Nuclear decommissioning yog ib qho ntawm cov txheej txheem kev xav tau tshaj plaws nyob rau hauv lub neej voj voog ntawm nuclear chaw. Tsis zoo li cov kev lag luam demolition los yog cov cuab yeej tshem tawm, decommissioning yuav tsum ceev faj dismantling, ua, thiab pov tseg ntawm cov qauv thiab cov ntaub ntawv uas tej zaum yuav muaj residual radioactive paug.
Qhov kev sib tw tsis yog tsuas yog tshem tawm cov txheej txheem qub kom nyab xeeb. Nws kuj tseem raug txheeb xyuas qhov teeb meem hluav taws xob tsis zoo uas yuav tsis pom, ua kom muaj kev tiv thaiv cov neeg ua haujlwm, tswj cov khoom siv hluav taws xob, thiab tswj xyuas kev tswj hwm nruj thoob plaws hauv txhua qhov haujlwm.
Raws li ntau lub chaw tsim hluav taws xob thoob ntiaj teb nkag mus rau cov nyiaj laus thiab kev tshem tawm cov theem, kev txhim kho hluav taws xob txhim khu kev qha tau dhau los ua qhov tseem ceeb rau kev nyab xeeb thiab ua haujlwm tau zoo.
Yog vim li cas Radiation Detection yog qhov tseem ceeb thaum lub sij hawm Nuclear Decommissioning
Thaum lub sijhawm ua haujlwm nuclear ib txwm, cov kev saib xyuas hluav taws xob feem ntau tau teeb tsa hauv qhov chaw zoo - tau hais tseg nrog cov txheej txheem kev khiav haujlwm.
Decommissioning yog txawv.
Qhov chaw ib puag ncig hloov pauv tsis tu ncua raws li cov cuab yeej raug tshem tawm, cov qauv raug qhib, thiab yav dhau los cov chaw nkag tsis tau raug nthuav tawm.
Tej zaum yuav muaj teeb meem hluav taws xob muaj nyob hauv:
Reactor Cheebtsam
Piping systems
Cua txias circuits
Containment structures
Cov chaw pov tseg
Activated hlau Cheebtsam
Cov kab mob tsis huv
Yog tias tsis muaj hluav taws xob kuaj pom tseeb, cov neeg ua haujlwm yuav ntsib cov hluav taws xob tsis txaus ntseeg lossis muaj kab mob sib kis thaum lub sijhawm ua haujlwm.
Qhov no ua rau kev saib xyuas hluav taws xob yog ib qho ntawm thawj thiab tseem ceeb tshaj plaws kev nyab xeeb ntawm kev tswj hwm hauv kev ua haujlwm decommissioning.
Lub Cim Radiation Challenges ntawm Decommissioning
Nuclear decommissioning tej yaam num feem ntau siv tau ntau xyoo thiab koom nrog ntau txhiab tus neeg ua haujlwm.
Tsis zoo li cov nroj tsuag niaj hnub ua haujlwm, cov xwm txheej hluav taws xob tuaj yeem hloov pauv txhua hnub.
Cov kev sib tw uas muaj xws li:
Tsis paub Radiation Conditions
Ntau lub tsev qub qub tau tsim los rau ntau xyoo dhau los. Cov ntaub ntawv yuav ua tsis tiav, tshwj xeeb tshaj yog rau cov chaw hloov kho thaum lub sijhawm ua haujlwm dhau los.
Ua ntej dismantling pib, pawg hluav taws xob yuav tsum ua cov kev tshawb fawb los txheeb xyuas:
Kev noj tshuaj ntau ntau
Tej thaj chaw muaj kab mob
Cov khoom siv hluav taws xob
Muaj peev xwm kub qhov chaw
Cov khoom siv hluav taws xob kuaj pom hluav taws xob tau yooj yim yog qhov tseem ceeb rau daim phiaj xwm no.
Hloov chaw ua haujlwm
Thaum lub sij hawm dismantling, phab ntsa raug tshem tawm, cov cuab yeej raug txiav sib nrug, thiab cov tshuab raug qhib.
Ib thaj chaw nyab xeeb yav dhau los tuaj yeem dhau los ua hluav taws xob-tswj thaj tsam hauv ib teev.
Cov neeg ua haujlwm tsis tuaj yeem tso siab rau cov ntaub ntawv keeb kwm lossis kev tshawb fawb yav dhau los.
Kev soj ntsuam tas mus li yuav tsum tau kuaj xyuas cov kev hloov pauv sai.
Ntau hom hluav taws xob
Decommissioning tej yaam num yuav koom nrog ntau hom hluav taws xob, xws li:
Gamma hluav taws xob los ntawm cov khoom siv hluav taws xob
Beta paug ntawm qhov chaw
Neutron hluav taws xob los ntawm reactor-cov ntaub ntawv ntsig txog
Tritium contamination nyob rau hauv tej yam systems
Ntau hom hluav taws xob sib txawv yuav tsum muaj cov cuab yeej tshawb nrhiav sib txawv.
Ib qho cuab yeej yuav tsis txaus rau txhua daim ntawv thov.
Radiation Detection Equipment siv nyob rau hauv decommissioning
Cov kev pab cuam decommissioning zoo feem ntau ua ke nrog ntau yam kev soj ntsuam technologies.
Portable Radiation Survey Meters
Portable cov ntsuas ntsuas yog cov cuab yeej siv ntau tshaj plaws thaum lub sij hawm rhuav tshem nuclear.
Lawv pab pawg tiv thaiv hluav taws xob ntsuas:
Ambient koob tshuaj
Gamma hluav taws xob teb
Radiation hloov thaum lub sij hawm dismantling
Cov cuab yeej no tso cai rau cov neeg ua haujlwm txiav txim siab tam sim ua ntej nkag mus lossis hloov chaw ua haujlwm.
Surface Contamination Monitors
Radioactive contamination yog ib qho kev txhawj xeeb loj thaum lub sij hawm decommissioning.
Kev kis kab mob tuaj yeem kis tau los ntawm:
Plua plav tiam
Txiav kev ua haujlwm
Khoom siv zog
Cov dej num tuav pov tseg
Surface contamination monitors pab txheeb xyuas cov xov tooj cua hauv:
Cov cuab yeej
Cov khoom siv nto
Pem teb
Cov khaub ncaws tiv thaiv
Kev tshawb pom ntxov tiv thaiv kom tsis txhob kis kab mob thoob plaws hauv lub chaw.
Electronic Personal Dosimeters
Kev tswj cov neeg ua haujlwm raug mob yog ib qho tseem ceeb tshaj plaws ntawm kev tshem tawm kev nyab xeeb.
Electronic Personal Dosimeters (EPDs) muab:
Tiag -kev tshuaj xyuas lub sijhawm
koob tshuaj - tus nqi qhia
Tswb muaj nuj nqi
Cov ntaub ntawv raug
Qhov no tseem ceeb tshwj xeeb tshaj yog thaum cov neeg ua haujlwm nkag mus rau thaj chaw uas muaj hluav taws xob tsis paub meej.
Tsis zoo li cov paib passive, hluav taws xob dosimeters tuaj yeem ceeb toom cov neeg ua haujlwm tam sim yog tias cov hluav taws xob nce siab poob siab.
Neutron Radiation Monitoring
Kev tshawb pom Neutron ua qhov tseem ceeb tshwj xeeb hauv cov ntawv thov nuclear tshwj xeeb.
Qee cov khoom siv hluav taws xob thiab cov roj siv hluav taws xob- thaj chaw muaj feem cuam tshuam yuav tsim cov neutron teb uas tsis tuaj yeem ntsuas tau zoo siv tus qauv gamma detectors ib leeg.
Neutron dosimeters thiab neutron xyuas tshuab pab:
Ntsuas kev ua haujlwm neutron raug
Txhawb kev tiv thaiv kev ntsuas
Txhim kho cov tswv yim tiv thaiv neeg ua haujlwm
Kev saib xyuas neutron kom raug yog qhov tseem ceeb vim tias cov hluav taws xob neutron muaj cov teebmeem lom neeg sib txawv piv nrog cov hluav taws xob gamma.
Radiation Monitoring Thaum Reactor Dismantling
Reactor dismantling sawv cev rau ib qho ntawm - theem txaus ntshai ntawm kev decommissioning nuclear.
Cov haujlwm yuav suav nrog:
Txiav activated Cheebtsam
Tshem tawm cov reactor internals
Tuav cov khoom tsis huv
Npaj pob khoom siv hluav taws xob pov tseg
Thaum lub sijhawm ua haujlwm no, cov xwm txheej hluav taws xob tuaj yeem hloov pauv sai.
Cov neeg ua haujlwm yuav ntsib:
Localized kub chaw
Tsis xav txog kev kis kab mob
Cov koob tshuaj nce ntxiv tom qab tshem tawm cov khoom
Kev soj ntsuam hluav taws xob txuas ntxiv tso cai rau cov pab pawg kho cov txheej txheem tam sim.
Tswj cov khoom siv hluav taws xob tsis zoo
Ib qho kev sib tw loj hauv kev decommissioning yog kev tswj cov khib nyiab hluav taws xob.
Cov ntaub ntawv yuav tsum tau muab cais raws li kev sib kis thiab qib kev ua haujlwm.
Cov khoom siv hluav taws xob tshawb pom pab txiav txim siab:
Seb cov ntaub ntawv xav tau kev tswj pov tseg
Seb cov khoom puas tuaj yeem raug tso tawm los ntawm kev tswj hwm
Tsim nyog qhov yuav tsum tau khaws cia
Kev ntsuas qhov tseeb tiv thaiv ob qho tib si hauv qab - kev faib tawm thiab cov nqi tuav pov tseg tsis tsim nyog.
Qhov tseem ceeb ntawm Calibration thiab Equipment Reliability
Cov khoom siv hluav taws xob kuaj pom hluav taws xob yuav tsum muab cov kev ntsuas txhim khu kev qha thoob plaws hauv kev ua haujlwm ntev.
Calibration yog qhov tseem ceeb tshwj xeeb vim tias kev nyeem ntawv tsis raug tuaj yeem ua rau:
Cov neeg ua haujlwm raug kev pheej hmoo
Kev faib pov tseg tsis raug
Txoj cai tsis ua raws li -
Qhov project qeeb
Ua ntej xa mus, cov cuab yeej hluav taws xob yuav tsum tau ua raws:
Calibration pov thawj
Kev sim ua haujlwm
Kev kuaj roj teeb
Tswb kuaj
Rau kev ua haujlwm ntev -, kev tswj xyuas cov cuab yeej tswj kev pab cuam yog qhov tseem ceeb.
Digital Radiation Monitoring thiab Data Management
Niaj hnub nimno nuclear decommissioning tej yaam num tau dhau los ua cov ntaub ntawv ntau ntxiv - tsav.
Cov pab pawg tiv thaiv hluav taws xob xav tau cov ntaub ntawv raug tseeb ntawm:
Cov neeg ua haujlwm koob tshuaj keeb kwm
Kev ntsuas ntsuas
Cov txiaj ntsig ntawm kev kis kab mob
Cov ntaub ntawv pov tseg
Kev saib xyuas cov tshuab ua kom zoo dua qub:
Traceability
Tshaj tawm efficiency
Cov ntaub ntawv tswj hwm
Ntev - kev npaj ua haujlwm ntev
Qhov no yog qhov tshwj xeeb tshaj yog muaj txiaj ntsig rau cov haujlwm loj decommissioning uas muaj ntau txhiab qhov kev ntsuas ntau xyoo.
Radiation Detection Challenges hauv Aging Nuclear Facilities
Ntau qhov chaw nuclear nkag mus rau kev tshem tawm tau tsim ntau xyoo dhau los.
Qhov no tsim cov kev cov nyom ntxiv:
Laus saib xyuas infrastructure
Cov ntaub ntawv txwv
Aging detectors
Outdated cov ntaub ntawv systems
Hloov cov khoom siv tshuaj xyuas hluav taws xob tsis txaus ntseeg feem ntau yog ib kauj ruam tseem ceeb ua ntej qhov loj dismantling yuav pib.
Cov cuab yeej niaj hnub no muab kev txhim kho qhov tseeb, txav tau yooj yim, thiab sib haum nrog kev tswj hwm kev nyab xeeb tam sim no.
Txhim kho kev nyab xeeb los ntawm kev paub txog hluav taws xob zoo dua
Lub hom phiaj ntawm kev kuaj pom hluav taws xob thaum lub sij hawm decommissioning tsis yog ntsuas hluav taws xob xwb.
Nws yog tsim kom muaj kev paub zoo dua.
Thaum cov neeg ua haujlwm nkag siab txog cov xwm txheej hluav taws xob tam sim no, lawv tuaj yeem txiav txim siab zoo dua txog:
Txoj kev ua haujlwm
Cov cuab yeej tiv thaiv
Lub sij hawm siv nyob rau hauv cov cheeb tsam tswj
Cov txheej txheem tuav cov khoom
Kev saib xyuas kev ntseeg siab txhawb nqa ALARA txoj cai los ntawm kev pab txo cov hluav taws xob raug ntau npaum li qhov ua tau.
Txhawb nqa Nuclear Decommissioning Safety
Cov tuam txhab xws li Astral Route muab hluav taws xob saib xyuas cov kev daws teeb meem tsim los rau kev xav tau nuclear thiab kev lag luam ib puag ncig.
Cov kev daws teeb meem no suav nrog:
Electronic tus kheej dosimeters
Neutron hluav taws xob dosimeters
Portable hluav taws xob soj ntsuam ntsuas ntsuas
Surface contamination monitors
Tritium ntsuas ntsuas
Cov thev naus laus zis no txhawb pab pawg tiv thaiv hluav taws xob hauv kev saib xyuas qhov raug, txheeb xyuas qhov xwm txheej, thiab tswj xyuas kev ua raws li kev ua raws li kev ua haujlwm nyuaj.
Tshawb xyuas cov kev daws teeb meem rau koj ntawmhttps://www.astralroutetech.com/radiation-dosimeter/radiation-dosimeter-rau-radioactive-materials/
FAQ
Vim li cas kev kuaj pom hluav taws xob tseem ceeb hauv kev tshem tawm nuclear?
Vim tias kev rhuav tshem cov dej num tuaj yeem nthuav tawm cov khoom siv hluav taws xob zais thiab hloov hluav taws xob uas yuav tsum tau saib xyuas tas li.
Dab tsi radiation detectors siv thaum decommissioning?
Cov cuab yeej siv feem ntau suav nrog cov ntsuas ntsuas nqa tau yooj yim, ntsuas cov kab mob sib kis, hluav taws xob dosimeters, neutron detectors, thiab cov saib tshwj xeeb rau cov khoom siv hluav taws xob xws li tritium.
Vim li cas thiaj li siv hluav taws xob tus kheej dosimeters siv hauv cov phiaj xwm nuclear?
Lawv muab -cov ntaub ntawv raug rau lub sijhawm thiab lub tswb, tso cai rau cov neeg ua haujlwm teb sai sai rau kev hloov pauv hluav taws xob.
Vim li cas neutron xyuas xav tau hauv qee qhov haujlwm decommissioning?
Qee cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob tuaj yeem tsim hluav taws xob neutron, uas yuav tsum muaj cov txheej txheem tshawb nrhiav tshwj xeeb.
Kev tshawb nrhiav hluav taws xob pab tswj cov khib nyiab li cas?
Kev ntsuas kom raug tso cai rau pab pawg faib cov ntaub ntawv xov tooj cua kom raug thiab xaiv cov kev pov tseg lossis kev cia khoom tsim nyog.
Kev xav zaum kawg
Kev kuaj pom hluav taws xob yog lub hauv paus ntawm kev nyab xeeb nuclear decommissioning. Raws li kev laus cov chaw tsim hluav taws xob thoob ntiaj teb txav mus rau cov nyiaj laus, lub peev xwm los ntsuas hluav taws xob kom raug, saib xyuas cov neeg ua haujlwm raug, thiab tswj kev sib kis tau tseem ceeb zuj zus.
Kev ua tiav tiav yog nyob ntawm ntau dua li kev tshaj lij engineering. Nws yuav tsum tau txhim khu kev qha hluav taws xob saib xyuas cov txheej txheem, kev qhuab qhia kev nyab xeeb, thiab kev paub tas li ntawm kev hloov pauv.
Nrog rau txoj kev tshawb nrhiav thev naus laus zis thiab kev coj ua kev nyab xeeb, cov chaw siv hluav taws xob tuaj yeem rhuav tshem tau zoo thaum tiv thaiv cov neeg ua haujlwm, pej xeem, thiab ib puag ncig thoob plaws hauv tag nrho cov txheej txheem.
