CN100346445C - Reflection type travelling wave gating framing image converter tube - Google Patents
Reflection type travelling wave gating framing image converter tube Download PDFInfo
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- CN100346445C CN100346445C CN200410073570.XA CN200410073570A CN100346445C CN 100346445 C CN100346445 C CN 100346445C CN 200410073570 A CN200410073570 A CN 200410073570A CN 100346445 C CN100346445 C CN 100346445C
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- shaped strip
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- 238000009432 framing Methods 0.000 title claims abstract description 9
- 238000007738 vacuum evaporation Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 24
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- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 3
- 230000002123 temporal effect Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 229910000833 kovar Inorganic materials 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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- 230000004304 visual acuity Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A reflection type traveling wave gating framing image converter is characterized in that a circuit board with a circular hole machined in the center is arranged on a flange plate of the image converter, gradient lines are symmetrically manufactured on two sides of the circular hole in the circuit board, and the gradient lines on the circuit board are 2-10 even-number lines which are not connected with each other. A microchannel plate with the diameter not less than 30mm is arranged at the central circular hole of a circuit board on an image converter flange plate, cathode microstrip lines are formed on the upper surface of the microchannel plate in a vacuum evaporation mode, the number of the cathode microstrip lines is 2-10 even number of strip-shaped strip lines which are not mutually connected and is the same as that of the gradient lines, and each strip-shaped strip line is lapped with one gradient line. A Kovar ring is arranged at the lower end in the image converter tube flange, and a fluorescent screen with the distance of 0.5-1 mm from the microchannel plate is arranged on the Kovar ring. It has the advantages of reasonable design, simple structure, short transmission distance, small transmission loss, controllable exposure time, adjustable width of gating electric pulse and the like. Can be used as a diagnostic tool for ultrafast phenomena with high spatial and temporal resolution.
Description
Technical field
The invention belongs to the ultrafast diagnostic device technical field of vacuum photoelectronic imaging device and x-ray imaging, be specifically related to reflection type travelling wave gating framing image-converter tube.
Background technology
The laser fusion process that physical phenomenon is very complicated occurred in several nanoseconds, and the symmetric research of article on plasma body unsteadiness and implosion wishes to measure that plasma temperature and density two-dimensional space distribute and over time.Because the spectral radiance of laser plasma is mainly at the X ray wave band, the duration of radiation is that several nanoseconds are to the hundreds of psec, and be distributed in the spatial dimension of 1 millimeter, require diagnostic device high time resolution and high spatial resolving power also will be arranged to the X ray sensitivity.The picosecond frame camera work is exactly to grow up for this reason.But because this camera can only be taken the process of psec, and, need relatively long time course, so the diagnostic device that needs different time to differentiate for Z constriction plasma nuclear blast test.
The patent No. of application in 1989 is 89108534.3, and denomination of invention is a grenz ray microband travelling wave focal plane shutter picosecond image converter tube for the measurement mechanism of disclosed use test nuclear blast process in the patent of invention of " Softx-ray microband travelling wave focal plane shutter picosecond image-converter fram dividing technology ".The homogeneous tube external diameter of this framing image-converter tube is 55mm, screen effective diameter is 25mm, the diameter of microchannel plate is 36mm, phosphor screen and microchannel plate output face distance are not more than 0.5mm, and microstrip line is wide to be 3mm, and microstrip line is tortuous bar shaped strip line, electric pulse is imported from an end, other end output, the spatial resolution of testing dynamic picture be 10 lines right/millimeter, temporal resolution 200 psecs.This framing image-converter tube can only obtain four width of cloth pictures, will miss a lot of Test Information like this, and electric pulse passes on the microstrip line negative electrode of microchannel plate by transition line, the distance of process is very long, make electrical pulse amplitudes that very big loss be arranged, cause electron gain to descend, unintelligible or survey not come out from the image section information of phosphor screen output, the inhomogeneous unanimity of test result makes experimental result lack comparativity.
Summary of the invention
Technical problem underlying to be solved by this invention is to overcome the shortcoming of above-mentioned image converter tube, provide a kind of reasonable in design, simple in structure, transmission range is short, loss is little, time for exposure may command and the adjustable reflection type travelling wave gating framing image-converter tube of gating electronic pulse width.
Solving the problems of the technologies described above the technical scheme that is adopted is: the wiring board that the center is processed with circular port is set on the image converter tube ring flange, be manufactured with to the bilateral symmetry of circular port transition line on the wiring board, the transition line on the wiring board has 2～10 even number bars that are not connected mutually.The central circular hole site of wiring board is provided with the microchannel plate that diameter is not less than 30mm on the image converter tube ring flange, upper surface vacuum evaporation at microchannel plate has the negative electrode microstrip line, the negative electrode microstrip line is the bar shaped strip line that is not connected mutually of 2～10 even number bars and identical with the number of transition line, each bar bar shaped strip line and a transition line overlap joint.Lower end in the image converter tube ring flange is provided with can cut down ring, can cut down the ring be provided with and microchannel plate between distance be the phosphor screen of 0.5～1mm.
Bar shaped strip line of the present invention is arranged on the symmetrical center line or is parallel and be arranged in the both sides of microchannel plate upper surface symmetrical center line symmetrically.Be arranged in to transition line symmetrical parallel of the present invention the both sides of wiring board central round orifice.
Bar shaped strip line of the present invention is two row, the parallel both sides that are arranged in the symmetrical center line of microchannel plate symmetrically, the outer end of each bar bar shaped strip line and a transition line overlap joint, the width of each bar bar shaped strip line is 5～15mm, the distance of two bar shaped strip lines of same row is 2～4mm, distance between one row's bar shaped strip line and the adjacent row's bar shaped strip line is 2～5mm, and the outer edge of each bar bar shaped strip line and the end surface side of microchannel plate are along coinciding.
The present invention has simple in structure, and each bar gating passage only has transition line at input, and contact point is few, realizes easily.Can make much independently little negative electrode on microchannel plate, each bar bar shaped strip line can be taken a photos at least, and images acquired picture number can be controlled.Each bar bar shaped strip line is apart from weak point, and then the electric pulse transmission range is short, and loss is little, and the image gain of taking gained is even, can avoid the problem of gain reduction.This negative electrode microstrip line shape has the multiplication effect to the burst pulse amplitude, exports under the constant situation of gating electrical pulse amplitudes at electric cabinet, can improve image converter tube sensitivity.Can also be by regulating electronic pulse width, making the time for exposure is that time resolution is adjustable.The time interval of captured every width of cloth image can be regulated by the time of delay of input electric pulse, can be by the hundreds of psec to nanosecond and microsecond magnitude, can evenly divide process of the test or electric pulse time of delay is set according to the time range that the experimenter needs, make things convenient for the tester according to required time section acquisition test result, the requirement of high electric field pulse neither be very high, and it is convenient to realize.It has reasonable in design, simple in structure, advantage such as transmission range is short, loss is little, time for exposure may command and gating electronic pulse width scalable.The diagnostic tool that can be used for the ultrafast phenomena of high-spatial and temporal resolution.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structural representation of negative electrode microstrip line 3 among Fig. 1.
Embodiment
The present invention is described in more detail below in conjunction with drawings and Examples, but the invention is not restricted to these embodiment.
In Fig. 1,2,3, the reflection type travelling wave gating framing image-converter tube of present embodiment is by image converter tube ring flange 1, microchannel plate pressure ring 2, negative electrode microstrip line 3, microchannel plate 4, phosphor screen 5, can cuts down ring 6, wiring board 7, transition line 8 and connect and constitute.
The image converter tube ring flange 1 of present embodiment is a disk structure, on image converter tube ring flange 1 with the screw threads for fastening connector wiring board 7 that has been fixedly connected, the center of wiring board 7 is processed with circular port, transition line 8, the opposite side that a side of circular port is manufactured with 1 row 4 row on the wiring board 7 is manufactured with 1 row, 4 rows' transition line 8 symmetrically, and an end of every transition line 8 is processed with wiring hole.The central circular hole site of wiring board 7 is placed with microchannel plate 4 on image converter tube ring flange 1, top in image converter tube ring flange 1 is equipped with microchannel plate pressure ring 2, microchannel plate pressure ring 2 is fixed on microchannel plate 4 on the image converter tube ring flange 1, the upper surface vacuum evaporation of microchannel plate 4 has negative electrode microstrip line 3, an end of negative electrode microstrip line 3 and transition line 8 overlap joints.Lower end in the image converter tube ring flange 1 is welded with argon arc welding can cut down ring 6, can cut down ring 6 and be connected with phosphor screen 5 usefulness glass dust high temperature sinterings.Distance between phosphor screen 5 and the microchannel plate 4 is 0.5～1mm.
The negative electrode microstrip line 3 of present embodiment is to be made of 8 bar shaped strip line 3-1.Parallel 2 row, the 4 row's bar shaped strip line 3-1 that are arranged in uniform way in diameter is the end face circle of microchannel plate 4 of 56mm, two bar shaped strip line 3-1 of same row are symmetrical and equal in length about the center line of microchannel plate 4, the outer end of each bar bar shaped strip line 3-1 and transition line 8 overlap joints, the wide of each bar bar shaped strip line 3-1 is 6mm, the distance of two bar shaped strip lines of same row 3-1 is 4mm, distance between one row bar shaped strip line 3-1 and the adjacent row's bar shaped strip line 3-1 is 4mm, the end of each bar bar shaped strip line 3-1 and transition line 8 overlap joints.The negative electrode microstrip line 3 of this structure, transmission range is short, and loss is little, can avoid the problem of gain reduction.And the burst pulse amplitude had the multiplication effect, under the constant situation of electric cabinet output gating electrical pulse amplitudes, can improve image converter tube sensitivity.The interval of every bar shaped strip line 3-1 time for exposure can be regulated by the delay of input electric pulse, can make things convenient for the tester according to required time section acquisition test result by the hundreds of psec to nanosecond and microsecond magnitude.
In the present embodiment, parallel 2 row, the 4 row's bar shaped strip line 3-1 that are arranged in uniform way in diameter is the surperficial circle of microchannel plate 2 of 56mm, two bar shaped strip line 3-1 of same row are symmetrical and equal in length about the center line of microchannel plate 2, the outer end of each bar bar shaped strip line 3-1 and transition line 8 overlap joints, the wide of each bar bar shaped strip line 3-1 is 5mm, the distance of two bar shaped strip lines of same row 3-1 is 4mm, and the distance between a row bar shaped strip line 3-1 and the adjacent row's bar shaped strip line 3-1 is 5mm.The connecting relation of other parts and parts is identical with embodiment 1.
In the present embodiment, parallel 2 row, the 4 row's bar shaped strip line 3-1 that are arranged in uniform way in diameter is the surperficial circle of microchannel plate 2 of 56mm, two bar shaped strip line 3-1 of same row are symmetrical and equal in length about the center line of microchannel plate 2, the outer end of each bar bar shaped strip line 3-1 and transition line 8 overlap joints, the wide of each bar bar shaped strip line is 8mm, the distance of two bar shaped strip lines of same row 3-1 is 2mm, and the distance between a row bar shaped strip line 3-1 and the adjacent row's bar shaped strip line 3-1 is 2mm.The connecting relation of other parts and parts is identical with embodiment 1.
In the present embodiment, parallel 2 row, the 1 row's bar shaped strip line 3-1 that is arranged in uniform way in diameter is the surperficial circle of microchannel plate 2 of 30mm, be arranged on the symmetrical center line, two bar shaped strip line 3-1 of same row are symmetrical and equal in length about the center line of microchannel plate 2, the outer end of each bar bar shaped strip line 3-1 and transition line 8 overlap joints, the wide of each bar bar shaped strip line 3-1 is 15mm, and the distance of two bar shaped strip lines of same row 3-1 is 2mm.The connecting relation of other parts and parts is identical with embodiment 1.
In the present embodiment, parallel 2 row, the 5 row's bar shaped strip line 3-1 that are arranged in uniform way in diameter is the surperficial circle of microchannel plate 2 of 56mm, two bar shaped strip line 3-1 of same row are symmetrical and equal in length about the center line of microchannel plate 2, the outer end of each bar bar shaped strip line 3-1 and transition line 8 overlap joints, the wide of each bar bar shaped strip line 3-1 is 6mm, the distance of two bar shaped strip lines of same row 3-1 is 2mm, and the distance between a row bar shaped strip line 3-1 and the adjacent row's bar shaped strip line 3-1 is 2mm.The connecting relation of other parts and parts is identical with embodiment 1.
Operation principle of the present invention is as follows:
The negative electrode microstrip line directly is made on the microchannel plate, the multi channel selecting electric pulse is respectively by behind the transition line on the wiring board, being transferred to microchannel plate is on dielectric negative electrode microstrip line, each bar negative electrode microstrip line according to different time of delays of gating electric pulse in difference constantly by gating.The a certain moment has only on one section negative electrode microstrip line voltage is arranged, and the image that is taken is with and is produced photoelectron image in that negative electrode is little, and photoelectron image is strengthened the back by microchannel plate and arrives phosphor screen, forms visible image output.
Claims (1)
1, a kind of reflection type travelling wave gating framing image-converter tube, in image converter tube ring flange (1), on the direction parallel the wiring board (7) that the center is processed with circular port is set with end face, be manufactured with to the bilateral symmetry of the last circular port of wiring board (7) 2～10 even number bar transition lines (8) that are not connected mutually, the central circular hole site of going up wiring board (7) at image converter tube ring flange (1) is provided with the microchannel plate (4) that diameter is not less than 30mm, upper surface vacuum evaporation at microchannel plate (4) has the negative electrode microstrip line (3) that overlaps with transition line (8), this negative electrode microstrip line (3) be 2～10 even number bars be not connected parallel mutually and with the same number of bar shaped strip line (3-1) of transition line (8), the outer end of each bar bar shaped strip line (3-1) and a transition line (8) overlap joint, lower end in image converter tube ring flange (1) is provided with can cut down ring (6), can cut down that ring (6) is provided with and microchannel plate (4) between distance be the phosphor screen (5) of 0.5～1mm, it is characterized in that: said bar shaped strip line (3-1) is two row, the parallel both sides that are arranged in the symmetrical center line of microchannel plate (4) symmetrically, the width of each bar bar shaped strip line (3-1) is 5～15mm, the distance of two bar shaped strip lines of same row (3-1) is 2～4mm, distance between one row's bar shaped strip line (3-1) and the adjacent row's bar shaped strip line (3-1) is 2～5mm, and the end surface side of the outer edge of each bar bar shaped strip line (3-1) and microchannel plate (4) is along coinciding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410073570.XA CN100346445C (en) | 2004-12-31 | 2004-12-31 | Reflection type travelling wave gating framing image converter tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410073570.XA CN100346445C (en) | 2004-12-31 | 2004-12-31 | Reflection type travelling wave gating framing image converter tube |
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| Publication Number | Publication Date |
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| CN1664981A CN1664981A (en) | 2005-09-07 |
| CN100346445C true CN100346445C (en) | 2007-10-31 |
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| CN200410073570.XA Expired - Fee Related CN100346445C (en) | 2004-12-31 | 2004-12-31 | Reflection type travelling wave gating framing image converter tube |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478660B (en) * | 2010-11-26 | 2013-07-24 | 中国科学院大连化学物理研究所 | Modular charged particle two-dimensional imaging detector |
| CN102064073B (en) * | 2010-12-06 | 2012-12-19 | 中国科学院西安光学精密机械研究所 | Anisotropic focusing large dynamic fringe image converter tube |
| CN103560066B (en) * | 2013-11-11 | 2016-04-13 | 中国工程物理研究院激光聚变研究中心 | Micro scanning time-space resolution measuring system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051626A (en) * | 1989-11-09 | 1991-05-22 | 中国科学院西安光学精密机械研究所 | Pickle dividing technique for soft X-ray microstrip travelling wave focal plane shutter picosecond image converter |
-
2004
- 2004-12-31 CN CN200410073570.XA patent/CN100346445C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051626A (en) * | 1989-11-09 | 1991-05-22 | 中国科学院西安光学精密机械研究所 | Pickle dividing technique for soft X-ray microstrip travelling wave focal plane shutter picosecond image converter |
Non-Patent Citations (3)
| Title |
|---|
| 四通道X射线MCP行波选通分幅相机 山冰，常增虎，刘进元等，光子学报，第26卷第5期 1997 * |
| 软X射线12分幅相机研制进展 成金秀，杨存榜等，科学通报，第42卷第6期 1997 * |
| 门控MCP软X射线皮秒多分幅相机 成金秀，杨存榜等，强激光与粒子束，第11卷第5期 1999 * |
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