
All the time it could be theoretically argued that transmission-type cathode quantum transfer efficiency is lower than reflective cathode, the electronics of generation is few,
Framing image-converter tube gain inequality is ultimately resulted in, so transmission-type cathode does not use on framing image-converter tube.
It is found in the recent period by theoretical research and experiment, although reflective cathode transfer efficiency is higher than transmission-type cathode,
The electronics of reflective cathode conversion enter double in microchannel it is fewer, it is most of all reflect microchannel or along
Radially get over microchannel in microchannel.
Opto-electronic conversion is carried out as cathode with transmission-type micro-strip, and gate pulse transmission, microchannel are carried out as micro-strip
Electronics of the micro-strip only as electrode control transmission-type cathode generation on plate is completely into microchannel.When light is turned by transmission-type cathode
After changing electronics into, under the action of electrode applied field, electronics fully enters microchannel and doubles, so the primary electrical of multiplication
Son increases, and the image gain of acquisition also improves, and spatial discrimination is also with raising.
Simultaneously because the ohmage of transmission-type cathode micro-strip is smaller, be lost when gate pulse transmits on it is small, can
To improve the uniformity of framing image-converter tube, while dynode is on microchannel plate, so transmission-type cathode micro-strip institute making alive
It can reduce, so required gated pulse amplitude can reduce, and halfwidth narrows, and is carried while reducing gate pulse manufacture difficulty
The high temporal resolution of framing camera.
Compared with prior art, it is an advantage of the invention that：
1st, framing image-converter tube provided by the invention is micro- by the use of transmission-type cathode micro-strip replacement microchannel plate (MCP) as gating
Band, the electrode being coated on former microchannel plate (MCP) are not re-used as gating micro-strip, to electrode plus DC voltage, it are made to be only used for pair
Electronics in microchannel doubles.The present invention can make generation double by the way that reflective cathode is replaced with transmission-type cathode
Even several times of one times of electronics relative increase, camera sensitivity improves 2~5 times, spatial resolution is also by original 151p/
Mm is greatly improved to 25lp/mm, and sensitivity and spatial resolution achieve breakthrough.
2nd, transmission-type cathode provided by the invention is coated in transmission-type cathode micro-strip substrate, and ohmage is smaller, and
Due to close with the distance between microchannel plate (MCP), institute's making alive need not be very high in transmission-type cathode micro-strip, so greatly
The big amplitude for reducing gate pulse, improves the stability of gate pulse and the uniformity of multiplex pulse, is made reducing
While high pressure gate pulse difficulty, diagnostic test is enable to obtain more stable and accurate data.
Description of the drawings
Fig. 1 is the structure diagram of one embodiment of the invention；
Fig. 2 is along the sectional view in C-C sections in Fig. 1.
Each label is described as follows in figure：
1-high-voltage pulse generates the input terminal of Transmission system；
2-transmission-type cathode micro-strip substrate；
3-supporting rack；
4-framing shell；
5-microchannel plate；
6-fibre faceplate；
7-sealing ring.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
A kind of framing image-converter tube as shown in Figure 1 and Figure 2 including framing shell 4 and is successively set on framing shell 4
Transmission-type cathode micro-strip substrate 2, electron multiplier and fluorescent screen；Electron multiplier is to use to add DC current on the electrode
Microchannel plate 5, fluorescent screen include fibre faceplate 6 and the fluorescent powder for being coated with surface on it.
Transmission-type cathode micro-strip substrate 2 is made of quartz glass or beryllium film, can penetrate ultraviolet light or grenz ray,
It is fixedly mounted on by supporting rack 3 on framing shell 4, and its lower surface is coated with the transmission-type cathode micro-strip of 6 golden materials, it is micro-
Tape thickness is 100~350 angstroms.High-voltage pulse generates Transmission system and electric pulse is selected to generate Transmission system, the high pressure choosing generated
Promote blood circulation punching by high-voltage pulse generation Transmission system input terminal 1 input, after transmitted in transmission-type cathode micro-strip.
The electrode that thickness is 0.5~2 μm is coated on microchannel plate 5；Number of electrodes and transmission-type cathode on microchannel plate 5
Micro-strip is identical and Corresponding matching is set, for controlling the electronics for carrying out opto-electronic conversion generation as cathode through transmission-type cathode micro-strip
Into microchannel, and to doubling into the electronics in microchannel.The lower surface and microchannel of transmission-type cathode micro-strip substrate 2
Plate 5 is electronically entered the distance between face≤1mm.
Fibre faceplate 6 is sealed by sealing ring 7 and framing shell 4.The upper surface of fibre faceplate 6 and 5 electronics of microchannel plate
The distance between output face ＜ 1mm.
A kind of framing camera generates Transmission system and above-mentioned framing image-converter tube including high-voltage pulse, and high-voltage pulse generates biography
Defeated system generates Transmission system using electric pulse.High-voltage pulse generates Transmission system and is produced by the high-voltage pulse on framing shell 4
The input terminal 1 of raw Transmission system is connected with framing image-converter tube.
The course of work of the present invention：
When framing camera works, high-voltage pulse generates the high pressure gate pulse of Transmission system generation in transmission-type cathode micro-strip
Upper transmission.Meanwhile the transmission-type cathode micro-strip of ultraviolet light to be measured or x-ray bombardment as cathode, cathode are produced by opto-electronic conversion
Electronics is given birth to, enters under the electric field action that electronics is generated in micro-channel plate MCP electrode in corresponding microchannel and doubles, pass through
The electronics that micro-channel plate MCP passage repeatedly doubles bombards fluorescent screen under the action of fluorescent screen electric field, and fluorescent screen converts electronics
It is exported into photon imaging.
Claims (10)
1. a kind of framing image-converter tube, including framing shell (4), it is characterised in that：It further includes and is successively set on framing shell (4)
Transmission-type cathode micro-strip substrate (2), electron multiplier and fluorescent screen；
The transmission-type cathode micro-strip substrate (2) can penetrate ultraviolet light or grenz ray, be fixedly mounted on framing shell (4)
On, and its lower surface is coated at least one transmission-type cathode micro-strip, and high-voltage pulse generates the high pressure gating that Transmission system generates
Pulse is transmitted in transmission-type cathode micro-strip；
The electron multiplier is used to carry out again the electronics for carrying out opto-electronic conversion generation as cathode through transmission-type cathode micro-strip
Increase.
2. framing image-converter tube according to claim 1, it is characterised in that：The electron multiplier is using on the electrode plus straight
The microchannel plate (5) of galvanic electricity stream, the number of electrodes on microchannel plate (5) is identical with the quantity of transmission-type cathode micro-strip and matching is set
It puts in corresponding position.
3. framing image-converter tube according to claim 2, it is characterised in that：Under the transmission-type cathode micro-strip substrate (2)
Surface is electronically entered the distance between face≤1mm with microchannel plate (5).
4. framing image-converter tube according to claim 3, it is characterised in that：The fluorescent screen includes fibre faceplate (6) and plating
Make the fluorescent powder on surface on it, the distance between the upper surface of the fibre faceplate (6) and microchannel plate (5) electronics output face
≤1mm。
5. framing image-converter tube according to claim 4, it is characterised in that：The transmission-type cathode micro-strip is 4~6.
6. framing image-converter tube according to claim 5, it is characterised in that：The transmission-type cathode micro-strip substrate (2) uses
Quartz glass or beryllium film are made.
7. framing image-converter tube according to claim 6, it is characterised in that：The transmission-type cathode micro-strip uses au cathode,
Its thickness is 100~350 angstroms.
8. according to any framing image-converter tube of claim 2 to 7, it is characterised in that：The thickness of electrode is 0.5~2 μm.
9. a kind of framing camera generates Transmission system including high-voltage pulse, it is characterised in that：It is any to further include claim 1 to 8
The framing image-converter tube.
10. framing camera according to claim 9, it is characterised in that：It is electric arteries and veins that the high-voltage pulse, which generates Transmission system,
Punching generates Transmission system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711342464.0A CN108054075B (en) | 2017-12-14 | 2017-12-14 | Framing image converter tube and framing camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711342464.0A CN108054075B (en) | 2017-12-14 | 2017-12-14 | Framing image converter tube and framing camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108054075A true CN108054075A (en) | 2018-05-18 |
| CN108054075B CN108054075B (en) | 2024-05-14 |
Family
ID=62132354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711342464.0A Active CN108054075B (en) | 2017-12-14 | 2017-12-14 | Framing image converter tube and framing camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108054075B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114999875A (en) * | 2022-05-16 | 2022-09-02 | 深圳大学 | Time broadening framing camera with improved time resolution consistency |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB653075A (en) * | 1948-04-15 | 1951-05-09 | Baden John Edwards | Improvements in or relating to photo-electric apparatus for electronic translation of optical images |
| GB901792A (en) * | 1959-09-30 | 1962-07-25 | Nat Res Dev | Improvements in or relating to photo-electric image tubes |
| GB1154515A (en) * | 1967-05-15 | 1969-06-11 | Mullard Ltd | Improvements in or relating to Image Intensifiers |
| CN2773749Y (en) * | 2005-07-26 | 2006-04-19 | 中国科学院西安光学精密机械研究所 | Travelling wave gating framing camera for X-ray micro-channel plate |
| CN207637745U (en) * | 2017-12-14 | 2018-07-20 | 中国科学院西安光学精密机械研究所 | Amplitude-division image converter tube and amplitude-division camera |
-
2017
- 2017-12-14 CN CN201711342464.0A patent/CN108054075B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB653075A (en) * | 1948-04-15 | 1951-05-09 | Baden John Edwards | Improvements in or relating to photo-electric apparatus for electronic translation of optical images |
| GB901792A (en) * | 1959-09-30 | 1962-07-25 | Nat Res Dev | Improvements in or relating to photo-electric image tubes |
| GB1154515A (en) * | 1967-05-15 | 1969-06-11 | Mullard Ltd | Improvements in or relating to Image Intensifiers |
| CN2773749Y (en) * | 2005-07-26 | 2006-04-19 | 中国科学院西安光学精密机械研究所 | Travelling wave gating framing camera for X-ray micro-channel plate |
| CN207637745U (en) * | 2017-12-14 | 2018-07-20 | 中国科学院西安光学精密机械研究所 | Amplitude-division image converter tube and amplitude-division camera |
Non-Patent Citations (3)
| Title |
|---|
| 宗方轲: "大动态范围飞秒扫描变像管理论与实验研究", 《中国博士学位论文全文数据库 信息科技辑》, no. 03, pages 24 - 25 * |
| 白雁力等: "X射线分幅相机发展研究", 《电视技术》, vol. 37, no. 19, pages 254 - 257 * |
| 蔡志鹏: "用于双微带阴极选通型分幅相机的改进型第三代像增强器研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》, no. 06, pages 8 - 15 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114999875A (en) * | 2022-05-16 | 2022-09-02 | 深圳大学 | Time broadening framing camera with improved time resolution consistency |
| CN114999875B (en) * | 2022-05-16 | 2024-03-22 | 深圳大学 | Time-widening framing camera with improved time resolution consistency |
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| Publication number | Publication date |
|---|---|
| CN108054075B (en) | 2024-05-14 |
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