CN104597111A - A measuring method of radon gas in environment - Google Patents
A measuring method of radon gas in environment Download PDFInfo
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- CN104597111A CN104597111A CN201310533141.5A CN201310533141A CN104597111A CN 104597111 A CN104597111 A CN 104597111A CN 201310533141 A CN201310533141 A CN 201310533141A CN 104597111 A CN104597111 A CN 104597111A
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- radon
- assay method
- environment measuring
- measuring
- ionization chamber
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Abstract
A measuring method of radon gas in environment is provided. According to the method, incident rays are converted into electrical signals; and through a circuit, signals given by a nuclear radiation detector are amplified, processed and recorded. In specific, after a radon-containing object is introduced into an ionization chamber, air is ionized by alpha particles released by radon and decay products thereof, a center quartz fiber in an electrometer is charged by positive charges accumulated on the central electrode in the ionization chamber, the quartz fiber is deflected under the action of an outer electric field, the deflection speed of the quartz fiber is in direct proportion to the quantity of electric charges on the quartz fiber, namely in direct proportion to the radon concentration, and the concentration of the radon gas is obtained by measuring the deflection speed. The method is reasonable in improvement and simpler and more convenient in technical route and increases the measuring working efficiency.
Description
Technical field
The present invention relates to gas detection technology field, particularly the assay method of random environment measuring.
Background technology
Radgas radon gas is a kind of gas of colorless and odorless, is mainly manifested in deterministic effect and stochastic effects to the impact of human body.Deterministic effect is mainly manifested in, and under the radon gas environment of high concentration, human body erythrocyte increases, and neutrocyte reduces, blood vessel dilatation, blood pressure drops.Stochastic effects are mainly manifested in after human body sucks radon gas and human respiratory tract can be caused to cause because of radiation damage to bring out lung cancer.
Potential harm is there is in the indoor radon gas in living environment to health, the radiation damage of Radon and its descendants to human body accounts for 54% of whole environmental radiation suffered by human body, and invasioning delitescence is long, and improving constantly along with people's living standard, the impacts of factor on China's indoor environment radon consistence and radiation such as house architectural structure, building materials and ventilation situation are also increasing gradually.Show according to American Studies data, radon contamination is to become one of lung cancer morbidity origin cause of formation risk factor more than 15 years carcinogenic latent period for radon gas.
Summary of the invention
Face current environmental air pollution, the invention provides the assay method of random environment measuring, its feature from being, comprising and incident ray is converted into electric signal, and by circuit, then the signal provided by nuclear radiation detector is amplified, processes, record.
The assay method of described random environment measuring will containing after radon body introducing ionization chamber, the a particle that Radon and its descendants is released makes air produce ionization, the positive charge of the contre electrode accumulation of ionization chamber makes the central quartz fibre of electrometer charged, under the effect of external electric field, quartz fibre deflects, its deflection speed is directly proportional to the quantity of electric charge on it, is namely directly proportional to atmosphere concentration, measures the concentration that deflection speed draws radon gas.
The outdoor measurement of described method delimit abnormal area according to measurement result, and be horizontal line with North and South direction during measurement, horizontal direction and vertical direction arrange a measuring point every 3m.
The assay method of described random environment measuring is in the application of outdoor Environmental Measurement.
The improvement of the measuring method of random environment measuring of the present invention is rational, and technology path is more easy, improves surveying work efficiency.
Embodiment
Following non-limiting example can make the present invention of those of ordinary skill in the art's comprehend, but does not limit the present invention in any way.
Embodiment 1
The assay method of random environment measuring, comprise and incident ray is converted into electric signal, pass through circuit, again the signal that nuclear radiation detector provides amplified, processed, record, be specially after introducing ionization chamber containing radon body, the a particle that Radon and its descendants is released makes air produce ionization, the positive charge of the contre electrode accumulation of ionization chamber makes the central quartz fibre of electrometer charged, under the effect of external electric field, quartz fibre deflects, its deflection speed is directly proportional to the quantity of electric charge on it, is namely directly proportional to atmosphere concentration, measures the concentration that deflection speed draws radon gas.Outdoor measurement delimit abnormal area according to measurement result, and be horizontal line with North and South direction during measurement, horizontal direction and vertical direction arrange a measuring point every 3m.
Claims (4)
1. the assay method of random environment measuring, its feature from being, comprising and incident ray is converted into electric signal, and by circuit, then the signal provided by nuclear radiation detector is amplified, processes, record.
2. the assay method of random environment measuring according to claim 1, its feature is from being, after ionization chamber being introduced containing radon body, the a particle that Radon and its descendants is released makes air produce ionization, and the positive charge of the contre electrode accumulation of ionization chamber makes the central quartz fibre of electrometer charged, under the effect of external electric field, quartz fibre deflects, its deflection speed is directly proportional to the quantity of electric charge on it, is namely directly proportional to atmosphere concentration, measures the concentration that deflection speed draws radon gas.
3. the assay method of random environment measuring according to claim 1 and 2, its feature is from being, the outdoor measurement of described method delimit abnormal area according to measurement result, and be horizontal line with North and South direction during measurement, horizontal direction and vertical direction arrange a measuring point every 3m.
4. the assay method of the random environment measuring described in claim 1 or 2 is in the application of outdoor Environmental Measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533141.5A CN104597111A (en) | 2013-10-31 | 2013-10-31 | A measuring method of radon gas in environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533141.5A CN104597111A (en) | 2013-10-31 | 2013-10-31 | A measuring method of radon gas in environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104597111A true CN104597111A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310533141.5A Pending CN104597111A (en) | 2013-10-31 | 2013-10-31 | A measuring method of radon gas in environment |
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| CN (1) | CN104597111A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241168A (en) * | 2017-12-27 | 2018-07-03 | 青岛农业大学 | Radon concentration assay method and measurement system based on sunglo accumulation |
-
2013
- 2013-10-31 CN CN201310533141.5A patent/CN104597111A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241168A (en) * | 2017-12-27 | 2018-07-03 | 青岛农业大学 | Radon concentration assay method and measurement system based on sunglo accumulation |
| CN108241168B (en) * | 2017-12-27 | 2020-11-17 | 青岛农业大学 | Radon gas concentration determination method and system based on usnea accumulation |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150506 |