FR3110253B1 - Procédé d'estimation et système de surveillance de la concentration de plutonium dans un système d'uranium et de plutonium en solution sur la base du comptage des coïncidences neutroniques - Google Patents

Procédé d'estimation et système de surveillance de la concentration de plutonium dans un système d'uranium et de plutonium en solution sur la base du comptage des coïncidences neutroniques Download PDF

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Publication number
FR3110253B1
FR3110253B1 FR2105027A FR2105027A FR3110253B1 FR 3110253 B1 FR3110253 B1 FR 3110253B1 FR 2105027 A FR2105027 A FR 2105027A FR 2105027 A FR2105027 A FR 2105027A FR 3110253 B1 FR3110253 B1 FR 3110253B1
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Prior art keywords
plutonium
neutron
uranium
concentration
estimating
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FR2105027A
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FR3110253A1 (fr
Inventor
Zeng Shao
Haifeng Yang
Yuan Yuan
Zifan Zhao
Miao Yu
Tian Chen
Xuan Yi
Xiaoli Hu;
Yunlong Li
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China Nuclear Power Engineering Co Ltd
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China Nuclear Power Engineering Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T3/00—Measuring neutron radiation
    • G01T3/001—Spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T3/00—Measuring neutron radiation
    • 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
    • G01T1/17—Circuit arrangements not adapted to a particular type of detector
    • G01T1/172—Circuit arrangements not adapted to a particular type of detector with coincidence circuit arrangements
    • 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
    • G01T1/17—Circuit arrangements not adapted to a particular type of detector
    • G01T1/178—Circuit arrangements not adapted to a particular type of detector for measuring specific activity in the presence of other radioactive substances, e.g. natural, in the air or in liquids such as rain water
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T3/00—Measuring neutron radiation
    • G01T3/008—Measuring neutron radiation using an ionisation chamber filled with a gas, liquid or solid, e.g. frozen liquid, dielectric
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
    • G01V5/281—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects detecting special nuclear material [SNM], e.g. Uranium-235, Uranium-233 or Plutonium-239
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Measurement Of Radiation (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

La présente invention fournit un procédé d'estimation et un système de surveillance d'une concentration de plutonium dans un système d'uranium et de plutonium en solution sur la base du comptage des coïncidences neutroniques. En effectuant des corrections de l'effet d'absorption de la multiplication des neutrons, de la différence de spectre entre des neutrons sources (α, n) et des neutrons sources de fission spontanée, et de la différence de rendement de détection entre des neutrons sources de fission induite et des neutrons sources de fission spontanée, sur un système d'équations d'un modèle ponctuel, les résultats calculés du comptage des coïncidences neutroniques par un système d'équations d'un modèle ponctuel amélioré permettent de représenter avec précision un résultat de mesure du comptage des coïncidences neutroniques d'un système de détection de neutrons à l'extérieur du système d'uranium et de plutonium en solution, estimant ainsi avec précision la concentration de plutonium dans le système d'uranium et de plutonium en solution. [FIG. 3]
FR2105027A 2020-05-15 2021-05-12 Procédé d'estimation et système de surveillance de la concentration de plutonium dans un système d'uranium et de plutonium en solution sur la base du comptage des coïncidences neutroniques Active FR3110253B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010411599.3A CN111751866B (zh) 2020-05-15 2020-05-15 基于中子符合计数的溶液系统钚浓度估算方法及监测系统
CN202010411599.3 2020-05-15

Publications (2)

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FR3110253A1 FR3110253A1 (fr) 2021-11-19
FR3110253B1 true FR3110253B1 (fr) 2022-08-05

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FR2105027A Active FR3110253B1 (fr) 2020-05-15 2021-05-12 Procédé d'estimation et système de surveillance de la concentration de plutonium dans un système d'uranium et de plutonium en solution sur la base du comptage des coïncidences neutroniques

Country Status (4)

Country Link
JP (1) JP7083421B2 (fr)
CN (1) CN111751866B (fr)
FR (1) FR3110253B1 (fr)
GB (1) GB2600505B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112415568B (zh) * 2020-10-30 2023-09-15 湖北锐世数字医学影像科技有限公司 能量校正方法、装置、设备、系统及计算机可读存储介质
CN113791439A (zh) * 2021-07-07 2021-12-14 中国核电工程有限公司 一种通过测量中子得到钆浓度的在线监测方法及系统
CN113866812B (zh) * 2021-08-17 2024-04-12 中国核电工程有限公司 一种同时测量多个设备内钚含量的方法
CN113777660B (zh) * 2021-09-15 2023-10-20 核工业航测遥感中心 能谱比法大气氡修正参数求取方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8413236D0 (en) * 1984-05-23 1984-06-27 British Nuclear Fuels Plc Plutonium concentration measurement
JP3524203B2 (ja) * 1995-04-07 2004-05-10 株式会社東芝 中性子モニタ装置及び使用済核燃料の臨界管理方法
GB9810433D0 (en) * 1997-12-12 1998-07-15 British Nuclear Fuels Plc Improvements in and relating to monitoring
US20020163987A1 (en) * 1997-12-12 2002-11-07 British Nuclear Fuels Plc Monitoring a sample containing a neutron source
CN104678425B (zh) * 2015-02-02 2017-03-22 中国原子能科学研究院 一种基于液体闪烁探测器的快中子多重性测量分析方法
CN107092028A (zh) * 2017-05-25 2017-08-25 中国人民解放军火箭军工程大学 一种密闭容器核材料质量的计算方法

Also Published As

Publication number Publication date
CN111751866A (zh) 2020-10-09
GB2600505B (en) 2024-06-19
FR3110253A1 (fr) 2021-11-19
JP7083421B2 (ja) 2022-06-10
CN111751866B (zh) 2023-12-22
GB2600505A (en) 2022-05-04
JP2021179435A (ja) 2021-11-18

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