CN107358983A - The method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence - Google Patents
The method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence Download PDFInfo
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- CN107358983A CN107358983A CN201710594049.8A CN201710594049A CN107358983A CN 107358983 A CN107358983 A CN 107358983A CN 201710594049 A CN201710594049 A CN 201710594049A CN 107358983 A CN107358983 A CN 107358983A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a kind of method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence, it comprises the following steps：The magnetic parameter at S1, the in real time a certain monitoring position of the reactor pressure vessel steel of monitoring nuclear power station during normal operation, magnetic parameter is magnetic susceptibility χ, remanent magnetization MRWith coercivity HCIn any one；S2, the neutron irradiation damage fluence Φ for calculating based on the magnetic parameter measured in real time reactor pressure vessel.For prior art, the present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence method can in real time, follow-on test nuclear power station run during reactor pressure vessel steel magnetic parameter, the neutron spoke damage fluence data for obtaining reactor pressure vessel steel are calculated in real time, and can monitor the neutron irradiation damage fluence of the multiple positions of reactor pressure vessel simultaneously.
Description
Technical field
The invention belongs to nuclear power field, it is more particularly related to a kind of monitoring nuclear power plant reactor pressure vessel
The method of neutron irradiation damage fluence.
Background technology
Reactor pressure vessel is one of large scale equipment the most key in nuclear island of nuclear power station, and major function is containing and branch
Hold the steel pressure resistant vessel of reactor core nuclear fuel assembly, control assembly, in-pile component and reactor coolant.Its long service is in strong
Irradiation, high temperature, hyperbaric environment, wherein, neutron irradiation damage (is embodied in during reactor pressure vessel steel radiation embrittlement
Intensity rise, toughness decline) it is one of its dominant failure mode.
In order to ensure the security of reactor pressure vessel operation, it is normal that its irradiation damage fluence, which is monitored with evaluation,
One of method.Specific implementation step is as follows：(1) before the operation of nuclear power station first fuel loading, in reactor pressure vessel
4 to 6 irradiation monitoring pipes are installed in portion, and fission dose detector is loaded in every irradiation monitoring pipe, generally includes U238And Np237Two
Detecting element, is then encapsulated into titanium box, titanium box is reloaded into boron nitride box, then nitrogen by kind fission dosage detecting element respectively
Change boron box again integrally to load in irradiation monitoring pipe.(2) irradiation monitoring pipe formulated according to irradiation outline extracts plan, utilizes
Nuclear power station reloads the chance of maintenance, irradiation monitoring pipe is periodically extracted from reactor pressure vessel, then according to radiation protection
It is required that to the hot cell mechanism of fixed point, fission dose detector is taken out in cutting dissection, then right in hot cell for long-distance transport after packaging
Analytical test is carried out in change of its composition etc., and then calculates and obtain the neutron irradiation damage note that fission dose detector is received
Amount.(3) the neutron irradiation damage fluence of reactor pressure vessel body is obtained according to the lead factor of irradiation monitoring pipe, conversion,
And then Subsequent secure appraisal is carried out in the operation to reactor pressure vessel.
The shortcomings that existing method, is summarized as follows：
1) fission dose detector (U238And Np237) belonging to radioactive source, its production, transport, sale etc. are required to professional money
Matter, purchase cost is very high, subsequent transportation, according to etc. it is also extremely troublesome；
2) the irradiation damage fluence of reactor pressure vessel body can not be directly obtained, need to be converted, deposited by lead factor
In certain error, when lead factor is larger, the error is further obvious, the representative of the neutron irradiation damage fluence obtained at that time
Property is poor；
3) due to the quantity of irradiation monitoring pipe it is very limited (generally only have 4~6, and must first fuel loading operation before
Disposable loading finishes, and prior art is supplemented installing irradiation monitoring pipe, following nuclear power after can not realizing operation a period of time
The problem is further prominent when station is lengthened the life), corresponding dose detector quantity of fissioning also only has 4~6, therefore, passes through this side
Method can not continuously obtain the neutron irradiation damage fluence of reactor pressure vessel steel；Simultaneously because irradiation monitoring pipe extract, transport,
The work such as cutting dissection, fission dose detector assay at least needed for 1 year, and reactor pressure is obtained by this method
There is also obvious hysteresis quality in time for the neutron irradiation damage fluence of container steel；
4) fission dose detector belongs to disposable products, and has stronger radioactivity after use, while is analyzing
Chemical examination link also produces a large amount of radwastes, and follow-up three-protection design amount is larger, and cost is higher；
5) above method is only capable of monitoring the neutron irradiation damage fluence in reactor pressure vessel reactor core area on the whole, does not have
Standby other parts of monitoring reactor pressure vessel, especially the irradiation damage fluence of ad-hoc location.
In view of this, it is necessory to provide it is a kind of can in real time, online, follow-on test monitoring nuclear power plant reactor pressure holds
The method of device neutron irradiation damage fluence.
The content of the invention
The goal of the invention of the present invention is：Overcome the deficiencies in the prior art, there is provided one kind can in real time, online, follow-on test
Monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence method.
Lot of experiments find, reactor pressure vessel steel under arms when radiation embrittlement during, its magnetism of material
The changing rule of energy parameter has preferable relevance with its neutron irradiation damage fluence, by monitoring reactor pressure vessel steel magnetic
The change of performance parameter, its neutron irradiation damage fluence can be obtained.
In order to realize foregoing invention purpose, the present invention provides a kind of monitoring nuclear power plant reactor pressure vessel neutron irradiation damage
Hinder the method for fluence, it comprises the following steps：
The magnetic property ginseng at S1, the in real time a certain monitoring position of the reactor pressure vessel steel of monitoring nuclear power station during normal operation
Number, the magnetic parameter is magnetic susceptibility χ, remanent magnetization MRWith coercivity HCIn any one；
S2, the neutron irradiation damage fluence Φ for calculating based on the magnetic parameter measured in real time reactor pressure vessel.
The a kind of of method as present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence improves, institute
Neutron irradiation damage fluence Φ is stated as analysis input parameter, for its structure during reactor pressure vessel irradiation damage
Integrality carries out security evaluation or life prediction.
The a kind of of method as present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence improves, institute
When to state magnetic parameter be magnetic susceptibility χ, neutron irradiation damage fluence Φ is calculated based on the magnetic susceptibility χ measured in real time, shows as public affairs
Formula (1)：
Φ=c1·㏑(b1-a1·χ) (1)
Wherein, a1Span be 0.75-1.38；b1Span be 8.78-16.75；c1Span be
0.042-0.17。
The a kind of of method as present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence improves, institute
State a1、b1And c1The influence factor of value includes the Microstructure characteristics and nuclear power station fortune of reactor pressure vessel steel original state
Pile neutron irradiation field power spectrum between the departure date.
The a kind of of method as present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence improves, institute
It is remanent magnetization M to state magnetic parameterRWhen, based on the remanent magnetization M measured in real timeRCalculate neutron irradiation damage note
Φ is measured, shows as formula (2)：
Φ=b2-a2·MR (2)
Wherein, a2Span be 0.087-0.23；b2Span be 0.12-0.31.
The a kind of of method as present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence improves, institute
State a2And b2The influence factor of value includes Microstructure characteristics and the nuclear power station runtime of reactor pressure vessel steel original state
Between pile neutron irradiation field power spectrum.
The a kind of of method as present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence improves, institute
It is coercivity H to state magnetic parameterCWhen, based on the coercivity H measured in real timeCNeutron irradiation damage fluence Φ is calculated, shows as public affairs
Formula (3)：
Φ=D-a3·HC+b3·(HC)2-c3·(HC)3 (3)
Wherein, a3Span be 1.79-3.21；b3Span be 0.19-0.41；c3Span be
0.007-0.19, D span are 5.64-9.23.
The a kind of of method as present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence improves, institute
State D, a3、b3And c3The influence factor of value includes the Microstructure characteristics and nuclear power station of reactor pressure vessel steel original state
Pile neutron irradiation field power spectrum during operation.
Relative to prior art, the method tool of present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence
There are following advantageous effects：
1) can in real time, during online, follow-on test nuclear power station operation reactor pressure vessel steel magnetic parameter, and in fact
When calculate obtain reactor pressure vessel steel neutron spoke damage fluence data；
2) the neutron irradiation damage fluence of the multiple positions of reactor pressure vessel can be monitored simultaneously；
3) because the magnetism testing of reactor pressure vessel steel is lossless, prolong in nuclear power station full phase in longevity, including future
Longevity can test acquisition data infinitely during running；
4) test equipment and operation do not need special radiological safety protection requirement, and to equipment free surrounding space substantially without wanting
Ask, cost is cheap, security is preferable, does not produce radwaste, basic three wastes process demand especially.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, to present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage
The method for hindering fluence is described in detail, wherein：
Fig. 1 is the method and step flow chart of present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence.
Functional relations of the Fig. 2 between reactor pressure vessel steel reactor core section position magnetic susceptibility and neutron irradiation damage fluence
Figure.
Letters of the Fig. 3 between reactor pressure vessel steel reactor core section position remanent magnetization and neutron irradiation damage fluence
Number graph of a relation.
Functional relations of the Fig. 4 between reactor pressure vessel steel reactor core section position coercivity and neutron irradiation damage fluence
Figure.
Embodiment
In order that goal of the invention, technical scheme and its technique effect of the present invention become apparent from, below in conjunction with accompanying drawing and tool
Body embodiment, the present invention will be described in further detail.It should be appreciated that the specific embodiment party described in this specification
Formula is not intended to limit the present invention just for the sake of explaining the present invention.
It refer to shown in Fig. 1, the invention provides one kind monitoring nuclear power plant reactor pressure vessel neutron irradiation damage note
The method of amount, it comprises the following steps：
The magnetic property ginseng at S1, the in real time a certain monitoring position of the reactor pressure vessel steel of monitoring nuclear power station during normal operation
Number, magnetic parameter is magnetic susceptibility χ, remanent magnetization MRWith coercivity HCIn any one；
S2, the neutron irradiation damage fluence Φ for calculating based on the magnetic parameter measured in real time reactor pressure vessel.
Reactor pressure vessel steel under arms when radiation embrittlement during, magnetic susceptibility χ, residue in magnetism of material energy parameter
Magnetization MRWith coercivity HCAll there is preferable relevance with its neutron irradiation damage fluence respectively, therefore, can be by monitoring magnetic
Rate χ, remanent magnetization MRWith coercivity HCIn any one parameter obtain its neutron irradiation damage fluence Φ.
When the magnetic parameter monitored in real time is magnetic susceptibility χ, the letter between magnetic susceptibility χ and neutron irradiation damage fluence Φ
Number relation is formula (1),
Φ=c1·㏑(b1-a1·χ) (1)
Wherein, a1Span be 0.75-1.38；b1Span be 8.78-16.75；c1Span be
0.042-0.17。a1、b1And c1Value can by the grain size of reactor pressure vessel original state, Types of Dislocations, quantity,
The influence of the factor such as pile neutron irradiation field power spectrum during second distributed mutually feature and nuclear power station are run.For specific core
Power station and reactor pressure vessel, also it can be determined or be repaiied by traditional irradiation fission detector test data
Just.
According to the magnetic susceptibility χ numerical value measured in real time, neutron irradiation damage fluence Φ can be calculated, and neutron irradiation damage
Fluence Φ is as analysis input parameter, for carrying out safety to its structural intergrity during reactor pressure vessel irradiation damage
Assessment or life prediction.
Magnetic parameter is alternatively chosn to remanent magnetization MR, remanent magnetization MRWith neutron irradiation damage fluence Φ
Functional relation be formula (2)：
Φ=b2-a2·MR (2)
Wherein, a2Span be 0.087-0.23；b2Span be 0.12-0.31.Likewise, a2And b2's
Value also can be by the grain size of reactor pressure vessel original state, Types of Dislocations, quantity, the second distributed mutually feature and core
The influence of the factor such as pile neutron irradiation field power spectrum during power station is run.Hold for specific nuclear power station and reactor pressure
Device, also it can be determined or be corrected by traditional irradiation fission detector test data.
When magnetic parameter selection is coercivity HCWhen, coercivity HCFunctional relation with neutron irradiation damage fluence Φ is
Formula (3)：
Φ=D-a3·HC+b3·(HC)2-c3·(HC)3 (3)
Wherein, a3Span be 1.79-3.21；b3Span be 0.19-0.41；c3Span be
0.007-0.19, D span are 5.64-9.23.
Likewise, D, a3、b3And c3Value also can be by reactor pressure vessel original state grain size, dislocation class
The influence of the factor such as pile neutron irradiation field power spectrum during type, quantity, the second distributed mutually feature and nuclear power station are run.For
Specific nuclear power station and reactor pressure vessel, can also be determined by traditional irradiation fission detector test data
Or amendment.
Using the neutron irradiation damage fluence Φ of above-mentioned acquisition as analysis input parameter, for carrying out reactor pressure vessel
The structural intergrity safety evaluation of irradiation damage, life prediction etc..Specific method is identical with traditional irradiation analysis method.
Embodiment 1
By taking the magnetic parameter that particular point in time monitors reactor pressure vessel steel reactor core section position in real time as an example.
When particular point in time monitoring magnetic parameter be magnetic susceptibility χ=3.290, neutron can be calculated according to formula (1)
Irradiation damage fluence Φ.
Consider the Microstructure characteristics of reactor pressure vessel steel original state and during nuclear power station is run in reactor
After the influence factor of sub- irradiation field power spectrum, a in formula (1) is drawn1、b1And c1Value be respectively 1.07,13.15 and 0.07, then
Neutron irradiation damage fluence Φ calculating process is as follows：
Φ=0.07ln (13.15-1.07 χ)=0.07ln (13.15-1.07 × 3.290)=0.15860dpa
When magnetic parameter is remanent magnetization MR, remanent magnetization M that same time point measuresR=0.24emu/
G, neutron irradiation damage fluence Φ can be calculated according to formula (2).
After considering various influence factors, in formula (2), a2And b2Value be respectively 0.14 and 0.19, then neutron irradiation damages
The calculating process for hindering fluence Φ is as follows：
Φ=0.19-0.14MR=0.19-0.14 × 0.24=0.15640dpa
When magnetic parameter is coercivity HC, coercivity H that same time point measuresC=7.1Oe, it can be counted according to formula (3)
Calculate neutron irradiation damage fluence Φ.
After considering various influence factors, in formula (3), D, a3、b3And c3Value be respectively 7.65,2.56,0.29 and
0.01, then neutron irradiation damage fluence Φ calculating process is as follows：
Φ=7.65-2.56HC+0.29(HC)2-0.01(HC)3=0.15304dpa
Magnetic susceptibility χ, remanent magnetization M in the present embodimentRWith coercivity HCRespectively with neutron irradiation damage fluence Φ letter
Number graph of a relation is as shown in Figure 2, Figure 3 and Figure 4.
Using the neutron irradiation damage fluence Φ calculated as analysis input parameter, to reactor pressure vessel irradiation damage
During structural intergrity carry out security evaluation or life prediction；Detailed process and traditional irradiation analysis method phase
Together.
Comparative example 1
For the validity of the method for checking present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence, take
Traditional reactor pressure vessel with identical irradiation damage degree (referring generally to accumulate fluence with identical neutron irradiation)
Irradiation control sample carries out destructive mechanical property test, surveys and obtains the neutron irradiation damage fluence Φ at reactor core section position.
The numerical value for the neutron irradiation damage fluence Φ that 1 embodiment of table, 1 different magnetic parameters are drawn with comparative example 1
It can be seen from Table 1 that different magnetic parameter (magnetic susceptibility χ, remanent magnetization M are respectively adopted in embodiment 1R
With coercivity HC) the neutron irradiation damage fluence Φ at the reactor core section position numerical value that is calculated with the measured value of comparative example 1 very
It is close；Deviation within the acceptable range, will not be brought to the safety evaluation of subsequent reactions core pressure vessel irradiation damage
Influence.
Therefore, the method for present invention monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence can be used to replace passing
The irradiation analysis method of system, not only method is simple, and data are accurate, and can realize that real-time online is assessed, simultaneous reactions heap
Magnetic susceptibility, remanent magnetization and the coercivity test of pressure vessel steel are lossless, therefore in the nuclear power station full phase in longevity and not
Acquisition data can be tested infinitely during operation of lengthening the life.
Can be seen that with reference to above detailed description of the present invention at least has following relative to prior art, the present invention
Advantageous effects：
1) can in real time, during online, follow-on test nuclear power station operation reactor pressure vessel steel magnetic parameter, and in fact
When calculate obtain reactor pressure vessel steel neutron spoke damage fluence data；
2) the neutron irradiation damage fluence of the multiple positions of reactor pressure vessel can be monitored simultaneously；
3) because the magnetism testing of reactor pressure vessel steel is lossless, therefore in the nuclear power station full phase in longevity, including not
Acquisition data can be tested infinitely during operation of lengthening the life；
4) test equipment and operation do not need special radiological safety protection requirement, and to equipment free surrounding space substantially without wanting
Ask, cost is cheap, security is preferable, does not produce radwaste, basic three wastes process demand especially.
According to above-mentioned principle, the present invention can also carry out appropriate change and modification to above-mentioned embodiment.Therefore, this hair
It is bright to be not limited to embodiment disclosed and described above, some modifications and changes of the present invention should also be as falling into this
In the scope of the claims of invention.In addition, although used some specific terms in this specification, but these terms
Merely for convenience of description, any restrictions are not formed to the present invention.
Claims (8)
- A kind of 1. method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence, it is characterised in that including following Step：The magnetic parameter at S1, the in real time a certain monitoring position of the reactor pressure vessel steel of monitoring nuclear power station during normal operation, The magnetic parameter is magnetic susceptibility χ, remanent magnetization MRWith coercivity HCIn any one；S2, the neutron irradiation damage fluence Φ for calculating based on the magnetic parameter measured in real time reactor pressure vessel.
- 2. the method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence according to claim 1, it is special Sign is that the neutron irradiation damage fluence Φ is as analysis input parameter, for reactor pressure vessel irradiation damage mistake Its structural intergrity carries out security evaluation or life prediction in journey.
- 3. the method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence according to claim 1, it is special Sign is, when the magnetic parameter is magnetic susceptibility χ, neutron irradiation damage fluence Φ is calculated based on the magnetic susceptibility χ measured in real time, Show as formula (1)：Φ=c1·㏑(b1-a1·χ) (1)Wherein, a1Span be 0.75-1.38, b1Span be 8.78-16.75, c1Span be 0.042- 0.17。
- 4. the method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence according to claim 3, it is special Sign is, a1、b1And c1The Microstructure characteristics of the influence factor of value including reactor pressure vessel steel original state and Pile neutron irradiation field power spectrum during nuclear power station is run.
- 5. the method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence according to claim 1, it is special Sign is that the magnetic parameter is remanent magnetization MRWhen, based on the remanent magnetization M measured in real timeRCalculate neutron spoke According to damage fluence Φ, formula (2) is shown as：Φ=b2-a2·MR (2)Wherein, a2Span be 0.087-0.23, b2Span be 0.12-0.31.
- 6. the method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence according to claim 5, it is special Sign is, a2And b2The influence factor of value includes the Microstructure characteristics and core of reactor pressure vessel steel original state Pile neutron irradiation field power spectrum during power station is run.
- 7. the method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence according to claim 1, it is special Sign is that the magnetic parameter is coercivity HCWhen, based on the coercivity H measured in real timeCCalculate neutron irradiation damage fluence Φ, show as formula (3)：Φ=D-a3·HC+b3·(HC)2-c3·(HC)3 (3)Wherein, a3Span be 1.79-3.21, b3Span be 0.19-0.41, c3Span be 0.007- 0.19, D span is 5.64-9.23.
- 8. the method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence according to claim 7, it is special Sign is, described D, a3、b3And c3The influence factor of value includes the Microstructure characteristics of reactor pressure vessel steel original state Pile neutron irradiation field power spectrum during being run with nuclear power station.
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| CN201710594049.8A CN107358983B (en) | 2017-07-20 | 2017-07-20 | The method for monitoring nuclear power plant reactor pressure vessel neutron irradiation damage fluence |
| GB1917961.3A GB2577425B8 (en) | 2017-05-09 | 2017-12-15 | Non-destructive assessment method for radiation damage of reactor pressure vessel in nuclear power plant |
| PCT/CN2017/116357 WO2018205607A1 (en) | 2017-05-09 | 2017-12-15 | Non-destructive assessment method for radiation damage of reactor pressure vessel in nuclear power plant |
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| CN114323945A (en) * | 2021-12-29 | 2022-04-12 | 宁波市特种设备检验研究院 | Pressure vessel safety rapid determination method based on coercive force |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205607A1 (en) * | 2017-05-09 | 2018-11-15 | 中广核工程有限公司 | Non-destructive assessment method for radiation damage of reactor pressure vessel in nuclear power plant |
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| CN109817356A (en) * | 2019-01-28 | 2019-05-28 | 中广核工程有限公司 | A kind of method and apparatus based on magnetization function parameter monitoring RPV neutron irradiation damage |
| CN109817357A (en) * | 2019-01-28 | 2019-05-28 | 中广核工程有限公司 | Method and apparatus based on magnetization function assessment reactor pressure vessel irradiation damage |
| CN109817357B (en) * | 2019-01-28 | 2020-07-31 | 中广核工程有限公司 | Method and device for evaluating radiation damage of reactor pressure vessel based on magnetization work |
| CN109817356B (en) * | 2019-01-28 | 2020-08-04 | 中广核工程有限公司 | Method and device for monitoring RPV neutron irradiation damage based on magnetization work parameters |
| CN110990999A (en) * | 2019-10-31 | 2020-04-10 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Neutron tube service life testing method and device, computer equipment and storage medium |
| CN110990999B (en) * | 2019-10-31 | 2023-05-23 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Neutron tube life test method, neutron tube life test device, computer equipment and storage medium |
| CN111816334A (en) * | 2020-07-20 | 2020-10-23 | 中国核动力研究设计院 | Irradiation monitoring tube |
| CN114323945A (en) * | 2021-12-29 | 2022-04-12 | 宁波市特种设备检验研究院 | Pressure vessel safety rapid determination method based on coercive force |
| CN114323945B (en) * | 2021-12-29 | 2023-09-12 | 宁波市特种设备检验研究院 | Pressure container safety rapid judging method based on coercive force |
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