CN205246888U - Water environment radionuclide activity section measurement system - Google Patents
Water environment radionuclide activity section measurement system Download PDFInfo
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- CN205246888U CN205246888U CN201521028084.6U CN201521028084U CN205246888U CN 205246888 U CN205246888 U CN 205246888U CN 201521028084 U CN201521028084 U CN 201521028084U CN 205246888 U CN205246888 U CN 205246888U
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Abstract
The utility model provides a water environment radionuclide activity section measurement system, relates to the nuclear radiation monitoring. Including surveying module, sealing unit, signal transmission module, pressure sensing module, armored module and data processing module, the detection module is equipped with the detector, low temperature keeps module, preamplifier and conversion module, low temperature keeps the module to be used for the detector to keep at the low temperature state, conversion module is used for becoming high voltage output with the current switchover of detector output, the detector output connects the signal transmission module input through preamplifier, sealing unit is used for surveying the sealed of module to to survey the module is connected with signal transmission module, signal transmission module output termination data processing module input, pressure sensing module and signal transmission module are connected, the armored module is used for signal transmission module's protection, data processing module's survey control module input termination signal transmission module output, the analysis module input is set to music to the output termination of survey control module.
Description
Technical field
The utility model relates to nuclear radiation monitoring, especially relates to a kind of water body environment radionuclide specific activity profile survey system.
Background technology
Emergency radiological monitoring is one of requisite emergency response action in nuclear emergency preparation and response, its role is to as spokePenetrating the detecting of accident, evaluation and accident control alleviates the decision-making of action and urgent radiation protection action foundation is provided. At present, IState is the countries with fastest developing speed of nuclear energy uses in the world, and existing 6 operations of current nuclear power station and 3 are building. According to 2009The nuclear power medium-term and long-term plans suggestion for revision proposing, moving installed capacity to the year two thousand twenty China nuclear power is 7,000 ten thousand kilowatts. China is largePart nuclear power station is positioned at the coastal region in east China, and radioactive fast monitored and evaluation method that nuclear power plant enters Adjacent Sea are oceansThe problem that administrative department, local government, the public, the owner of nuclear power plant and related researcher pay close attention to.
On March 11st, 2011, there is 9.0 grades of violent earthquakes of Richter scale and strong tsunami in northeastern Japan portion, and then the Fukushima core causingRadioactive substance leakage accident in power station causes global concern. After nuclear accident occurs, radioactive substance is discharged in environment in a large number, rightEnvironment Ecological Safe and public health have produced impact, and spread to the whole world by the approach such as ocean, atmosphere. How rapid evaluationThe diffusion of radioactive substance in ocean and migration process become nuclear emergency situation and at ordinary times in Marine Environmental Monitoring importantHold. Set up marine environment radioactivity method for quick, development fast monitored device just seems outstanding under the background of Fukushima core crisisFor important and urgent.
The method that water body radioactive environment monitoring adopts is divided into two kinds of methods: gamma spectrum measuring method and laboratory sample on the spot under waterProduct are analyzed. Wherein, the water body long-time continuous that gamma energy spectrum method can only be used for fixed bed position is on the spot measured, cannot meet on-the-spot fastThe demand of the distribution of radionuclide section and diffusion mobility situation in understanding water body environment; And laboratory sample analytical method is due to needWill gather in a large number water body example, cause the layer position of measurement limited, and the sample gathering need to be located by radiochemistry early stageAfter reason enriched sample, could measure with low background gamma spectrometer, the efficiency of this process is very low, is equally also difficult to meetThe demand of on-site rapid measurement.
Along with the fast development that China's nuclear energy and nuclear technology are utilized, research can fast quantitative analysis monitoring marine environment radionuclideMethod and technology, become in China's environmental monitoring the active demand in nuclear emergency situation particularly, have very importantMeaning.
Summary of the invention
The purpose of this utility model is to provide and can effectively realizes the measurement that water body environment radionuclide specific activity section is distributed, and promotesTo a kind of water body environment radionuclide specific activity profile survey system of water body environment radionuclide measurement efficiency.
The utility model comprises detecting module, sealing unit, signal transmission module, pressure sensing module, armored module and dataProcessing module;
Described detecting module is provided with detector, low temperature keeps module, preamplifier and modular converter; Described detector is for visitingSurvey radionuclide; Described low temperature keeps module for making detector remain on low-temperature working state by electronic impulse refrigeration modes;Described modular converter is for the current conversion of detector output is become to high voltage style output, to improve the signal to noise ratio of detector; DescribedThe radionuclide collection signal output termination preamplifier input of detector, preamplifier output termination signal transmission modePiece input;
Described sealing unit is for the sealing of detecting module, and with plug and play interface shape by detecting module and signal transmission moduleBe connected;
Described signal transmission module output termination data processing module input;
Described pressure sensing module, for showing in real time the detector place degree of depth, is connected in sealing unit outside with signal transmission moduleConnect;
Described armored module, for the protection of radionuclide signal acquisition process to signal transmission module, avoids impaired;
Described data processing module is provided with measures control module and analysis of spectrum module; Measure the input termination signal transmission of control moduleThe output of module, the output termination analysis of spectrum module input of measurement control module.
The material of described detector includes but not limited at least one in pottery, HpGe, lanthanum bromide, silicon, germanium, tellurium zinc cadmium etc.Kind.
Described sealing unit is made up of high strength, material high pressure resistant, low-activity, and its shape of cross section can be circular, sideThe shapes such as shape. The material of sealing unit includes but not limited to the material such as carbon fiber, aluminium alloy.
Described signal transmission module can adopt the cable composition of high strength, high conductivity, and the material of described cable includes but not limited toThe materials such as copper core; The length of cable can design according to actual needs.
Described armored module can be wound around and be formed by the wire material of high strength, high tenacity.
Compared with prior art, the utlity model has following advantage:
(1) realize the fast monitored that water body environment radionuclide specific activity section distributes, effectively improved the ageing of monitoring.Realize the radionuclide quantitative measurment of underwater high-resolution;
(2) utilize the shielding properties of seawater self, avoided using traditional shield technology;
(3) grasp in real time the section distribution situation of radionuclide under water.
Brief description of the drawings
Fig. 1 is the structure composition frame chart of the utility model embodiment.
Fig. 2 is the working state schematic representation of the utility model embodiment.
Detailed description of the invention
Following examples are described further the utility model in connection with accompanying drawing.
Referring to Fig. 1 and 2, the utility model embodiment comprises that detecting module, sealing unit 2, signal transmission module 3, pressure passSense module 4, armored module 5 and data processing module 6.
Described detecting module is provided with detector 11, low temperature keeps module 12, preamplifier 13 and modular converter 14; Described spySurvey device 11 for detectable radionuclide; Described low temperature keeps module 12 for make detector protect by electronic impulse refrigeration modesBe held in low-temperature working state; Described modular converter 14 is for the current conversion of detector output is become to high voltage style output, to improveThe signal to noise ratio of detector; Radionuclide collection signal output termination preamplifier 13 inputs of described detector 11, frontPut amplifier 13 and export termination signal transmission module 3 inputs; Described sealing unit 2 is for the sealing of detecting module, and withPlug and play interface shape is connected detecting module with signal transmission module; Described signal transmission module 3 is exported termination data placeReason module 6 inputs; Described pressure sensing module 4 is for showing in real time the detector 11 place degree of depth; Described armored module 5 useProtection to signal transmission module 3 in radionuclide signal acquisition process, avoids impaired. Described data processing module 6 is establishedThere are the control module of measurement and analysis of spectrum module; Measure the output of the input termination signal transmission module 3 of control module, measure controlThe output termination analysis of spectrum module input of molding piece.
The material of described detector includes but not limited at least one in HpGe, lanthanum bromide, silicon, germanium, tellurium zinc cadmium etc.
Described sealing unit is made up of high strength, material high pressure resistant, low-activity, and its shape of cross section can be circular, sideThe shapes such as shape. The material of sealing unit includes but not limited to the material such as carbon fiber, aluminium alloy.
Described signal transmission module can adopt the cable composition of high strength, high conductivity, and the material of described cable includes but not limited toThe materials such as copper core; The length of cable can design according to actual needs.
Described armored module can be wound around and be formed by the wire material of high strength, high tenacity.
When the sealing unit and the detecting module that are connecting signal transmission module enter after the water surface, start measurement mode by data processing moduleFormula, sealing unit and detecting module is transferred to deep layer gradually and the process of subsequent recovery in, detector is by the signal detectingBe delivered to data processing module by signal transmission module, go forward side by side line number according to one's analysis, thereby obtain the profile survey of radionuclideData.
The utility model can rely on the Waterborne movable platforms such as ship base to carry out, and measurement procedure is as follows:
Formally starting before measurement, should make detecting module keep low-temperature condition to treat duty. Along with the release of boat-carrying winch, whenWhen detecting module enters below the water surface together with sealing unit, data processing module control also starts measurement pattern, and detecting module startsImage data is also delivered to data processing module by obtained data through signal transmission module, after nuclide identification, is carrying outQuantitative analysis, and obtain nucleic activity information, and carry out convergence analysis with the depth information that pressure sensor obtains, finally obtainThe section distribution situation of radionuclide specific activity. When detecting module is about to get back to the water surface when above together with sealing unit, data processingModule controls is also closed measurement pattern.
Wherein, detecting module has automatic spectrum stabilization function, can be subject to environment temperature of living in, humidity, vibrations by effective compensation detectorThe drift causing Deng the impact of possible factor. Independent amplification, examination and the shaping circuit of pulse signal process that detector produces,The unified Multi channel spectrum analysis unit that is sent to.
Data processing module, in the time carrying out nucleic analysis, possesses automatic peak-seeking function, can provide full energy peak correspondence by syncaryon databaseNucleic information, the integration information of the activity that simultaneously also can provide the different measuring stage to this stage degree of depth. Carrying out, activity is denseWhen degree is measured, need to carry out scale to the efficiency of measurement mechanism. According to embodiment of the present utility model, the utility model is in combinationOn the basis in master scale source, take the virtual efficiency calibration skill based on the methods availalbe such as monte carlo method, numerical computation methodArt, realizes the efficiency calibration of measurement mechanism.
In Fig. 1, mark 7 is plug and play interface. In Fig. 2, mark 7 is plug and play interface, and 8 is boats and ships, and 9 areWinch, 10 is winch support, P is sea.
Claims (4)
1. a water body environment radionuclide specific activity profile survey system, it is characterized in that comprising detecting module, sealing unit,Signal transmission module, pressure sensing module, armored module and data processing module;
Described detecting module is provided with detector, low temperature keeps module, preamplifier and modular converter; Described detector is for visitingSurvey radionuclide; Described low temperature keeps module for making detector remain on low-temperature working state by electronic impulse refrigeration modes;Described modular converter is for the current conversion of detector output is become to high voltage style output, to improve the signal to noise ratio of detector; DescribedThe radionuclide collection signal output termination preamplifier input of detector, preamplifier output termination signal transmission modePiece input;
Described sealing unit is for the sealing of detecting module, and with plug and play interface shape by detecting module and signal transmission moduleBe connected;
Described signal transmission module output termination data processing module input;
Described pressure sensing module, for showing in real time the detector place degree of depth, is connected in sealing unit outside with signal transmission moduleConnect;
Described armored module, for the protection of radionuclide signal acquisition process to signal transmission module, avoids impaired;
Described data processing module is provided with measures control module and analysis of spectrum module; Measure the input termination signal transmission of control moduleThe output of module, the output termination analysis of spectrum module input of measurement control module.
2. a kind of water body environment radionuclide specific activity profile survey system as claimed in claim 1, is characterized in that described sealingThe shape of cross section of unit is circular or square.
3. a kind of water body environment radionuclide specific activity profile survey system as claimed in claim 1, is characterized in that described signalTransport module adopts cable.
4. a kind of water body environment radionuclide specific activity profile survey system as claimed in claim 1, is characterized in that described armouringModule is made up of steel wire winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521028084.6U CN205246888U (en) | 2015-12-10 | 2015-12-10 | Water environment radionuclide activity section measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521028084.6U CN205246888U (en) | 2015-12-10 | 2015-12-10 | Water environment radionuclide activity section measurement system |
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| Publication Number | Publication Date |
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| CN205246888U true CN205246888U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521028084.6U Expired - Fee Related CN205246888U (en) | 2015-12-10 | 2015-12-10 | Water environment radionuclide activity section measurement system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372694A (en) * | 2015-12-10 | 2016-03-02 | 国家海洋局第三海洋研究所 | Water environment radionuclide activity profile measurement system |
| CN108828652A (en) * | 2018-08-07 | 2018-11-16 | 江苏核电有限公司 | A kind of Radiation monitoring instrument protective device and its installation method |
| CN109298441A (en) * | 2016-10-26 | 2019-02-01 | 中国疾病预防控制中心辐射防护与核安全医学所 | A kind of detection device suitable for radioactive sample |
-
2015
- 2015-12-10 CN CN201521028084.6U patent/CN205246888U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372694A (en) * | 2015-12-10 | 2016-03-02 | 国家海洋局第三海洋研究所 | Water environment radionuclide activity profile measurement system |
| CN109298441A (en) * | 2016-10-26 | 2019-02-01 | 中国疾病预防控制中心辐射防护与核安全医学所 | A kind of detection device suitable for radioactive sample |
| CN109298441B (en) * | 2016-10-26 | 2020-03-27 | 中国疾病预防控制中心辐射防护与核安全医学所 | Detection apparatus suitable for radioactive sample |
| CN108828652A (en) * | 2018-08-07 | 2018-11-16 | 江苏核电有限公司 | A kind of Radiation monitoring instrument protective device and its installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160518 Termination date: 20191210 |