CN206531969U - A kind of orifice-plate type collector flat board diagnoses ionisation chamber - Google Patents
A kind of orifice-plate type collector flat board diagnoses ionisation chamber Download PDFInfo
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- CN206531969U CN206531969U CN201720231943.4U CN201720231943U CN206531969U CN 206531969 U CN206531969 U CN 206531969U CN 201720231943 U CN201720231943 U CN 201720231943U CN 206531969 U CN206531969 U CN 206531969U
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- China
- Prior art keywords
- orifice
- plate type
- collector
- flat board
- cavity
- 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.)
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- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000003745 diagnosis Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229920005479 Lucite® Polymers 0.000 claims description 3
- 229920006267 polyester film Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000011067 equilibration Methods 0.000 abstract description 9
- 239000007787 solid Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 4
- 208000002925 dental caries Diseases 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
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- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 238000001959 radiotherapy Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 239000003814 drug Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Ionisation chamber is diagnosed the utility model discloses a kind of orifice-plate type collector flat board, it solves solid collector in the prior art and there is the problem of atmospheric density equilibration time is relatively long, with atmospheric density equilibration time is shortened, the effect of operating efficiency is improved, its technical scheme is：Including ionization chamber enclosure, collector, entrance window, rear window and clamp bracket, the bottom of described ionization chamber enclosure is provided with clamp bracket, and one end of described ionization chamber enclosure is provided with rear window, and the other end of described ionization chamber enclosure is provided with entrance window；Described ionization chamber enclosure forms sealed ionisation chamber cavity with rear window, entrance window, described collector is fixed on the inside of ionization chamber enclosure by bearing, ionisation chamber cavity is separated into the first cavity and the second cavity by described collector, described collector is provided with some through holes, and described the first cavity and the second cavity increases the effect probability of secondary electron and air by through hole.
Description
Technical field
The utility model is related to Ionizing Radiation field, more particularly to a kind of diagnosis ionization of orifice-plate type collector flat board
Room.
Background technology
X ray image technology is widely used in health examination and medical diagnosis on disease, is the confrontation inside of human body disease of modern medicine
The important means of change, but X-ray has certain injury effect, therefore the dose of radiation authorized when measurement and control inspection to people
It is extremely important.
Flat board diagnosis ionisation chamber is exactly the effective tool that X-ray radiation dosage is measured using cavity ionization chamber principle, and it is former
Reason is that X-ray produces secondary electron with the effect of ionisation chamber locular wall, and secondary electron collides with ionisation chamber inner air and produces electricity
From electric charge, by the size for collect and measuring ionization electric charge and obtain dose of radiation.
Plane ionization chamber is mainly made up of ionization chamber enclosure and central collection pole, and central collection pole is typically a piece of solid lead
Electric disk, ionization chamber enclosure is rounded plate shaped.Due to compartmentation of the solid collector to ionisation chamber cavity, make air close
Spend equilibration time relatively long.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of orifice-plate type collector flat board and diagnoses ionization
Room, solid panel collector is replaced using orifice plate collector, by increasing capacitance it is possible to increase secondary electron and air effect probability in ionisation chamber, contracting
Short atmospheric density equilibration time, improves operating efficiency.
The utility model uses following technical proposals：
A kind of orifice-plate type collector flat board diagnoses ionisation chamber, including ionization chamber enclosure, collector, entrance window, rear window and folder
Support is held, the bottom of described ionization chamber enclosure is provided with clamp bracket, and one end of described ionization chamber enclosure is provided with rear window, described
Ionization chamber enclosure the other end be provided with entrance window；Described ionization chamber enclosure forms sealed ionisation chamber with rear window, entrance window
Cavity, described collector is fixed on the inside of ionization chamber enclosure by bearing, and described collector separates ionisation chamber cavity
Into the first cavity and the second cavity, described collector is provided with some through holes, and described the first cavity and the second cavity passes through
Through hole increases the effect probability of secondary electron and air.
Further, the section of described collector is circle.
Further, the material of described collector is lucite, and the surface of described collector is provided with electrically conductive graphite.
Further, described through hole equidistantly distributed.
Further, the section of described ionization chamber enclosure is circle.
Further, the material of described ionization chamber enclosure is aluminium alloy.
Further, the material of described rear window and entrance window is polyester film, described rear window and the surface of entrance window
Provided with electrically conductive graphite.
Further, described collector is connected with signal lead-out wire.
Further, described signal lead-out wire uses coaxial cable.
Further, the material of described bearing is polytetrafluoroethylene (PTFE).
Further, a kind of orifice-plate type collector flat board diagnosis ionisation chamber can be applied in radiotherapy.
Compared with prior art, the beneficial effects of the utility model are：
1st, orifice-plate type collector of the present utility model compared with prior art in solid panel collector there is atmospheric density
The effect that equilibration time substantially shortens, shortens equilibration time and is not less than 5 seconds, improve operating efficiency；
2nd, orifice-plate type collector of the present utility model can increase air effect probability in secondary electron and ionisation chamber, ionization
Room sensitivity improves 2%.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not constitute the improper restriction to the application.
Fig. 1 is structural representation front view of the present utility model；
Fig. 2 is structural representation side view of the present utility model；
Wherein, 1- ionizes chamber enclosure, 2- entrance windows, 3- collectors, 4- clamp brackets, 5- rear windows, 6- signal lead-out wires, 7-
Bearing, 8- through holes, the cavitys of 9- first, the cavitys of 10- second.
Embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, to there is atmospheric density equilibration time relatively long for solid collector in the prior art
Deficiency, in order to solve technical problem as above, present applicant proposes a kind of orifice-plate type collector flat board diagnose ionisation chamber.
In a kind of typical embodiment of the application, there is provided a kind of orifice-plate type collector flat board as Figure 1-Figure 2
Diagnose ionisation chamber, including ionization chamber enclosure 1, collector 3, entrance window 2, rear window 5 and clamp bracket 4, described ionization chamber enclosure 1
Bottom be provided with and be used to support the clamp bracket 4 of ionisation chamber, one end of described ionization chamber enclosure 1 is provided with rear window 5, described electricity
The other end from chamber enclosure 1 is provided with entrance window 2, and described ionization chamber enclosure 1 forms sealed ionisation chamber with rear window 5, entrance window 2
Cavity, described collector 3 is fixed on the inside of ionization chamber enclosure 1 by bearing 7, and described collector 3 is by ionisation chamber cavity
It is separated into the first cavity 9 and the second cavity 10, described collector 3 is provided with some through holes 8, described the first cavity 9 and the
Two cavitys 10 increase the effect probability of secondary electron and air by through hole 8.
Further, the section of described collector 3 is circle.
Further, the material of described collector 3 is lucite, and the surface of described collector 3 is provided with conductive stone
Ink.
Further, the described equidistantly distributed of through hole 8.
Further, the section of described ionization chamber enclosure 1 is circle.
Further, the material of described ionization chamber enclosure 1 is aluminium alloy.
Further, the material of described rear window 5 and entrance window 2 is polyester film, described rear window 5 and entrance window 2
Surface is provided with electrically conductive graphite.
Further, described collector 3 is connected with signal lead-out wire 6.
Further, described signal lead-out wire 6 uses coaxial cable.
Further, the material of described bearing 7 is polytetrafluoroethylene (PTFE), and the section of described bearing is annular, and is propped up
The width of seat is more than the thickness of collector.
Further, a kind of orifice-plate type collector flat board diagnosis ionisation chamber can be applied in radiotherapy.
In the another embodiment of the application, the width of ionization chamber enclosure 1 is 25mm, described rear window 5 and entrance window 2
A diameter of 50mm；Thickness is used to process collector 3 for 0.5mm poly (methyl methacrylate) plate, the section for the collector 3 being processed into is circle
Shape, a diameter of 48mm, and uniformly get through hole 8, a diameter of 2mm of through hole 8 on poly (methyl methacrylate) plate；In the centre bit of collector 3
Put and make a call to a through hole, the surrounding of center through hole is each to make a call to a through hole, via count totally five；Led in the surface coating of collector
Electro-graphitic, dries under 50 DEG C of environment, forms orifice-plate type collector.
Above-mentioned via count can specifically be set according to actual collector size, be not limited to 5.
Above-mentioned orifice-plate type collector has the effect that atmospheric density equilibration time substantially shortens compared to solid panel collector
Really, shorten equilibration time to be not less than 5 seconds, improve operating efficiency；Secondary electron and air effect probability in ionisation chamber can be increased,
Ionisation chamber sensitivity improves 2%.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of orifice-plate type collector flat board diagnoses ionisation chamber, it is characterised in that including ionization chamber enclosure, collector, entrance window,
Rear window and clamp bracket, the bottom of described ionization chamber enclosure are provided with clamp bracket, and one end of described ionization chamber enclosure is provided with
Rear window, the other end of described ionization chamber enclosure is provided with entrance window；Described ionization chamber enclosure is sealed with rear window, entrance window formation
Ionisation chamber cavity, described collector is fixed on the inside of ionization chamber enclosure by bearing, and described collector is by ionisation chamber
Cavity is separated into the first cavity and the second cavity, and described collector is provided with some through holes, the first described cavity and second
Cavity increases the effect probability of secondary electron and air by through hole.
2. a kind of orifice-plate type collector flat board diagnosis ionisation chamber according to claim 1, it is characterised in that described collection
The section of pole is circle.
3. a kind of orifice-plate type collector flat board diagnosis ionisation chamber according to claim 2, it is characterised in that described collection
The material of pole is lucite, and the surface of described collector is provided with electrically conductive graphite.
4. a kind of orifice-plate type collector flat board diagnosis ionisation chamber according to claim 1, it is characterised in that described through hole
Equidistantly distributed.
5. a kind of orifice-plate type collector flat board diagnosis ionisation chamber according to claim 1, it is characterised in that described ionization
The section of chamber enclosure is circle.
6. a kind of orifice-plate type collector flat board diagnosis ionisation chamber according to claim 5, it is characterised in that described ionization
The material of chamber enclosure is aluminium alloy.
7. a kind of orifice-plate type collector flat board diagnosis ionisation chamber according to claim 1, it is characterised in that described rear window
Material with entrance window is polyester film, and described rear window and the surface of entrance window are provided with electrically conductive graphite.
8. a kind of orifice-plate type collector flat board diagnosis ionisation chamber according to claim 1, it is characterised in that described collection
Pole is connected with signal lead-out wire.
9. a kind of orifice-plate type collector flat board diagnosis ionisation chamber according to claim 8, it is characterised in that described signal
Lead-out wire uses coaxial cable.
10. a kind of orifice-plate type collector flat board diagnosis ionisation chamber according to claim 1, it is characterised in that described branch
The material of seat is polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720231943.4U CN206531969U (en) | 2017-03-10 | 2017-03-10 | A kind of orifice-plate type collector flat board diagnoses ionisation chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720231943.4U CN206531969U (en) | 2017-03-10 | 2017-03-10 | A kind of orifice-plate type collector flat board diagnoses ionisation chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206531969U true CN206531969U (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720231943.4U Expired - Fee Related CN206531969U (en) | 2017-03-10 | 2017-03-10 | A kind of orifice-plate type collector flat board diagnoses ionisation chamber |
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| Country | Link |
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| CN (1) | CN206531969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842276A (en) * | 2017-03-10 | 2017-06-13 | 山东中测校准质控技术有限公司 | A kind of orifice-plate type collector flat board diagnoses ionisation chamber |
-
2017
- 2017-03-10 CN CN201720231943.4U patent/CN206531969U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842276A (en) * | 2017-03-10 | 2017-06-13 | 山东中测校准质控技术有限公司 | A kind of orifice-plate type collector flat board diagnoses ionisation chamber |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 |