CN101858985A - Multifunctional rare earth product radioactivity detecting instrument based on composite detector - Google Patents
Multifunctional rare earth product radioactivity detecting instrument based on composite detector Download PDFInfo
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Abstract
The invention discloses a multifunctional rare earth product radioactivity detecting instrument based on a composite detector. The instrument can be used for the radioactivity monitoring of the rare earth product, and comprises a composite detector, a signal conditioning module, a lead chamber, a multi-channel data collecting and analyzing module, a computer data analyzing and managing module, a power supply managing module with low power consumption, and the like, wherein the composite detector is formed by combing a detector for detecting alpha and beta total amount and a detector for detecting gamma energy spectrum into a whole. The instrument can be used for simultaneously measuring the alpha and beta total amount and the gamma energy spectrum, and can give the alpha and beta total amount and the contents of radium, uranium, thorium, potassium and rate earth self radioactive element through one-time measurement. The instrument can realize the function which is realized by several instruments and several measurements in the prior art through one-time measurement. The invention has broad applying prospect in the radioactivity detecting field of rare earth industry, and has the advantages of simple and reasonable structure, high price/performance ratio, low energy consumption, strong function, convenient use and the like.
Description
Technical field
The present invention relates to a kind of based on the complex detector multifunctional rare earth product radioactivity detecting instrument, this instrument relate to a kind of realize that α in the rare-earth products, β total amount and radium, uranium, thorium, potassium, the contamination of rare earth own detect and activity analysis based on the complex detector multifunctional rare earth product radioactivity detecting instrument.
Background technology
Rare earth is valuable strategic resource, and " industrial monosodium glutamate ", " mother's of new material " title is arranged, and is widely used in hard-core technology field and military industry field.Build through nearly 60 years tackling of key scientific and technical problems and development, the rare earth industry development outstanding achievement of China has become the whole world maximum rare earth resources, production, application and exported country.
Since the difference in the rare earths material place of production, the height of sample purity, the difference on the rare earth deep process also has nothing in common with each other the radioactive nuclide kind of sneaking in the rare-earth products, and therefore, it is particularly important that the radiological measuring of rare-earth products seems.The radiological measuring of current rare-earth products generally all needs to measure through several different instruments, could determine whether this product is qualified.Be not easy to execute-in-place like this, say to a certain extent, also be not easy to increase work efficiency.In addition, present gamma energy spectrometer also is difficult to provide the radioactivity of the radioelement of rare earth own.This also inconvenient technological design for the substandard product following process provides foundation.
Summary of the invention
The objective of the invention is to overcome the requirement of above-mentioned technical deficiency, provide a kind of based on the complex detector multifunctional rare earth product radioactivity detecting instrument, the spectral line that this instrument draws by one-shot measurement has following information: the contamination of total α, total β, radium, uranium, thorium, potassium and the element of rare earth own.By the information that instrument provides, at first can judge whether institute's test sample product meet the requirements according to total α+total β whether less than 1Bq/g; Next is the spectral line by failed test sample, to determine radioactive nuclide kind and the content in institute's test sample product; Measure spectral line in addition, can also provide the contamination and the nucleic kind of the radioelement of rare earth own.
Based on the requirement of complex detector multifunctional rare earth product radioactivity detecting instrument at present rare-earth products export market: α total+total β＜1Bq/g.To measure total α+total β, gamma spectrum and the radioactive function of rare earth element itself and be compound to one, whether constitute the radioactivity that both can screen rare-earth products meets the requirements, can be undesirable rare-earth products again the kind and the content of radioactive nuclide wherein are provided, for the technological design of substandard product following process provides foundation.And this instrument also has advantage rational in infrastructure, low in energy consumption, easy to use etc.
In order to reach the foregoing invention purpose, the technical scheme that adopts is a kind of based on the complex detector multifunctional rare earth product radioactivity detecting instrument, and it is characterized in that: this instrument is made up of complex detector, signal condition Shaping Module, vitriol chamber, multiple tracks data collection and analysis module, low-power dissipation power supply administration module and human-machine interface module; This instrument realizes that α, β total amount and radium in the rare-earth products, uranium, thorium, potassium, the contamination of rare earth own detect and activity analysis.
According to provided by the invention based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: described complex detector is connected to form by NaI (Tl) crystal, plastic scintillant and photomultiplier, and complex detector links to each other with the signal condition module; Described complex detector and signal condition module are placed in the vitriol chamber; Described complex detector is connected with multiple tracks data collection and analysis module through the signal condition Shaping Module; Described microprocessor is connected with human-machine interface module with multiple tracks data collection and analysis module respectively, and microprocessor links to each other with computing machine by USB interface.
, it is characterized in that based on the complex detector multifunctional rare earth product radioactivity detecting instrument according to provided by the invention: described complex detector is that NaI (Tl) crystal, plastic scintillant, this several sections of photomultiplier and sample box are linked to each other with a central shaft;
According to provided by the invention based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: described complex detector structure is divided into two parts up and down, wherein the first half is made up of NaI (Tl) detector and signal condition module, and the signal condition Shaping Module is positioned at the detector the top.The latter half is sample box and detection α, Beta-ray scintillation detector, and sample box up;
According to provided by the invention based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: in the described structure, the NaI of complex detector the first half (Tl) detector, signal condition module and central shaft are fixed together, and be stiff.The sample box of complex detector the latter half is fixed together with detection α, Beta-ray scintillation detector.Whole the latter half of complex detector is movable, can freely dismantle;
, it is characterized in that based on the complex detector multifunctional rare earth product radioactivity detecting instrument according to provided by the invention: described instrument has two probes to be combined into a combined probe, and multiple tracks data acquisition and analysis module have only one;
According to provided by the invention based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: the complex detector of described instrument and signal condition module are placed in the vitriol chamber, the fuselage that multichannel pulse scope-analyzer, multiple tracks data collection and analysis, low-power dissipation power supply management and human-machine interface module constitute is outside vitriol chamber, and both link to each other by the communication cable line.
According to provided by the invention based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: this instrument can be measured α, β total amount and gamma spectrum simultaneously, by one-shot measurement, can provide the content of total amount, radium, uranium, thorium, potassium and the radioelement of rare earth own of α, β.
By top narration as can be seen, the present invention has the following advantages: on structural design, adopt combined probe, make things convenient for execute-in-place and maintenance; In system design, adopt highly sensitive NaI (Tl) crystal and plastic scintillant; On systemic-function, this instrument just can provide the content of total amount, radium, uranium, thorium, potassium and the radioelement of rare earth own of α, β by one-shot measurement; On system performance, adopt the low-power dissipation power supply design proposal, and use up-to-date OLED display technique; This instrument leaves USB interface, conveniently is connected with the background data base of computing machine, so that the secondary analysis of data.
Description of drawings
Fig. 1 is the module catenation principle figure based on the complex detector multifunctional rare earth product radioactivity detecting instrument provided by the invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described:
Fig. 1 is the module catenation principle figure based on the complex detector multifunctional rare earth product radioactivity detecting instrument provided by the invention.As shown in FIG., based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: comprise complex detector, signal condition module, vitriol chamber, multichannel pulse scope-analyzer, multiple tracks data collection and analysis module, low-power dissipation power supply administration module and human-machine interface module; Described complex detector is connected to form by highly sensitive NaI (Tl) crystal, plastic scintillant, photomultiplier and sample box; Described complex detector links to each other with the signal condition module, and is placed in the vitriol chamber; Described multiple tracks data collection and analysis module links to each other with complex detector with the signal condition module by communication cable; Described microprocessor links to each other with usb interface module with multiple tracks data collection and analysis module, man-machine interface respectively; Described complex detector, coated outside has magnetic shielding material.Describedly adopt golden metal shell based on the complex detector multifunctional rare earth product radioactivity detecting instrument.
During use, survey the intensity that α, β, γ and the electromagnetic radiation of material effect generation produce electric signal by complex detector, it is no abnormal to determine that by multiple tracks data collection and analysis module α, β, gamma activity have; And provide the content of total amount value, radium, uranium, thorium, potassium and the radioelement of rare earth own of α, β, reach the whether satisfactory screening of rare earth exported product.This instrument also can provide the content of radioelement in the defective rare-earth products by one-shot measurement simultaneously, for the defective rare-earth products design technology flow process of doing over again is provided convenience and foundation.
On circuit function, mainly finish radioactivity survey and spectrum data analysis.Aspect radioactivity survey,, this electromagnetic radiation is converted to faint electric signal by complex detector because various rays and material electromagnetic radiation can take place when having an effect.By subsequent conditioning circuit, this faint electric signal is carried out shaping amplify then, enter multiple tracks data collection and analysis module after making it to become an electric impulse signal.Carry out work by control circuit control multichannel pulse amplitude analysis module, the analog signal conversion of different amplitudes is become corresponding digital signal, track address of this digitized representation, with the address code recording impulse number of track address as storer, the numeration of each track address just can show the distribution situation of pulse amplitude.And the range signal size is the different performance of each element emittance, and the counting of location, corresponding road is represented the radiation intensity of corresponding energy.After the multiple tracks data enter microprocessor, can carry out analyzing and processing to data, data preservation and output etc. by software transfer.Aspect the spectrum data analysis, radium, uranium, thorium, potassium are handled according to the method for routine, and what need special processing is the spectral line processing of total α, total β and the radioelement of rare earth own.Total α here, total β data are not determined the location, road according to the size of its amplitude, but in advance given location, road, this location, road is the location, road that does not have use in the γ spectrum.In addition, the radioelement of the rare earth that conflicts own is arranged, also done identical processing with γ spectrum location, road.
On physical arrangement, adopt combined probe, the measurement with needing 2 to 3 times originally becomes one-shot measurement and just can finish; For fear of Effect of Environmental, adopt the mode of in vitriol chamber, measuring, can improve the authenticity and the accuracy of measurement data; For lucifuge, the requirement that keeps away magnetic, keep away electric field etc., sonde configuration adopts metal shell; Simultaneously, in order to satisfy the demand of on-the-spot long-time continuous sex work, in system design, adopt the low-power dissipation power supply Managed Solution.
Sensitivity to complex detector is mainly depended on and nuclear radiation detector, in order to satisfy the requirement of work on the spot sensitivity, common bigger NaI (Tl) crystal and the plastic scintillant of preferred dimension; Simultaneously, this detector is subjected to such environmental effects bigger, on structural design, adopts and measures in vitriol chamber, simultaneously the design of also considering lucifuge, keeping away magnetic on the structure; Consider the complex detector convenience that sample is changed when work, in the structural design sample box and scintillator detector are combined into magazine, when changing sample, as long as change magazine; And magazine can seal, and therefore can directly carry out approved sample with magazine; When considering temperature effect, when taking the thermal insulation design, adopted the temperature compensation design on circuit, the spectrum stabilization technology that adopts hardware and software to combine is simultaneously eliminated the influence to complex detector of temperature and other factors.Should both can carry out the initial analysis processing of data based on the complex detector multifunctional rare earth product radioactivity detecting instrument at the scene, also can pass to computing machine to measurement data information, data further carried out analyzing and processing by computing machine by USB interface.
Though described embodiments of the present invention in conjunction with the accompanying drawings, the protection domain that those of ordinary skills do not need various distortion that creativity work just can make or modification still to belong to this patent within the scope of the appended claims.
Claims (8)
1. one kind based on the complex detector multifunctional rare earth product radioactivity detecting instrument, and it is characterized in that: this instrument is made up of complex detector, signal condition Shaping Module, vitriol chamber, multiple tracks data collection and analysis module, low-power dissipation power supply administration module and human-machine interface module; This instrument realizes that α, β total amount and radium in the rare-earth products, uranium, thorium, potassium, the contamination of rare earth own detect and activity analysis.
2. according to claim 1 based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: described complex detector is connected to form by NaI (Tl) crystal, plastic scintillant and photomultiplier, and complex detector links to each other with the signal condition module; Described complex detector and signal condition module are placed in the vitriol chamber; Described complex detector is connected with multiple tracks data collection and analysis module through the signal condition Shaping Module; Described microprocessor is connected with human-machine interface module with multiple tracks data collection and analysis module respectively, and microprocessor links to each other with computing machine by USB interface.
3. according to claim 1 based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: described complex detector is that NaI (Tl) crystal, plastic scintillant, this several sections of photomultiplier and sample box are linked to each other with a central shaft.
4. according to claim 1 based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: described complex detector structure is divided into two parts up and down, wherein the first half is made up of NaI (Tl) detector and signal condition module, and the signal condition Shaping Module is positioned at the detector the top.The latter half is sample box and detection α, Beta-ray scintillation detector, and sample box up.
5. according to claim 1 based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: in the described structure, the NaI of complex detector the first half (Tl) detector, signal condition module and central shaft are fixed together, and be stiff.The sample box of complex detector the latter half is fixed together with detection α, Beta-ray scintillation detector.Whole the latter half of complex detector is movable, can freely dismantle.
6. according to claim 1 based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: described instrument has two probes to be combined into a combined probe, and multiple tracks data acquisition and analysis module have only one.
7. according to claim 1 based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: the complex detector of described instrument and signal condition module are placed in the vitriol chamber, the fuselage that multichannel pulse scope-analyzer, multiple tracks data collection and analysis, low-power dissipation power supply management and human-machine interface module constitute is outside vitriol chamber, and both link to each other by the communication cable line.
8. according to claim 1 based on the complex detector multifunctional rare earth product radioactivity detecting instrument, it is characterized in that: this instrument can be measured α, β total amount and gamma spectrum simultaneously, by one-shot measurement, can provide the content of total amount, radium, uranium, thorium, potassium and the radioelement of rare earth own of α, β.
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| CN 201010127006 CN101858985A (en) | 2010-03-18 | 2010-03-18 | Multifunctional rare earth product radioactivity detecting instrument based on composite detector |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455430A (en) * | 2010-10-27 | 2012-05-16 | 成都理工大学 | Digital forming method for nuclear pulse signals |
| CN102841369A (en) * | 2012-09-06 | 2012-12-26 | 东南大学 | Environment piezocone penetration test probe used for detecting soil mass radioactive intensity in situ |
| CN103163159A (en) * | 2011-12-15 | 2013-06-19 | 中国核动力研究设计院 | Sample analysis apparatus for efficiency test of iodine absorber in nuclear power station |
| CN105824040A (en) * | 2016-03-17 | 2016-08-03 | 福建师范大学 | System and method of automatically detecting and alarming tap water radiation pollution |
| CN106125125A (en) * | 2016-06-13 | 2016-11-16 | 成都新核泰科科技有限公司 | Dense ionization radiation field is met an urgent need robot |
| CN106291653A (en) * | 2015-06-29 | 2017-01-04 | 中国辐射防护研究院 | The total α of fluid, the continuous on-line monitoring method of Total Beta Radioactivity and device |
| CN106569250A (en) * | 2016-10-21 | 2017-04-19 | 核工业北京化工冶金研究院 | Device for online measurement of uranium concentration of leach slurry of uranium ore, and application method |
| CN108693551A (en) * | 2018-04-16 | 2018-10-23 | 核工业北京化工冶金研究院 | A kind of probe and device for the monitoring of uranium ore grade |
| CN108802792A (en) * | 2017-04-28 | 2018-11-13 | 北京市射线应用研究中心 | The measuring device and method of radioactivity inert gas |
| CN109580664A (en) * | 2018-12-25 | 2019-04-05 | 中核四0四有限公司 | A kind of high concentration uranium measuring instrument |
| CN109581463A (en) * | 2018-12-25 | 2019-04-05 | 中核四0四有限公司 | The measuring device of americium and caesium in a kind of post-processing feed liquid |
| CN110018512A (en) * | 2019-02-21 | 2019-07-16 | 上海怡星机电设备有限公司 | A kind of portable multi-function activity meter |
| CN110044938A (en) * | 2019-06-05 | 2019-07-23 | 成都理工大学 | A kind of uranium concentration measuring device of spentnuclear fuel extract liquor |
| CN112485820A (en) * | 2020-11-19 | 2021-03-12 | 中国核动力研究设计院 | Intelligent multi-channel processing display unit suitable for radiation monitoring system |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455430A (en) * | 2010-10-27 | 2012-05-16 | 成都理工大学 | Digital forming method for nuclear pulse signals |
| CN103163159A (en) * | 2011-12-15 | 2013-06-19 | 中国核动力研究设计院 | Sample analysis apparatus for efficiency test of iodine absorber in nuclear power station |
| CN102841369A (en) * | 2012-09-06 | 2012-12-26 | 东南大学 | Environment piezocone penetration test probe used for detecting soil mass radioactive intensity in situ |
| CN102841369B (en) * | 2012-09-06 | 2015-04-15 | 东南大学 | Environment piezocone penetration test probe used for detecting soil mass radioactive intensity in situ |
| CN106291653A (en) * | 2015-06-29 | 2017-01-04 | 中国辐射防护研究院 | The total α of fluid, the continuous on-line monitoring method of Total Beta Radioactivity and device |
| CN106291653B (en) * | 2015-06-29 | 2019-04-23 | 中国辐射防护研究院 | The total α of fluid, the continuous on-line monitoring method of Total Beta Radioactivity and device |
| CN105824040A (en) * | 2016-03-17 | 2016-08-03 | 福建师范大学 | System and method of automatically detecting and alarming tap water radiation pollution |
| CN106125125A (en) * | 2016-06-13 | 2016-11-16 | 成都新核泰科科技有限公司 | Dense ionization radiation field is met an urgent need robot |
| CN106569250B (en) * | 2016-10-21 | 2019-03-22 | 核工业北京化工冶金研究院 | A kind of online uranium mine leaches ore pulp uranium concentration measuring device and application method |
| CN106569250A (en) * | 2016-10-21 | 2017-04-19 | 核工业北京化工冶金研究院 | Device for online measurement of uranium concentration of leach slurry of uranium ore, and application method |
| CN108802792A (en) * | 2017-04-28 | 2018-11-13 | 北京市射线应用研究中心 | The measuring device and method of radioactivity inert gas |
| CN108802792B (en) * | 2017-04-28 | 2024-04-26 | 北京市射线应用研究中心有限公司 | Device and method for measuring radioactive inert gas |
| CN108693551A (en) * | 2018-04-16 | 2018-10-23 | 核工业北京化工冶金研究院 | A kind of probe and device for the monitoring of uranium ore grade |
| CN108693551B (en) * | 2018-04-16 | 2020-12-15 | 核工业北京化工冶金研究院 | Probe and device for monitoring grade of uranium ore |
| CN109580664A (en) * | 2018-12-25 | 2019-04-05 | 中核四0四有限公司 | A kind of high concentration uranium measuring instrument |
| CN109581463A (en) * | 2018-12-25 | 2019-04-05 | 中核四0四有限公司 | The measuring device of americium and caesium in a kind of post-processing feed liquid |
| CN109580664B (en) * | 2018-12-25 | 2021-11-16 | 中核四0四有限公司 | High concentration uranium measuring apparatu |
| CN110018512A (en) * | 2019-02-21 | 2019-07-16 | 上海怡星机电设备有限公司 | A kind of portable multi-function activity meter |
| CN110044938A (en) * | 2019-06-05 | 2019-07-23 | 成都理工大学 | A kind of uranium concentration measuring device of spentnuclear fuel extract liquor |
| CN112485820A (en) * | 2020-11-19 | 2021-03-12 | 中国核动力研究设计院 | Intelligent multi-channel processing display unit suitable for radiation monitoring system |
| CN112485820B (en) * | 2020-11-19 | 2023-04-07 | 中国核动力研究设计院 | Intelligent multi-channel processing display unit suitable for radiation monitoring system |
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Application publication date: 20101013 |