WO2011049366A3 - System and method for detecting defects of nuclear reactor - Google Patents

System and method for detecting defects of nuclear reactor Download PDF

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Publication number
WO2011049366A3
WO2011049366A3 PCT/KR2010/007195 KR2010007195W WO2011049366A3 WO 2011049366 A3 WO2011049366 A3 WO 2011049366A3 KR 2010007195 W KR2010007195 W KR 2010007195W WO 2011049366 A3 WO2011049366 A3 WO 2011049366A3
Authority
WO
WIPO (PCT)
Prior art keywords
defects
detecting
nuclear reactor
boric acid
acid precipitate
Prior art date
Application number
PCT/KR2010/007195
Other languages
French (fr)
Korean (ko)
Other versions
WO2011049366A2 (en
Inventor
김용일
윤동진
이승석
Original Assignee
한국표준과학연구원
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 한국표준과학연구원 filed Critical 한국표준과학연구원
Publication of WO2011049366A2 publication Critical patent/WO2011049366A2/en
Publication of WO2011049366A3 publication Critical patent/WO2011049366A3/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/003—Remote inspection of vessels, e.g. pressure vessels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
    • G01N21/718—Laser microanalysis, i.e. with formation of sample plasma
    • 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

Abstract

The present invention relates to a system and a method for detecting defects of a nuclear reactor. The system and the method for detecting the defects of the nuclear reactor can detect micro-defects in the early stage by intensively monitoring atomic spectral lines of a preset scanning range through a laser induced plasma spectroscopy and detecting a boric acid precipitate, thereby preventing a radiation leakage or a reactor explosion beforehand which can happen in a nuclear reactor. The present invention can effectively detect the boric acid precipitate in ppm level through a predetermined value without a pre-process for a target area to be detected, and can effectively recognize the micro-defects in the early stage by detecting the boric acid precipitate in a remote place using a noncontact method.
PCT/KR2010/007195 2009-10-21 2010-10-20 System and method for detecting defects of nuclear reactor WO2011049366A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090100232A KR101110741B1 (en) 2009-10-21 2009-10-21 Crack detecting method and system for nuclear reactor
KR10-2009-0100232 2009-10-21

Publications (2)

Publication Number Publication Date
WO2011049366A2 WO2011049366A2 (en) 2011-04-28
WO2011049366A3 true WO2011049366A3 (en) 2011-09-15

Family

ID=43900822

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/007195 WO2011049366A2 (en) 2009-10-21 2010-10-20 System and method for detecting defects of nuclear reactor

Country Status (2)

Country Link
KR (1) KR101110741B1 (en)
WO (1) WO2011049366A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101423988B1 (en) * 2012-12-13 2014-08-01 광주과학기술원 Quantitative analysis method for mesuring element in sample using laser plasma spectrum
CN111292862B (en) * 2020-03-27 2021-12-17 江苏核电有限公司 Emergency reactor shutdown method based on signal state of safety important instrument of nuclear power plant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020033053A (en) * 2000-10-27 2002-05-04 람세이 코우트 Flow condition monitor
JP2004226252A (en) * 2003-01-23 2004-08-12 Toshiba Corp Element concentration measuring instrument
KR20070006610A (en) * 2005-07-07 2007-01-11 가부시끼가이샤 도시바 Laser-based maintenance apparatus
KR20070077251A (en) * 2006-01-23 2007-07-26 한국원자력연구원 Laser-ultrasonic apparatus and method for extracting information of surface-breaking crack

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4755061B2 (en) 2006-10-13 2011-08-24 株式会社日立製作所 Nuclear facility leakage monitoring system and leakage monitoring method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020033053A (en) * 2000-10-27 2002-05-04 람세이 코우트 Flow condition monitor
JP2004226252A (en) * 2003-01-23 2004-08-12 Toshiba Corp Element concentration measuring instrument
KR20070006610A (en) * 2005-07-07 2007-01-11 가부시끼가이샤 도시바 Laser-based maintenance apparatus
KR20070077251A (en) * 2006-01-23 2007-07-26 한국원자력연구원 Laser-ultrasonic apparatus and method for extracting information of surface-breaking crack

Also Published As

Publication number Publication date
KR20110043209A (en) 2011-04-27
WO2011049366A2 (en) 2011-04-28
KR101110741B1 (en) 2012-02-24

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