CN209264968U - A kind of flow-type ionization chamber measuring tritium gas - Google Patents
A kind of flow-type ionization chamber measuring tritium gas Download PDFInfo
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- CN209264968U CN209264968U CN201821993511.8U CN201821993511U CN209264968U CN 209264968 U CN209264968 U CN 209264968U CN 201821993511 U CN201821993511 U CN 201821993511U CN 209264968 U CN209264968 U CN 209264968U
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Abstract
A kind of flow-type ionization chamber measuring tritium gas, including electrode, cylinder, insulating materials, cable, shielding box and shell, electrode is located at inner barrel central location, its stainless steel bar for being used to collect particle after gas ionization for one, electrode is fixed on cylinder by electrode contact, cylinder is ionisation chamber ontology, its cross section is cylindrical stainless steel cylinder, blind flange is additionally provided with above cylinder, blind flange is fixedly connected by bolt with cylinder, there are the hole location and air inlet of installation electrode on blind flange, high pressure connection and gas outlet are connected on barrel wall, insulating materials is between cylinder and blind flange, shielding box is located on blind flange and shielding box surrounds electrode contact fixed setting, shell is set to whole ionisation chamber periphery for protecting ionisation chamber ontology and cable, cable is connected with electrode contact, cable between shell and shielding box It is bolted.The ionisation chamber can effectively measure weak current signal, and measurement accuracy is high, meet tritium concentration measurement request in sealing container.
Description
Technical field
The utility model belongs to the activity measurement of tritium gas, and in particular to a kind of for measuring the flow gas of tritium gas
Ionisation chamber.
Background technique
Tritium is the isotope of hydrogen, has extremely important application in military and scientific research field.Because of tritium sustained release β ray,
Cell and genetoxic can be generated to organism, DNA effect result is proved the generation of transposition, mutagenesis and cancer, according to intake
Measure of different sizes, tritium may generate various degrees of radiological hazard, such as carcinogenic, teratogenesis, hereditary variation to operator
Biology toxicological effect, and Central nervous impacts under certain conditions.Therefore, the tritium gas of some particular places is supervised
Particularly important, to mostly use ionisation chamber greatly for the measurement of tritium gas at present method is surveyed, however when tritium concentration is lower, it can not be accurate
Measurement.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of flow-type ionization chambers for measuring tritium gas, on solving
State technological deficiency present in background.
In order to solve the above-mentioned technical problem, the utility model is accomplished by the following way:
A kind of flow-type ionization chamber measuring tritium gas, including electrode, cylinder, insulating materials, cable, shielding box and outer
Shell, the electrode are located at inner barrel central location, are used to collect the stainless steel bar of particle after gas ionization, electrode for one
It is fixed on cylinder by electrode contact, cylinder is ionisation chamber ontology, and cross section is cylindrical stainless steel cylinder, is gone back above cylinder
Equipped with blind flange, blind flange is fixedly connected by bolt with cylinder, there is the hole location and air inlet of installation electrode, cylinder on blind flange
High pressure connection and gas outlet are connected on body wall, the insulating materials is used for blind flange and cylinder between cylinder and blind flange
Between insulate, the shielding box is located on blind flange and shielding box surrounds electrode contact fixed setting, and shell is set to whole ionization
Outdoor is enclosed for protecting ionisation chamber ontology and cable, and the cable is connected with electrode contact, between shell and shielding box
Cable be bolted.
Compared with prior art, the utility model has the advantages that
The ionisation chamber can effectively measure weak current signal, and measurement accuracy reaches ± 10fA；Ionisation chamber is in -0.06MPa
Environment lower 12 hours air tight；It pollutes and lets out brought by extract system using there is hole locular wall that sealing locular wall is replaced to effectively eliminate
Dew problem.The β ray that the Double-level Reticulated wall design of tritium concentration measuring device effectively eliminates tritium in sealing container is entering ionisation chamber
Ion is ionized caused by before, improves the accuracy of measurement；Inner layer net wall, collector and the gold-plated processing of upper and lower end face have
Effect reduces influence of the memory effect to measurement result as caused by the absorption of ionization chamber interior walls tritium, fully meets sealing and holds
Tritium concentration real-time measurement requirement in device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Each label is respectively as follows: in figure
1, cable, 2, shell, 3, cylinder, 4, shielding box, 5, electrode, 6, insulating materials.
Specific embodiment
Specific embodiment of the present utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of flow-type ionization chamber for measuring tritium gas, including electrode 5, cylinder 3, insulating materials 6, cable
1, shielding box 4 and shell 2, the electrode are located at inner barrel central location, for one for collecting particle after gas ionization
Stainless steel bar, electrode is fixed on cylinder by electrode contact, and cylinder is ionisation chamber ontology, and cross section is cylindrical stainless
Steel cylinder, cylinder top are additionally provided with blind flange, and blind flange is fixedly connected by bolt with cylinder, there is the hole of installation electrode on blind flange
Position and air inlet connect high pressure connection on barrel wall and gas outlet, cylinder inner surface polishing treatment, the insulating materials are located at
Between cylinder and blind flange, for insulating between blind flange and cylinder, the shielding box is located on blind flange and shielding box surrounds electricity
The fixed setting of pole connector, shielding box are mainly used for preventing the influence of outer bound pair signal output, and shell is set to outside whole ionisation chamber
It encloses for protecting ionisation chamber ontology and cable, the cable is connected with electrode contact, the electricity between shell and shielding box
Cable is bolted.
Cable is mainly used for the output of weak current signal, the input of high pressure and instrument ground, to ionisation chamber cylinder outside
Wall applies high pressure, and cable connects light current flowmeter, can read from light current flowmeter and measure size of current, under background environment, 1
After hour stablizes, light current flowmeter shows that between ± 10fA, enterprising port is sealed for electric current, and lower air inlet is connect with aspiration pump,
Ionisation chamber is extracted into -0.06MPa pressure, then, pressure maintaining 12 hours, pressure was unchanged.
The above is only the embodiments of the present invention, is stated again, for the ordinary skill people of the art
For member, without departing from the principle of this utility model, several improvement can also be carried out to the utility model, these improvement
Also it is included in the protection scope of the utility model claims.
Claims (1)
1. a kind of flow-type ionization chamber for measuring tritium gas, it is characterised in that: including electrode, cylinder, insulating materials, cable, screen
Box and shell are covered, the electrode is located at inner barrel central location, for one for collecting the stainless of particle after gas ionization
Rod iron, electrode are fixed on cylinder by electrode contact, and cylinder is ionisation chamber ontology, and cross section is cylindrical stainless steel cylinder,
Blind flange is additionally provided with above cylinder, blind flange is fixedly connected by bolt with cylinder, have on blind flange install the hole location of electrode with
And air inlet, high pressure connection and gas outlet are connected on barrel wall, the insulating materials is positioned at cylinder and blind flange between, for method
It insulate between orchid lid and cylinder, the shielding box is located on blind flange and shielding box surrounds electrode contact fixed setting, shell setting
In whole ionisation chamber periphery for protecting ionisation chamber ontology and cable, the cable is connected with electrode contact, is located at shell
Cable between shielding box is bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993511.8U CN209264968U (en) | 2018-11-29 | 2018-11-29 | A kind of flow-type ionization chamber measuring tritium gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993511.8U CN209264968U (en) | 2018-11-29 | 2018-11-29 | A kind of flow-type ionization chamber measuring tritium gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209264968U true CN209264968U (en) | 2019-08-16 |
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ID=67565275
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821993511.8U Active CN209264968U (en) | 2018-11-29 | 2018-11-29 | A kind of flow-type ionization chamber measuring tritium gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN209264968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111880212A (en) * | 2020-08-11 | 2020-11-03 | 中国工程物理研究院核物理与化学研究所 | Surface tritium concentration detector |
-
2018
- 2018-11-29 CN CN201821993511.8U patent/CN209264968U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111880212A (en) * | 2020-08-11 | 2020-11-03 | 中国工程物理研究院核物理与化学研究所 | Surface tritium concentration detector |
| CN111880212B (en) * | 2020-08-11 | 2023-03-14 | 中国工程物理研究院核物理与化学研究所 | Surface tritium concentration detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Song Yun Inventor after: Xiao Ming Inventor after: Song Yuguang Inventor after: Yang Binhua Inventor after: Zhao Fengtao Inventor after: Deng Yunyue Inventor after: Zuo Li Inventor after: Luo Zhongxing Inventor before: Song Yun Inventor before: Xiao Ming Inventor before: Song Yuguang |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220407 Address after: 610000 Building 2, No. 21, Gaopeng Avenue, Chengdu, Sichuan Patentee after: CGN JIUYUAN (CHENGDU) TECHNOLOGY CO.,LTD. Patentee after: Unit 23, 96901 unit, Chinese people's Liberation Army Address before: 610000 Industrial Concentration Zone of Southwest Airport Economic Development Zone, Shuangliu District, Chengdu City, Sichuan Province Patentee before: CGN JIUYUAN (CHENGDU) TECHNOLOGY CO.,LTD. |