CN1287412C - Image converter tube with low light emitting voltage and no spark to high voltage and its making process - Google Patents
Image converter tube with low light emitting voltage and no spark to high voltage and its making process Download PDFInfo
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- CN1287412C CN1287412C CN 03134594 CN03134594A CN1287412C CN 1287412 C CN1287412 C CN 1287412C CN 03134594 CN03134594 CN 03134594 CN 03134594 A CN03134594 A CN 03134594A CN 1287412 C CN1287412 C CN 1287412C
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- conducting film
- phosphor screen
- fibre faceplate
- image converter
- microchannel plate
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Abstract
The present invention relates to an image converter which emits light in low voltage and does not spark in high voltage. A fiber faceplate or optical glass is arranged under the housing of the image converter, and a microchannel plate is arranged on the housing of the image converter; a conducting film covered with a fluorescent powder layer is arranged on the fiber faceplate or the optical glass; a photoelectric cathode is arranged on the input surface of the microchannel plate; the distance between the fluorescent powder layer and the microchannel plate is 200 to 800 mu m. The preparation method comprises: machining the fiber faceplate; preparing the conducting film; preparing a conducting film fluorescent screen; loading fluorescent screen powder mixed liquor in a fluorescent screen preparation tank; weighing a balance tank filled with water and the fluorescent screen preparation tank filled with fluorescent screen mixed liquor by a balance; centrifuging with a centrifuge; baking at a low temperature; baking at a high temperature; manufacturing the photoelectric cathode; installing and checking the steps. The present invention has the advantages of corrosion resistance of acid and base, high stability, low electric resistivity, high luminous transmittance, high image sharpness, small image distortion, simple preparation processes, easy control for process conditions, etc.
Description
Technical field
The invention belongs to photoelectronic imaging device technology field, be specifically related to image converter tube that the low-voltage luminescence high pressure do not strike sparks and preparation method thereof.
Background technology
The low-light image converter tube of extensive use at present can be with invisible ray figure image intensifyings such as alpha ray, β ray, neutral particle and X ray, vacuum ultraviolet, cathode-rays, and is transformed into visual picture.One main parts size of low-light image converter tube is a phosphor screen, fluoroscopic substrate is fibre faceplate (FOP) or optical glass, by means such as precipitation, centrifugal sedimentation, evaporation or crystal growths, deposition-layer phosphor powder layer on substrate, the granularity of phosphor powder layer is below 2.5 μ m, fibre faceplate or optical glass are the carriers of fluorescent material, can be with image information that fluorescent material fluoresces, with a spot of ability and the loss of contrast, offer output, phosphor powder layer under the high energy electron bombardment, sends required visible light by electroluminescent principle work.For reach on the fibre faceplate surface should on-load voltage printing opacity purpose again, on fibre faceplate or optical glass surface phosphor powder layer, adopt at present the method for vacuum evaporation to be coated with thickness and be about the thick aluminum membranous layer of 1000 as electrode, electrode constitutes the anode in the electron beam device, be used to eliminate the electron charge accumulation on the phosphor powder layer (dielectric), guarantee that electron-optical system anode region current potential is unlikely and distort, aluminum membranous layer is electronics and the reflectance coating of light tight son, the fluorescence of beaming back cathode direction is returned, thereby improved the phosphor screen luminosity, aluminum membranous layer has stopped the fluorescence that returns negative electrode, eliminate the photic background that phosphor screen caused, improved the image contrast of device.There is following shortcoming in this aluminum film electrode:
1) because gapped between phosphor powder layer and the aluminum membranous layer, the reason in gap is the fibre faceplate air spots, on rough fibre faceplate, make phosphor powder layer, on phosphor powder layer, drip organic membrane, on organic membrane, plate the conductive aluminum film again, the aluminum membranous layer of this moment is in vacant state and intensity is low, local contact resistance changes, the aluminum film electrode spark phenomenon in use easily takes place, in case low-light image converter tube generation aluminum film electrode sparking, aluminum membranous layer will be torn, and has destroyed the structure of low-light image converter tube, makes the low-light image converter tube can't use again; 2) light transmittance of aluminum membranous layer is lower, generally has only 10～20%, even lower, and the brightness of image is absorbed by aluminium lamination fully when voltage is low.
In addition, the above-mentioned low-light image converter tube aluminum film electrode and the distance of microchannel plate are bigger, the distance of low-light image converter tube electronics accelerated motion when work increases, phosphor screen increases to the electronics disperse of microchannel plate, the spatial resolution of image converter tube reduces, and the resistivity of aluminum membranous layer is low, average transmittance is low, when low-voltage, the poor definition of phosphor screen epigraph makes image fault.
Summary of the invention
A technical problem to be solved by this invention is to overcome the shortcoming of above-mentioned low-light image converter tube, the image converter tube that provides a kind of low-voltage luminescence high pressure not strike sparks.
Another technical problem to be solved by this invention is to provide a kind of method for preparing the image converter tube that the low-voltage luminescence high pressure do not strike sparks.
Solving the problems of the technologies described above the technical scheme that is adopted is: the bottom in the image converter tube housing is provided with fibre faceplate or optical glass, top is provided with microchannel plate, be provided with the transparent conducting film that surface coverage thereon has the layer of fluorescent powder layer in fibre faceplate or optical glass top surface, the microchannel plate input face of microchannel plate is provided with photocathode, and the distance of the microchannel plate output face of the upper surface of phosphor powder layer and microchannel plate is 200～800 μ m.
The thickness of transparent conducting film of the present invention is 0.3～0.5 μ m.The thickness of phosphor powder layer of the present invention is 100～150 μ m.
Preparation method of the present invention comprises the steps:
(1) processing fibre faceplate
Physical dimension requirement processing fibre faceplate by the phosphor screen substrate carries out twin polishing to fibre faceplate.
(2) preparation of conducting film
A. dispose conducting film solution
Take by weighing the SnCl of 22～30g
4.5H
2O is in beaker, and the adding volume ratio is 8: 1～12: 1 H
2O and CH
3Mixed liquid to the solid of OH just dissolves, and adds 1～6gNH again
4F is mixed with the aqueous solution, stirs, and is configured to conducting film solution, pours in the ultrasonic atomizatio generator.
B. the preparation technology of conducting film
Fibre faceplate is put into vacuum furnace, open the mains switch of vacuum furnace, be warmed up to 380 ℃～450 ℃, fibre faceplate is heated, the atomizer of mobile ultrasonic atomizatio generator, making the distance between atomizer and fibre faceplate is 6～12mm, opens stepping motor and ultrasonic atomizer, and the stepping motor gait of march is that 0.5m/s～2.5m/s, atomization quantity are 1800dm
3h
-1～2500dm
3h
-1And carrier gas air pressure is 1.2 * 10
5～2.0 * 10
5Pa, the piezoelectric ceramic transducer of ultrasonic atomizatio generator produces ultrasonic vibration with the conducting film solution atomization that is prepared, be carried into the nozzle of ultrasonic atomizer by carrier gas, under Stepping Motor Control, conducting film solution droplet is sprayed onto on the heated fibre faceplate substrate equably, under 380 ℃～450 ℃ high temperature, chemical CVD (chemical vapour deposition (CVD)) reaction takes place in conducting film solution on substrate, can deposit go out uniform SnO on substrate
2: the F film, close the mains switch of vacuum furnace, vacuum furnace is cooled to room temperature, takes out fibre faceplate.
(3) the fluoroscopic preparation of conducting film
A. with abluent or cleanser clean fiber optic panel, put into phosphor screen preparation jar then.
B. dispose fluorescent material liquid and phosphor screen powder liquid
The configuration of 200ml fluorescent material liquid is as follows:
20%K
2SiO
3Solution 40ml
Fluorescent material 2.3kg
Water adds to 200ml
The configuration of 500ml phosphor screen powder mixed liquor is as follows:
Fluorescent material liquid 200ml
4.2%Sr (NO
3)
2Solution 1.7ml～2.2ml
Water adds to 500ml.
C. in the phosphor screen of the phosphor screen powder mixed liquor that mixes being packed into the preparation jar.
D. weigh compensator that water is housed and the phosphor screen preparation jar that the phosphor screen mixed liquor is housed in the balance, two jars weight is identical.
E. phosphor screen preparation jar and compensator are installed on the centrifuge, open the centrifuge mains switch, the rotating speed of adjusting centrifuge with speed regulator rises to 3000 rev/mins from 2800 rev/mins, and then it is 4000 rev/mins with the rotating speed that speed regulator is adjusted centrifuge, after stablizing 3～4 minutes, close the centrifuge mains switch.
F. take off phosphor screen preparation jar, blot a water in the clean phosphor screen preparation jar with pipe, treat that fluorescent material is all done after, take out fibre faceplate, wipe clean optical fiber and the fluorescent material at position, plate upper surface edge is put into the low-temperature bake that muffle furnace carries out 60 ℃ to fibre faceplate then with clean cloth.
G. with 20% K
2SiO
3Solution directly is filled in the culture dish with filter paper, and phosphor screen immerses 20% K
2SiO
310 seconds in the solution, take out then, treat to put into muffle furnace after phosphor screen is done, 380 ℃ of bakings 1 hour, naturally cool to normal temperature, from muffle furnace, take out.
(4) vacuum evaporation gold photocathode on microchannel plate.
(5) assembling and check
Bottom in the image converter tube housing is with the conducting film phosphor screen and the welding of image converter tube housing of (3) preparation, microchannel plate is installed on top in the image converter tube housing, keeping at a distance between phosphor screen and the microchannel plate is 200～800 μ m, vacuumizes leak detection, tests by the technical conditions of product.
The present invention adopts nesa coating, and film side hinders less than 30 Ω/, and light transmittance is greater than 90%, and resistivity is low, and conducting film and fibre faceplate surface combination are tight, have fundamentally eliminated the high voltage arc phenomenon.Nesa coating is even, can note distinct image on the CCD camera.Distance between phosphor screen and the microchannel plate shortens, because the image converter tube space length is little, the distance of image converter tube electronics accelerated motion when work shortens greatly, and phosphor screen does not almost have disperse to the electronics of microchannel plate as a result, thereby the spatial resolution of image converter tube is improved.The present invention has acid-alkali-corrosive-resisting, good stability, resistivity is low, average transmittance is high, image definition is high, image fault is little, the resolution advantages of higher of camera.Al membrane electrode in the instruments such as alternative existing streak camera of nesa coating of the present invention and low-light level night vision device.Adopt the product of the present invention of the inventive method preparation, the fibre faceplate that equipment needed thereby is simple, preparation technology is simple, process conditions are easy to control, be coated with conducting film can use repeatedly.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
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, the image converter tube that the low-voltage luminescence high pressure of present embodiment is not struck sparks is to be connected by fibre faceplate 1, conducting film 2, phosphor powder layer 3, microchannel plate input face 4, photocathode 5, microchannel plate output face 6, microchannel plate 7, image converter tube housing 8 to constitute.
Bottom in image converter tube housing 8 is equipped with fibre faceplate 1, the also available optical flat of fibre faceplate 1 replaces, as substrate, upper surface at fibre faceplate 1 adopts high temperature pyrolytic cracking (HTP) to be manufactured with the conducting film 2 of layer of transparent, the thickness of conducting film 2 is 0.4 μ m, and conducting film 2 is as anode of the present invention.This transparent conducting film 2 of the present invention is tight with combining of fibre faceplate 1 substrate, solved the spark phenomenon of electrode when high pressure, make the present invention have extraordinary withstand voltage properties, high pressure can be brought up to tens kilovolts from several kilovolts, when low-voltage, just improved the definition of image, reduce the distortion of image, improved the spatial resolution of image converter tube.Advantages such as conducting film 2 has acid-alkali-corrosive-resisting, rub resistance, water-fastly washes, good stability, rete are thin.After tested, side's resistance of conducting film 2 is less than 30 Ω/, and average transmittance is higher than 90%.Plating layer of fluorescent powder layer 3 on the upper surface of fibre faceplate 1 upper conductive film 2, the material of phosphor powder layer 3 is a P20 fluorescent material, and the thickness of phosphor powder layer 3 is 120 μ m, and voltage phosphor powder layer 3 beginnings when 800V are luminous.Phosphor powder layer 3 is under 12～15kv work field intensity, and its fluorescence conversion efficiency is 7%～10%, and luminous efficiency is 80～100lm/w.Top in image converter tube housing 8 is equipped with microchannel plate 7, the distance of the microchannel plate output face 6 of the upper surface of phosphor powder layer 3 and microchannel plate 7 is 500 μ m, because phosphor powder layer 3 of the present invention is little with the distance of microchannel plate 7, the distance of the present invention's electronics accelerated motion when work is shortened greatly, 7 electronics does not almost have disperse from phosphor powder layer 3 to microchannel plate, has improved gain brightness of the present invention and spatial resolution.Be coated with photocathode 5 on the microchannel plate input face 4 of microchannel plate 7, photocathode 5 will be connected with power cathode by lead.
Its preparation method is as follows:
(1) processing fibre faceplate
Physical dimension requirement processing fibre faceplate 1 by the phosphor screen substrate carries out twin polishing to fibre faceplate 1;
(2) preparation of conducting film
A. dispose conducting film solution
Take by weighing the SnCl of 25g
45H
2O is in beaker, and the adding volume ratio is 10: 1 H
2O and CH
3Mixed liquid to the solid of OH just dissolves, and adds 3gNH again
4F is mixed with the aqueous solution, stirs, and is configured to conducting film solution, pours in the ultrasonic atomizatio generator;
B. the preparation technology of conducting film
(3) the fluoroscopic preparation of conducting film
A. with abluent or cleanser clean fiber optic panel 1, put into phosphor screen preparation jar then;
B. dispose fluorescent material liquid and phosphor screen powder liquid
The configuration of 200ml fluorescent material liquid is as follows:
20%K
2SiO
3Solution 40ml
Fluorescent material 2.3kg
Water adds to 200ml
The configuration of 500ml phosphor screen powder mixed liquor is as follows:
Fluorescent material liquid 200ml
4.2%Sr (NO
3)
2Solution 2.0ml
Water adds to 500ml
C. in the phosphor screen of the phosphor screen powder mixed liquor that mixes being packed into the preparation jar;
D. weigh compensator that water is housed and the phosphor screen preparation jar that the phosphor screen mixed liquor is housed in the balance, two jars weight is identical;
E. phosphor screen preparation jar and compensator are installed on the centrifuge, open the centrifuge mains switch, the rotating speed of adjusting centrifuge with speed regulator rises to 3000 rev/mins from 2800 rev/mins, and then it is 4000 rev/mins with the rotating speed that speed regulator is adjusted centrifuge, after stablizing 3～4 minutes, close the centrifuge mains switch;
F. take off phosphor screen preparation jar, blot a water in the clean phosphor screen preparation jar with pipe, treat that fluorescent material is all done after, take out fibre faceplate 1, wipe clean the fluorescent material at position, fibre faceplate 1 upper surface edge with clean cloth, then fibre faceplate 1 is put into the low-temperature bake that muffle furnace carries out 60 ℃;
G. with 20% K
2SiO
3Solution directly is filled in the culture dish with filter paper, and phosphor screen immerses 20% K
2SiO
310 seconds in the solution, take out then, treat to put into muffle furnace after phosphor screen is done, 380 ℃ of bakings 1 hour, naturally cool to normal temperature, from muffle furnace, take out;
(4) vacuum evaporation gold photocathode on microchannel plate 7
(5) assembling and check
Bottom in image converter tube housing [8] is with the conducting film phosphor screen and image converter tube housing [8] welding of (3) preparation, microchannel plate 7 is installed on top in image converter tube housing 8, keeping at a distance between phosphor screen and the microchannel plate is 200～800 μ m, vacuumize leak detection, test by the technical conditions of product.
In the present embodiment, the thickness of conducting film 2 is 0.3 μ m, and the thickness of phosphor powder layer 3 is 100 μ m, and the distance of the microchannel plate output face 6 of the upper surface of phosphor powder layer 3 and microchannel plate 7 is 200 μ m.The connecting relation of other parts and parts is identical with embodiment 1.Its preparation method is identical with embodiment 1.
Embodiment 3
In the present embodiment, the thickness of conducting film 2 is 0.5 μ m, and the thickness of phosphor powder layer 3 is 150 μ m, and the distance of the microchannel plate output face 6 of the upper surface of phosphor powder layer 3 and microchannel plate 7 is 800 μ m.The connecting relation of other parts and parts is identical with embodiment 1.Its preparation method is identical with embodiment 1.
In the preparation method of above embodiment 1～3:
(2) preparation of conducting film
A. dispose conducting film solution
Take by weighing the SnCl of 22g
45H
2O is in beaker, and the adding volume ratio is 8: 1 H
2O and CH
3Mixed liquid to the solid of OH just dissolves, and adds 1gNH again
4: F is mixed with the aqueous solution, stirs, and is configured to conducting film solution.
B. the preparation technology of conducting film
(3) the fluoroscopic preparation of conducting film
The configuration of 500ml phosphor screen powder mixed liquor is as follows:
Fluorescent material liquid 20ml
4.2%Sr (NO
3)
2Solution 1.7ml
Water adds to 500ml
Other technical process among the preparation method is identical with embodiment 1.The geometry of parts and the connecting relation of parts are identical with respective embodiments.
In the preparation method of above embodiment 1～3:
(2) preparation of nesa coating
A. dispose conducting film solution
Take by weighing the SnCl of 30g
45H
2O is in beaker, and the adding volume ratio is 12: 1 H
2O and CH
3OH is mixed into solid and just dissolves, and adds 6gNH again
4F is mixed with the aqueous solution, stirs, and is configured to conducting film solution.
B. the preparation technology of conducting film
(3) the fluoroscopic preparation of conducting film
The configuration of the glimmering water screen of 500ml powder mixed liquor is as follows:
Fluorescent material liquid 20ml
4.2%Sr (NO
3)
2Solution 2.2ml
Water adds to 500ml
Other technical process among the preparation method is identical with embodiment 1.The geometry of parts and the connecting relation of parts are identical with respective embodiments.
In order to verify beneficial effect of the present invention, the image converter tube that the low-voltage luminescence high pressure that the inventor adopts the embodiment of the invention 1 to make is not struck sparks has carried out contrast test with the low-light image converter tube of using at present, and test case is as follows:
One, testing equipment
1, vacuum system
2, the positive high voltage power supply of 10KV
3, the negative high voltage electricity of 1.2KV is former
4, measuring instrument
5, universal instrument
6, uviol lamp
7, screen intensity meter ST-86LA (instrument plant of Beijing Normal University).
Two, method of testing
The present invention is put into vacuum system, measure phosphor screen of the present invention and microchannel plate does not have short circuit phenomenon with universal instrument, sealing-in is observed flange well, drive vacuum pump and take out low vacuum, low vacuum reach 10Pa following after, open turbomolecular pump and treat that vacuum is extracted into 4 * 10
-4Begin more than the Pa to measure.Measuring process is as follows:
1, opens 10KV positive high voltage mains switch
2, open 1.2KV negative high voltage power source switch
3, open uviol lamp
Situation about 4, immobilize at microchannel plate voltage, screen voltage changing is not measured the light intensity of fluoroscopic light intensity of the present invention and low-light image converter tube aluminium-coated Pyrex with the screen intensity score.
5, calculate two kinds of phosphor screen light intensity difference.
Three, test result
Test result sees Table 1
Table 1 phosphor screen light intensity of the present invention and aluminium-coated Pyrex light intensity contrast test be table as a result
| MCP(KV) | -0.77 | -0.77 | -0.77 | -0.77 | -0.77 | -0.77 | -0.77 |
| Phosphor screen (KV) | 0.83 | 1.03 | 1.31 | 1.50 | 1.82 | 2.00 | 2.52 |
| Conducting film phosphor screen intensity levels test (cd/m 2) | 0.05 | 0.12 | 0.27 | 0.40 | 0.61 | 0.70 | 1.25 |
| Conducting film phosphor screen intensity levels test (cd/m 2) | 0.01 | 0.01 | 0.03 | 0.10 | 0.15 | 0.28 | 0.53 |
| Light intensity difference (cd/m 2) | 0.04 | 0.11 | 0.24 | 0.30 | 0.46 | 0.42 | 0.72 |
Table 2 phosphor screen light intensity of the present invention and aluminium-coated Pyrex light intensity contrast test be table (continuing) as a result
| MCP(KV) | -0.77 | -0.77 | -0.77 | -0.77 | 0.77 | -0.77 | -0.77 |
| Phosphor screen (KV) | 2.86 | 3.20 | 3.50 | 3.85 | 4.06 | 4.30 | 4.50 |
| Conducting film phosphor screen intensity levels test (cd/m 2) | 1.50 | 1.82 | 2.42 | 2.70 | 3.12 | 3.32 | 3.84 |
| Conducting film phosphor screen intensity levels test (cd/m 2) | 0.79 | 0.95 | 1.45 | 1.76 | 1.97 | 2.13 | 2.46 |
| Light intensity difference (cd/m 2) | 0.55 | 0.87 | 0.97 | 0.73 | 1.15 | 1.19 | 1.39 |
Four, test result
Can find out from test result, the nearly subsides distance of phosphor powder layer of the present invention and microchannel plate is 400 μ m, the fluoroscopic light transmittance of conducting film reaches more than 90%, the light transmittance of aluminium-coated Pyrex is 40%, the luminous intensity conducting film of phosphor screen output and the contrast of aluminium film are very obvious, from the low-voltage to the high voltage, all express the difference of light intensity, the characteristics of having given prominence to especially that image converter tube is luminous under low-voltage, not struck sparks under the high voltage.
Claims (3)
1, a kind of low-voltage luminescence high pressure image converter tube of not striking sparks, it is characterized in that: the bottom in image converter tube housing [8] is provided with fibre faceplate [1] or optical glass, top is provided with microchannel plate [7], be provided with the transparent conducting film [2] that surface coverage thereon has layer of fluorescent powder layer [3] in fibre faceplate [1] or optical glass top surface, the microchannel plate input face [4] of microchannel plate [7] is provided with photocathode [5], and the distance of the microchannel plate output face [6] of the upper surface of phosphor powder layer [3] and microchannel plate [7] is 200～800 μ m.
2, the image converter tube of not striking sparks according to the described low-voltage luminescence high pressure of claim 1 is characterized in that: the thickness of said transparent conducting film [2] is 0.3～0.5 μ m; The thickness of said phosphor powder layer [3] is 100～150 μ m.
3, the preparation method of image converter tube as claimed in claim 1 or 2 is characterized in that it comprises the steps:
(1) processing fibre faceplate
Physical dimension requirement processing fibre faceplate [1] by the phosphor screen substrate carries out twin polishing to fibre faceplate [1];
(2) preparation of conducting film
A. dispose conducting film solution
Take by weighing the SnCl of 22～30g
4.5H
2O is in beaker, and the adding volume ratio is 8: 1～12: 1 H
2O and CH
3Mixed liquid to the solid of OH just dissolves, and adds 1～6gNH again
4F is mixed with the aqueous solution, stirs, and is configured to conducting film solution, pours in the ultrasonic atomizatio generator;
B. the preparation technology of conducting film
Fibre faceplate [1] is put into vacuum furnace, open the mains switch of vacuum furnace, be warmed up to 380 ℃～450 ℃, fibre faceplate [1] is heated, the atomizer of mobile ultrasonic atomizatio generator, making the distance between atomizer and fibre faceplate [1] is 6～12mm, opens stepping motor and ultrasonic atomizer, and the stepping motor gait of march is that 0.5m/s～2.5m/s, atomization quantity are 1800dm
3h
-1～2500dm
3h
-1And carrier gas air pressure is 1.2 * 10
5～2.0 * 10
5Pa, the piezoelectric ceramic transducer of ultrasonic atomizatio generator produces ultrasonic vibration with the conducting film solution atomization that is prepared, be carried into the nozzle of ultrasonic atomizer by carrier gas, under Stepping Motor Control, conducting film solution droplet is sprayed onto on heated fibre faceplate [1] substrate equably, under 380 ℃～450 ℃ high temperature, chemical CVD reaction takes place in conducting film solution on substrate, can deposit go out uniform SnO on substrate
2: the F film, close the mains switch of vacuum furnace, vacuum furnace is cooled to room temperature, takes out fibre faceplate [1];
(3) the fluoroscopic preparation of conducting film
A. with abluent or cleanser clean fiber optic panel [1], put into phosphor screen preparation jar then;
B. dispose fluorescent material liquid and phosphor screen powder liquid
The configuration of 200ml fluorescent material liquid is as follows:
20%K
2SiO
3Solution 40ml
Fluorescent material 2.3kg
Water adds to 200ml
The configuration of 500ml phosphor screen powder mixed liquor is as follows:
Fluorescent material liquid 200ml
4.2%Sr (NO
3)
2Solution 1.7ml～2.2ml
Water adds to 500ml
C. in the phosphor screen of the phosphor screen powder mixed liquor that mixes being packed into the preparation jar;
D. weigh compensator that water is housed and the phosphor screen preparation jar that the phosphor screen mixed liquor is housed in the balance, two jars weight is identical;
E. phosphor screen preparation jar and compensator are installed on the centrifuge, open the centrifuge mains switch, the rotating speed of adjusting centrifuge with speed regulator rises to 3000 rev/mins from 2800 rev/mins, and then it is 4000 rev/mins with the rotating speed that speed regulator is adjusted centrifuge, after stablizing 3～4 minutes, close the centrifuge mains switch;
F. take off phosphor screen preparation jar, blot clean phosphor screen preparation jar interior water with pipe, after treating that fluorescent material is all done, take out fibre faceplate [1], wipe clean the fluorescent material at position, fibre faceplate [1] upper surface edge with clean cloth, then fibre faceplate [1] is put into the low-temperature bake that muffle furnace carries out 60 ℃;
G. with 20% K
2SiO
3Solution directly is filled in the culture dish with filter paper, and phosphor screen soaks 20% K
2SiO
310 seconds in the solution, take out then, treat to put into muffle furnace after phosphor screen is done, 380 ℃ of bakings 1 hour, naturally cool to normal temperature, from muffle furnace, take out;
(4) go up vacuum evaporation gold photocathode at microchannel plate [7];
(5) assembling and check
Bottom in image converter tube housing [8] is with the conducting film phosphor screen and image converter tube housing [8] welding of (3) preparation, microchannel plate [7] is installed on top in image converter tube housing [8], keeping at a distance between phosphor screen and the microchannel plate is 200～800 μ m, vacuumize leak detection, test by the technical conditions of product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03134594 CN1287412C (en) | 2003-09-22 | 2003-09-22 | Image converter tube with low light emitting voltage and no spark to high voltage and its making process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03134594 CN1287412C (en) | 2003-09-22 | 2003-09-22 | Image converter tube with low light emitting voltage and no spark to high voltage and its making process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1527348A CN1527348A (en) | 2004-09-08 |
| CN1287412C true CN1287412C (en) | 2006-11-29 |
Family
ID=34286150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03134594 Expired - Fee Related CN1287412C (en) | 2003-09-22 | 2003-09-22 | Image converter tube with low light emitting voltage and no spark to high voltage and its making process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1287412C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064073B (en) * | 2010-12-06 | 2012-12-19 | 中国科学院西安光学精密机械研究所 | Anisotropism focusing large-dynamic stripe image converter |
-
2003
- 2003-09-22 CN CN 03134594 patent/CN1287412C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1527348A (en) | 2004-09-08 |
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