CN105785419A - Water body radioactivity measuring device and measuring method - Google Patents
Water body radioactivity measuring device and measuring method Download PDFInfo
- Publication number
- CN105785419A CN105785419A CN201610243051.6A CN201610243051A CN105785419A CN 105785419 A CN105785419 A CN 105785419A CN 201610243051 A CN201610243051 A CN 201610243051A CN 105785419 A CN105785419 A CN 105785419A
- Authority
- CN
- China
- Prior art keywords
- water body
- detector
- shield
- radionuclide
- metering unit
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/167—Measuring radioactive content of objects, e.g. contamination
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention provides a water body radioactivity measuring device and a measuring method. The measuring device comprises a water body acquisition unit, a detector, a shielding body, a shell body and a data storage, processing and analysis unit, wherein the shielding body is surrounded by the shell body, the detector is surrounded by the shielding body; a measured water body acquired by the water body acquisition unit is in surface contact with the detector; and the data storage, processing and analysis unit is used for processing and analyzing a radionuclide energy spectrum in the water body detected by the detector, and storing activity concentration of various kinds of radionuclides. By adopting the measuring method, the water body radioactivity measuring device can be used for detecting and recognizing the various kinds of radionuclides in the water body and measuring the activity concentration, and provides necessary underlying source data for nuclear radiation monitoring and early-warning contingency plans.
Description
Technical field
The present invention relates to Radiation monitoring technical field, particularly relate to a kind of water body activity metering unit and measuring method.
Background technology
No matter it is nuclear power station or other nuclear facilities, under normal operation or accident conditions, is all likely to discharge into water radwaste.Meanwhile, some terrorist is likely to the purpose reaching its harm social safety at a large amount of radionuclides of release such as water head site such as reservoir, lake, river etc..For this reason, it may be necessary to water body radionuclide is carried out continual environmental monitoring.Along with the fast development that China's nuclear energy and nuclear technology utilize, the method and apparatus of radionuclide in water body can be quickly measured in research, becomes in China's environmental monitoring the urgent needs in particularly nuclear emergency situation.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of water body activity metering unit and measuring method, it is possible to fast monitored goes out the kind of radionuclide and the active concentration of radionuclide.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: provide a kind of water body activity metering unit, including water body collecting unit, detector, shield, housing and data storage processing analytic unit, described housing surrounds described shield, described shield surrounds described detector, the tested water body that described water body collecting unit gathers contacts with described detector face, and the radionuclide power spectrum in the water body that described detector is detected by described data storage processing analytic unit carries out Treatment Analysis, stores the activity concentration of each radionuclide.
Preferably, described shield is lead screen body, and described shield thickness is 10cm.
Preferably, described shield is square, and described detector is positioned at the space central authorities that described shield surrounds, and tested water body space between detector and shield, the distance between detector outer surface and shield inner surface is water body thickness.
Preferably, in the monitoring device of described square shield, two NaI (Ti) detectors are set, form anti-Compton detector.
Preferably, described shield and described detector are circular, and tested water body is positioned at the space that detector surrounds, and the distance between detector inner surface and the center of circle is water body thickness.
Preferably, described water body thickness is 32cm.
The present invention also provides for a kind of measuring method suitable in above-mentioned water body activity metering unit, including step:
1) water body collecting unit gathers a certain amount of water body sample；
2) detector obtains the radionuclide gamma-spectrometric data in water body sample；
3) from gamma-spectrometric data, remove measurement apparatus and measure the background data of environment；
4) fused peaks in separation energy modal data；
5) adopt real-time power scale and energy spectrum correction method, calculate net peak area；
6) Monte Carlo simulation algorithm is utilized to obtain detector sensitivity coefficient, net peak area and detector sensitivity coefficient phase convolution, it is thus achieved that the activity concentration of radionuclide.
The invention has the beneficial effects as follows: achieve the detection identification to radionuclide multiple in water body and activity concentration is measured, provide the elementary sources data of necessity for nuclear radiation monitoring alarm emergency prediction scheme.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of a kind of water body activity metering unit of the embodiment of the present invention；
The detector that Fig. 2 is the square shield of the embodiment of the present invention arranges structural representation；
The detector that Fig. 3 is embodiment of the present invention circular shield body arranges structural representation；
Fig. 4 is the schematic flow sheet of a kind of water body radiometry method of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
With reference to Fig. 1, a kind of water body activity metering unit, including water body collecting unit, detector, shield, housing and data storage processing analytic unit, housing surrounds shield, shield surrounds detector, the tested water body that water body collecting unit gathers contacts with detector face, and the radionuclide power spectrum in the water body that detector is detected by data storage processing analytic unit carries out Treatment Analysis, stores the activity concentration of each radionuclide.
It is preferred that shield is set to lead screen body, shield thickness is set to 10cm.
It is preferred that shield is set to square, as in figure 2 it is shown, detector is positioned at the space central authorities that shield surrounds, tested water body space between detector and shield, the distance between detector outer surface and shield inner surface is water body thickness；In the embodiment of square shield, two NaI (Ti) detectors are set, form anti-Compton detector, reduce background.
It is preferred that arrange shield and detector for circle, as it is shown on figure 3, tested water body is positioned at the space that detector surrounds, the distance between detector inner surface and the center of circle is water body thickness.
It is preferred that water body thickness is 32cm.
Reference Fig. 4, a kind of measuring method suitable in aforementioned water body activity metering unit, including step:
S1) water body collecting unit gathers a certain amount of water body sample；
S2) detector obtains the radionuclide gamma-spectrometric data in water body sample；
S3) from gamma-spectrometric data, remove measurement apparatus and measure the background data of environment；
S4) fused peaks in separation energy modal data；
S5) adopt real-time power scale and energy spectrum correction method, calculate net peak area；
S6) Monte Carlo simulation algorithm is utilized to obtain detector sensitivity coefficient, net peak area and detector sensitivity coefficient phase convolution, it is thus achieved that the activity concentration of radionuclide.
By the way, radionuclide multiple in water body can be carried out detection and identify and activity concentration measurement by the present invention, provides the elementary sources data of necessity for nuclear radiation monitoring alarm emergency prediction scheme.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (7)
1. a water body activity metering unit, it is characterized in that, including water body collecting unit, detector, shield, housing and data storage processing analytic unit, described housing surrounds described shield, described shield surrounds described detector, the tested water body that described water body collecting unit gathers contacts with described detector face, and the radionuclide power spectrum in the water body that described detector is detected by described data storage processing analytic unit carries out Treatment Analysis, stores the activity concentration of each radionuclide.
2. water body activity metering unit according to claim 1, it is characterised in that described shield is lead screen body, described shield thickness is 10cm.
3. water body activity metering unit according to claim 2, it is characterized in that, described shield is square, described detector is positioned at the space central authorities that described shield surrounds, tested water body space between detector and shield, the distance between detector outer surface and shield inner surface is water body thickness.
4. water body activity metering unit according to claim 3, it is characterised in that arrange two NaI (Ti) detectors, forms anti-Compton detector.
5. water body activity metering unit according to claim 3, it is characterised in that described shield and described detector are circular, and tested water body is positioned at the space that detector surrounds, and the distance between detector inner surface and the center of circle is water body thickness.
6. the water body activity metering unit according to claim 3 or 5, it is characterised in that described water body thickness is 32cm.
7. the measuring method of the water body activity metering unit being applicable to described in claim 1, it is characterised in that include step:
S1, water body collecting unit gather a certain amount of water body sample；
S2, detector obtain the radionuclide gamma-spectrometric data in water body sample；
S3, from gamma-spectrometric data remove measurement apparatus and measure environment background data；
Fused peaks in S4, separation energy modal data；
S5, employing real-time power scale and energy spectrum correction method, calculate net peak area；
S6, Monte Carlo simulation algorithm is utilized to obtain detector sensitivity coefficient, net peak area and detector sensitivity coefficient phase convolution, it is thus achieved that the activity concentration of radionuclide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610243051.6A CN105785419A (en) | 2016-04-19 | 2016-04-19 | Water body radioactivity measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610243051.6A CN105785419A (en) | 2016-04-19 | 2016-04-19 | Water body radioactivity measuring device and measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105785419A true CN105785419A (en) | 2016-07-20 |
Family
ID=56397843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610243051.6A Pending CN105785419A (en) | 2016-04-19 | 2016-04-19 | Water body radioactivity measuring device and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105785419A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597516A (en) * | 2017-01-04 | 2017-04-26 | 中国原子能科学研究院 | Design method of non-destructive measurement system for radioactive material with wide dynamic range |
| CN107219545A (en) * | 2017-07-11 | 2017-09-29 | 国家***第三海洋研究所 | The enrichment of low-activity activity γ nucleic and measuring system in integrated seawater |
| CN107367752A (en) * | 2017-07-28 | 2017-11-21 | 成都理工大学 | Measure the horizontal device of ventilation filter frame radiative |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003048807A1 (en) * | 2001-12-06 | 2003-06-12 | Lemer Protection Anti-X Par Abreviation Societe Lemer Pax | Improvement to methods and devices for measuring the activity of a radioisotope |
| CN103197338A (en) * | 2013-04-19 | 2013-07-10 | 清华大学 | Underwater radiation monitoring method and system |
| CN103267974A (en) * | 2013-04-24 | 2013-08-28 | 清华大学 | Improved Marin cup type automatic monitoring device for water body radionuclide gamma radiation |
| CN103472474A (en) * | 2013-09-13 | 2013-12-25 | 国家***第三海洋研究所 | Split type water body radioactive gamma nuclide measuring system |
| KR20140115778A (en) * | 2013-03-22 | 2014-10-01 | 주식회사 오리온이엔씨 | System for automatically detecting and monitering radiation |
-
2016
- 2016-04-19 CN CN201610243051.6A patent/CN105785419A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003048807A1 (en) * | 2001-12-06 | 2003-06-12 | Lemer Protection Anti-X Par Abreviation Societe Lemer Pax | Improvement to methods and devices for measuring the activity of a radioisotope |
| KR20140115778A (en) * | 2013-03-22 | 2014-10-01 | 주식회사 오리온이엔씨 | System for automatically detecting and monitering radiation |
| CN103197338A (en) * | 2013-04-19 | 2013-07-10 | 清华大学 | Underwater radiation monitoring method and system |
| CN103267974A (en) * | 2013-04-24 | 2013-08-28 | 清华大学 | Improved Marin cup type automatic monitoring device for water body radionuclide gamma radiation |
| CN103472474A (en) * | 2013-09-13 | 2013-12-25 | 国家***第三海洋研究所 | Split type water body radioactive gamma nuclide measuring system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597516A (en) * | 2017-01-04 | 2017-04-26 | 中国原子能科学研究院 | Design method of non-destructive measurement system for radioactive material with wide dynamic range |
| CN107219545A (en) * | 2017-07-11 | 2017-09-29 | 国家***第三海洋研究所 | The enrichment of low-activity activity γ nucleic and measuring system in integrated seawater |
| CN107367752A (en) * | 2017-07-28 | 2017-11-21 | 成都理工大学 | Measure the horizontal device of ventilation filter frame radiative |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103928068B (en) | The system and method for quantitative measurement PWR nuclear power plant primary Ioops coolant slip | |
| CN103197338B (en) | Radiation monitoring method and system under water | |
| CN103837558B (en) | Multielement composition and content detection device and detection method in a kind of aqueous solution based on PGNAA technology | |
| CN103472474A (en) | Split type water body radioactive gamma nuclide measuring system | |
| CN203070790U (en) | System for quantitatively measuring coolant leakage rate of primary loop of pressurized water reactor nuclear power plant | |
| CN103543462A (en) | Nuclide recognition device of radioactive aerosol | |
| CN105785419A (en) | Water body radioactivity measuring device and measuring method | |
| CN103712668B (en) | Passive type core material level detector and detection method | |
| CN109613589A (en) | One kind being used for nuclear facilities damage sequence public toxic effect evaluation method | |
| CN105954787A (en) | Water body radioactivity online monitoring system | |
| Immè et al. | Nuclear track detector characterization for alpha-particle spectroscopy | |
| CN105807310B (en) | Emergency environment monitoring spectrometer used after nuclear accident | |
| CN109738936B (en) | Substance detection method, device and system | |
| CN105353401B (en) | Monolithic CR-39 etching method synchro measures twice222Rn、220The method of Rn concentration | |
| CN103730173B (en) | A kind of judge to let out under nuclear power plant reactor the method in fission product source in pipeline | |
| JP2014025747A (en) | System, device, and method for monitoring radiation | |
| CN204705719U (en) | A kind of portable radioactive contamination meter | |
| KR101380769B1 (en) | The calibration method for interference correction of characterizing the key nuclide on tomographic gamma scanner | |
| CN105929440A (en) | Water radioactivity detection system | |
| KR20050029149A (en) | A buried type environmental radiation monitoring system with the function of forecast the earthquake | |
| US20160358679A1 (en) | Systems and methods for determining an amount of fissile material in a reactor | |
| JP4184910B2 (en) | Leak detection method | |
| CN204142960U (en) | Based on the online Radiation Protection Monitoring system in core medicine production and circulation field of Internet of Things | |
| KR20150067425A (en) | System for monitering fissile materials through automatically detecting radiation | |
| CN108318913B (en) | Shielding device for directionally measuring complex dose field of nuclear power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
|
| RJ01 | Rejection of invention patent application after publication |