CN206116346U - Four -channel photomultiplier - Google Patents
Four -channel photomultiplier Download PDFInfo
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- CN206116346U CN206116346U CN201621011691.6U CN201621011691U CN206116346U CN 206116346 U CN206116346 U CN 206116346U CN 201621011691 U CN201621011691 U CN 201621011691U CN 206116346 U CN206116346 U CN 206116346U
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- focusing electrode
- dynode
- photomultiplier tube
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- 238000007789 sealing Methods 0.000 claims description 32
- 238000009413 insulation Methods 0.000 claims description 27
- 230000003287 optical effect Effects 0.000 claims description 18
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000011159 matrix material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 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
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000289 photo-effect Toxicity 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model discloses a four -channel photomultiplier, including sealed container, from last to being equipped with photocathode, focusing electrode, electron dynode system, positive pole down in proper order in the sealed container, electron dynode system comprises a plurality of layers of dynode, is equipped with insulating washer between every layer of dynode, the focusing electrode electron dynode system and the positive pole links firmly through insulating locating lever mutually, insulating locating lever one end is fixed on the focusing electrode, the focusing electrode is fixed in through the connecting piece the sealed container inner wall, the dynode divide into four multiplication modules. The utility model discloses can realize the inseparable matrix between a plurality of photomultiplier easily arranges to it realizes signal input many as far as possible, the mesh of output to reach in limited detection area, the material, time and the cost that have consumed when also having saved the photomultiplier preparation in addition greatly.
Description
Technical field
This utility model is related to photomultiplier tube technical field, more particularly to a kind of four-way photomultiplier tube.
Background technology
Photomultiplier tube (Photomultiplier Tube, abbreviation PMT) is that one kind is changed into telecommunications faint optical signal
Number and the electron vacuum device that amplified.It makes the photo-multiplier of effusion using secondary, obtains and is far above light
The sensitivity of fulgurite, can measure faint optical signal.It is widely used in the fields such as armarium, photon counting, high-energy physics.
Used as a kind of vacuum component, traditional photomultiplier tube is mainly by photo-emissive cathode (also referred to as photocathode), acceleration pole, focusing
Pole, electron multiplication system and electron collector (anode) etc. are placed on composition in the Dewar vessel of a sealing.
Traditional photomultiplier tube, the light electric vacuum tube typically all only with a passage, i.e., one photomultiplier tube
Only one of which optical signal input and an electrical signal.But some armarium particular/special requirements or other field should
With simultaneously needs detect the output with an output signal of light source diverse location or multiple intense light sources in less area
Signal.At this moment two problems can be related to, one is to be related to multiple inputs and multiple output problems, two be must between multiple inputs
Must closely arrange.Normally, if realizing function above using single pass photomultiplier tube, need to use multiple light simultaneously
Due to the presence of respective shape and sealing container its thickness, so meeting between electric multiplier tube, and multiple photomultiplier tubes
It is difficult to realize closely arrangement between the input for causing pipe.
Utility model content
In view of this, this utility model provides a kind of four-way photomultiplier tube, solves existing multiple photoelectricity times
Increase between pipe due to the presence of respective shape and sealing container its thickness, and cause hardly possible between the input of photomultiplier tube
In the problem for realizing closely arrangement.
The technological means that this utility model is adopted are as follows：
Time is sequentially provided with from top to bottom in a kind of four-way photomultiplier tube, including sealing container, the sealing container
Pole, focusing electrode, electron multiplication system, anode, if the electron multiplication system is made up of dried layer dynode, between every layer of dynode
Insulating washer is provided with, the focusing electrode, the electron multiplication system and the anode are fixedly connected with by insulation positioning rod, described
Insulation positioning rod one end is fixed on the focusing electrode, and the focusing electrode is fixed in the sealing container by connector
Wall, the dynode is divided into four multiplication modules.
Preferably, the multiplication extremely lamellar dynode.
Preferably, the sealing container is provided with optical window, and the photocathode is placed in the optical window inner surface.
Preferably, the dynode, focusing electrode, the corner of anode are equipped with through hole, and the insulation positioning rod passes through described
Through hole is fixed.
Preferably, the anode rear end is provided with insulation spacer, location collar, and the location collar is by the insulation positioning
The insulation spacer is fixed and held by bar.
Preferably, the sealing container is Dewar vessel.
Preferably, the sealing container is square container.
Preferably, the location collar is metal location collar.
Preferably, fixed leaded on the focusing electrode, the sealing container bottom is provided with plug, described
Lead is connected with the plug.
Using a kind of four-way photomultiplier tube provided by the utility model, realizing a photomultiplier tube has four
Input, the function of four output, in addition square global design is more prone to realize the close matrix between multiple photomultiplier tubes
Arrangement, so as to reach as far as possible many signal inputs, the purpose of output are realized in limited detection area；On the other hand also significantly
Save material, time and the cost consumed when photomultiplier tube makes.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of dynode of the present utility model 6；
Fig. 3 is the structural representation of anode of the present utility model 5；
Fig. 4 is the structural representation of insulation positioning rod of the present utility model 9；
Fig. 5 is overlooking the structure diagram of the present utility model；
Fig. 6 is the structural representation of electron multiplication system 4 of the present utility model.
Specific embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
Specific embodiment 1
Referring to figs. 1 to Fig. 5, a kind of four-way photomultiplier tube, including sealing container 1, from up in the sealing container 1
Under be sequentially provided with photocathode 2, focusing electrode 3, electron multiplication system 4, anode 5, if the electron multiplication system 4 is by dried layer dynode
6 compositions, so as to launch secondary electron, secondary electron is through multiple for the photoelectron bombardment dynode material of the transmitting of the photocathode 2
The level of dynode 6 is amplified, and reaches the effect of multiplication.6 points of the dynode is four multiplication modules, and the dynode 6 is lamellar
Dynode, is provided with insulating washer 7 between every layer of dynode 6, the insulating washer 7 is the ceramic material packing ring of insulation, described exhausted
Edge packing ring 7 is spaced apart by each dynode 6.Each dynode 6 in the electron multiplication system 4 is by four groups complete one
The multiplication modules of cause are connected and composed, and are that mutual conduction connects between four groups of multiplication modules, and this four groups of multiplication modules are constituted
The electron multiplication system 4 of four passages k1, k2, k3, k4, every group of multiplication modules are the ingredient of each passage.The focusing
Pole 3, the electron multiplication system 4 and the anode 5 are fixedly connected with by insulation positioning rod 9, and the one end of the insulation positioning rod 9 is consolidated
It is scheduled on the focusing electrode 3, the focusing electrode 3 is fixed on the inwall of the sealing container 1 by connector 15.The focusing electrode
3 are used to concentrate the photoelectron for accelerating the transmitting of photocathode 2 to electron multiplication system 4.The focusing electrode 3 is that four passages are shared, and is led to
The electron multiplication system 4 that the photoelectron launched by photocathode 2 is gathered electric field action the four-way is crossed, most light is made
Electronics can focus on working region, beneficial to raising photomultiplier tube working gain.The anode 5 is used to collect through connection level times
Secondary electron after increasing is used as output signal.The anode 5 is made up of four groups of completely the same and completely self-contained anode modules,
And opened using insulant isolation between every group of anode module, it is to avoid influence each other during signal output, this four groups of anode modules
It is each responsible for the signal output of four passages k1, k2, k3, k4.The sealing container 1 is provided with optical window 8, and the optical window 8 has
The feature of enlarging, can increase the area that optical window 8 receives optical signal.The photocathode 2 is placed in the inner surface of the optical window 8.It is described
Photocathode 2 is placed in one layer of uniform Special Film material of the inner surface of the optical window 8, is responded using external photoeffect specific
The light of wavelength is so as to launching photoelectron to inside the sealing container 1.The dynode 6, focusing electrode 3, the corner of anode 5 are all provided with
There is through hole 10, the insulation positioning rod 9 is fixed through the through hole 10.The rear end of the anode 5 is provided with insulation spacer 11, determines
The insulation spacer 11 is fixed holding by position collar 12, the location collar 12 by the insulation positioning rod 9.The felt pad
Piece 11 plays a part of to position and insulate.The sealing container 1 is Dewar vessel.The location collar 12 is metal locator card
Circle.Fixed leaded 13 on the focusing electrode 3, the bottom of the sealing container 1 is provided with plug 14, the lead 13 and the plug
14 are connected.After photoelectron is via the effect of focusing electrode 3, first dynode 6 of each passage k1, k2, k3, k4, photoelectron are reached
Secondary electron will be launched after dynode 6, secondary electron, finally will be again after the multiplication by stages of dynode 6 multistage below
Electronation is collected in respectively four anode modules of four passages, exports as four of anode signal, and four groups of anode modules set
The anode 5 for having independent signal output channels, last four passages is drawn the signal of telecommunication collected by lead 13.
Specific embodiment 2
Referring to figs. 1 to Fig. 5, a kind of four-way photomultiplier tube, including sealing container 1, from up in the sealing container 1
Under be sequentially provided with photocathode 2, focusing electrode 3, electron multiplication system 4, anode 5, if the electron multiplication system 4 is by dried layer dynode
6 compositions, so as to launch secondary electron, secondary electron is through multiple for the photoelectron bombardment dynode material of the transmitting of the photocathode 2
The level of dynode 6 is amplified, and reaches the effect of multiplication.6 points of the dynode is four multiplication modules, is set between every layer of dynode 6
There is insulating washer 7, the insulating washer 7 is spaced apart by each dynode 6.Each multiplication in the electron multiplication system 4
Pole 6 is connected and composed by four groups of on all four multiplication modules, and is mutual conduction connection between four groups of multiplication modules, this
Four groups of multiplication modules constitute the electron multiplication system 4 of four passages k1, k2, k3, k4, and every group of multiplication modules are each passage
Ingredient.The focusing electrode 3, the electron multiplication system 4 and the anode 5 are fixedly connected with by insulation positioning rod 9, described
The one end of insulation positioning rod 9 is fixed on the focusing electrode 3, and the focusing electrode 3 is fixed on the sealing by connector 15 to be held
The inwall of device 1.The focusing electrode 3 is used to concentrate the photoelectron for accelerating the transmitting of photocathode 2 to electron multiplication system 4.The focusing electrode 3
It is that four passages are shared, the photoelectron launched by photocathode 2 is gathered by electric field action for the electron multiplication of the four-way
System 4, enables most photoelectron to focus on working region, beneficial to raising photomultiplier tube working gain.The anode 5
For the secondary electron after collecting through joining multiplication by stages as output signal.The anode 5 is completely the same and complete by four groups
Independent anode module composition, and opened using insulant isolation between every group of anode module, it is to avoid it is mutual during signal output
Affect, this four groups of anode modules are each responsible for the signal output of four passages k1, k2, k3, k4.The sealing container 1 is provided with
Optical window 8, the optical window 8 has the feature of enlarging, can increase the area that optical window 8 receives optical signal.The photocathode 2 is placed in institute
State the inner surface of optical window 8.The photocathode 2 is placed in one layer of uniform Special Film material of the inner surface of the optical window 8, using outer
Photoelectric effect is responding the light of specific wavelength so as to launch photoelectron to inside the sealing container 1.The dynode 6, focusing
Pole 3, the corner of anode 5 are equipped with through hole 10, and the insulation positioning rod 9 is fixed through the through hole 10.After the anode 5
End is provided with insulation spacer 11, location collar 12, and the location collar 12 passes through the insulation positioning rod 9 by the insulation spacer 11
It is fixed to hold.The insulation spacer 11 plays a part of to position and insulate.The sealing container 1 be Dewar vessel, the sealing
Container 1 is square container.Square sealing container 1 is selected to make to realize close matrix row between multiple photomultiplier tubes
Cloth, reaches the purpose that as far as possible many signal outputs are realized in limited detection area.The location collar 12 is metal location collar.
Fixed leaded 13 on the focusing electrode 3, the bottom of the sealing container 1 is provided with plug 14, the lead 13 and the plug 14
It is connected.After photoelectron is via the effect of focusing electrode 3, first dynode 6 of each passage k1, k2, k3, k4, photoelectron Jing are reached
Crossing after dynode 6 will launch secondary electron, and secondary electron, finally will multiplication after the multiplication by stages of dynode 6 multistage below
Electronics is collected in respectively four anode modules of four passages, exports as four of anode signal, and four groups of anode modules are provided with
Independent signal output channels, the anode 5 of last four passages is drawn the signal of telecommunication collected by lead 13.
In sum, using a kind of four-way photomultiplier tube provided by the utility model, a photoelectricity times is realized
Increase Guan Yousi input, the function of four output, in addition square global design is more prone to realize between multiple photomultiplier tubes
Close matrix arrangement, as far as possible many signal inputs, the purpose of output are realized in limited detection area so as to reach；Another
Aspect also greatlys save material, time and the cost consumed when photomultiplier tube makes.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit this utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc. should be included in this utility model
Within the scope of protection.
Claims (9)
1. a kind of four-way photomultiplier tube, including sealing container, it is characterised in that in the sealing container from top to bottom successively
Photocathode, focusing electrode, electron multiplication system, anode are provided with, if the electron multiplication system is made up of dried layer dynode, per layer times
Increase and insulating washer is provided between pole, the focusing electrode, the electron multiplication system and the anode pass through insulation positioning rod phase
It is connected, described insulation positioning rod one end is fixed on the focusing electrode, and the focusing electrode is fixed on described close by connector
Envelope container inner wall, the dynode is divided into four multiplication modules.
2. a kind of four-way photomultiplier tube according to claim 1, it is characterised in that the multiplication extremely lamellar multiplication
Pole.
3. a kind of four-way photomultiplier tube according to claim 2, it is characterised in that the sealing container is provided with light
Window, the photocathode is placed in the optical window inner surface.
4. a kind of four-way photomultiplier tube according to claim 1, it is characterised in that the dynode, focusing electrode, sun
The corner of pole is equipped with through hole, and the insulation positioning rod is fixed through the through hole.
5. a kind of four-way photomultiplier tube according to claim 4, it is characterised in that the anode rear end is provided with insulation
The insulation spacer is fixed and held by pad, location collar, the location collar by the insulation positioning rod.
6. a kind of four-way photomultiplier tube according to claim 1, it is characterised in that the sealing container is that vacuum is held
Device.
7. a kind of four-way photomultiplier tube according to claim 6, it is characterised in that the sealing container is square appearance
Device.
8. a kind of four-way photomultiplier tube according to claim 5, it is characterised in that the location collar is fixed for metal
Position collar.
9. a kind of four-way photomultiplier tube according to claim 1, it is characterised in that be installed with the focusing electrode and draw
Line, the sealing container bottom is provided with plug, and the lead is connected with the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621011691.6U CN206116346U (en) | 2016-08-31 | 2016-08-31 | Four -channel photomultiplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621011691.6U CN206116346U (en) | 2016-08-31 | 2016-08-31 | Four -channel photomultiplier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206116346U true CN206116346U (en) | 2017-04-19 |
Family
ID=58515829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621011691.6U Active CN206116346U (en) | 2016-08-31 | 2016-08-31 | Four -channel photomultiplier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206116346U (en) |
-
2016
- 2016-08-31 CN CN201621011691.6U patent/CN206116346U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240515 Address after: Room 405-39, Building A, Hainan Binhai International Financial Center, No. 117 Binhai Avenue, Longhua District, Haikou City, Hainan Province, 570100 Patentee after: Hainan Pioneer Optoelectronics Technology Co.,Ltd. Country or region after: China Address before: 571924 Hainan Zhanchuang Factory, South First Ring Road, Laocheng Town, Chengmai County, Hainan Province Patentee before: HAINAN ZHANCHUANG PHOTONICS TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |