Thaum Lub Yim Hli 24, Nyiv tau qhib kev tso dej pov tseg los ntawm Fukushima nuclear kev sib tsoo rau hauv dej hiav txwv Pacific.Tam sim no, raws li cov ntaub ntawv pej xeem ntawm TEPCO thaum Lub Rau Hli 2023, cov dej phwj tuaj uas tau npaj los tso tawm feem ntau muaj: cov haujlwm ntawm H-3 yog li ntawm 1.4 x10⁵Bq / L;kev ua haujlwm ntawm C-14 yog 14 Bq / L;I-129 yog 2 Bq / L;cov kev ua ntawm Co-60, Sr-90, Y-90, Tc-99, Sb-125, Te-125m thiab Cs-137 yog 0.1-1 Bq / L. Nyob rau hauv no hais txog, peb tsom tsis tsuas yog nyob rau hauv lub tritium nyob rau hauv nuclear pov tseg dej, tab sis kuj muaj peev xwm txaus ntshai ntawm lwm yam radionuclides.TepCO tsuas yog nthuav tawm tag nrho α thiab tag nrho β cov ntaub ntawv xov tooj cua ua haujlwm ntawm cov dej tsis huv, thiab tsis tau nthuav tawm cov ntaub ntawv concentration ntawm cov tshuaj lom ultra-uranium nuclides xws li Np-237, Pu-239, Pu-240, Am-240, Am- 241, Am-243 thiab Cm-242, uas tseem yog ib qho tseem ceeb ntawm kev nyab xeeb kev nyab xeeb rau kev tso dej tawm ntawm cov dej tsis huv mus rau hauv hiav txwv.
Ib puag ncig hluav taws xob muaj kuab paug yog ib qho kev ua qias tuaj, ib zaug tsim tawm yuav muaj kev cuam tshuam tsis zoo rau cov neeg nyob ib puag ncig.Tsis tas li ntawd, yog tias cov khoom siv roj ntsha lossis kev sib kis thoob plaws ib puag ncig ntawm cov khoom siv hluav taws xob tau kis los ntawm radionuclide, nws tuaj yeem kis tau los ntawm qib qis mus rau qib siab los ntawm cov khoom noj khoom haus thiab txuas ntxiv mus ntxiv hauv cov txheej txheem sib kis.Thaum cov pa phem no nkag mus rau tib neeg lub cev los ntawm cov zaub mov, lawv tuaj yeem khaws cia hauv tib neeg lub cev, uas yuav cuam tshuam rau tib neeg kev noj qab haus huv.
Txhawm rau txo lossis zam kev puas tsuaj ntawm hluav taws xob raug rau pej xeem thiab tiv thaiv kev noj qab haus huv rau pej xeem mus txog qhov siab tshaj plaws, "International Basic Safety Standards for Radiation Protection and Radiation Source Safety" qhia tias cov tub ceev xwm muaj peev xwm tsim cov qib siv rau radionuclides hauv cov zaub mov. .
Hauv Suav teb, cov qauv tsim muaj feem xyuam rau kev kuaj pom ntawm ntau hom radionuclids.TS EN ISO 14883.1 ~ 10- -2016 "National Standard for Food Safety: Kev txiav txim siab ntawm cov khoom siv hluav taws xob hauv cov khoom noj" thiab GB 8538--
2022 "National Standard for Food Safety Drinking Natural Mineral Water", GB / T 5750.13- -2006 "Radioactive Index for Standard Inspection Methods for Drinking Water", SN / T 4889- -2017 "Kev txiav txim siab ntawm γ Radionuclide hauv Export High-ntsev zaub mov ", WS / T 234- -2002 "Kev ntsuas cov khoom siv hluav taws xob hauv cov khoom noj-241", thiab lwm yam
Cov txheej txheem tshawb nrhiav radionuclide thiab ntsuas cov cuab yeej hauv cov khoom noj uas muaj nyob hauv cov qauv hauv qab no:
| Txheeb xyuas qhov project | khoom siv analytical | Lwm yam khoom siv tshwj xeeb | txheem |
| α, β tag nrho kev ua haujlwm | Tsawg tom qab α, β txee | GB / T5750.13- -2006 Radioactive Index of Standard Test Methods for Domestic and Drinking Water | |
| tritium | Low-background kua scintillation txee | Organotritium-carbon qauv npaj ntaus ntawv; Triitium concentration sib sau ua ke hauv dej; | GB14883.2-2016 Kev txiav txim siab ntawm Cov Khoom Siv Hluav Taws Xob Hydrogen-3 hauv Khoom Noj, Tus Qauv Hauv Tebchaws rau Kev Nyab Xeeb Khoom Noj |
| Strontium-89 thiab strontium-90 | Tsawg tom qab α, β txee | GB14883.3-2016 Kev txiav txim siab ntawm Strr-89 thiab Strr-90 hauv National Standard for Food Safety | |
| Adventiti - 147 | Tsawg tom qab α, β txee | GB14883.4-2016 Kev txiav txim siab ntawm cov khoom siv hluav taws xob hauv cov zaub mov-147, Lub Tebchaws Tus Qauv rau Kev Nyab Xeeb Khoom Noj | |
| Polonium-210 | α spectrometer | Electric sediments | GB 14883.5-2016 Kev txiav txim siab ntawm Polonium-210 hauv National Standard for Food Safety |
| Rum-226 thiab radium-228 | Radon Thorium Analyzer | GB 14883.6-2016 National Food Safety Standards | |
| Natural thorium thiab uranium | Spectrophotometer, taug qab uranium analyzer | GB 14883.7-2016 Kev txiav txim siab ntawm Ntuj Thorium thiab Uranium raws li cov khoom siv hluav taws xob hauv National Standard for Food Safety | |
| Plutonium-239, plutonium-24 | α spectrometer | Electric sediments | GB 14883.8-2016 Kev txiav txim siab ntawm plutonium-239 thiab plutonium-240 radioactive tshuaj nyob rau hauv National Standard for Food Safety |
| Iodine-131 | High purity germanium γ spectrometer | GB 14883.9-2016 Kev txiav txim siab ntawm Iodine-131 hauv Khoom Noj, Lub Tebchaws Tus Qauv rau Kev Nyab Xeeb Khoom Noj |
cov khoom pom zoo
ntsuas cov cuab yeej
Low-background αβ txee
Hom: ntsiav tshuab
Qauv nab npawb: RJ41-4F
Khoom profile:
Flow hom tsis tshua muaj keeb kwm yav dhau α, β ntsuas ntsuas yog tsuas yog siv rau ib puag ncig kuaj, tiv thaiv hluav taws xob, tshuaj thiab kev noj qab haus huv, kev tshawb fawb txog kev ua liaj ua teb, ntshuam thiab xa tawm cov khoom muag, tshawb nrhiav geological, nuclear fais fab nroj tsuag thiab lwm yam kev lag luam hauv dej, tshuaj lom neeg, aerosol, zaub mov. , tshuaj, av, pob zeb thiab lwm yam xov xwm hauv tag nrho α tag nrho β ntsuas.
Cov hlau lead tuab tiv thaiv hauv chav ntsuas kom ntseeg tau tias tsis tshua muaj keeb kwm yav dhau, kev tshawb pom kev ua haujlwm siab rau cov qauv siv hluav taws xob tsawg, thiab 2,4,6,8,10 raws tuaj yeem kho.
High-purity germanium γ lub zog spectrometer
Hom: ntsiav tshuab
Tus Qauv Zauv: RJ46
Khoom profile:
RJ 46 digital high purity germanium low background spectrometer mas suav nrog cov tshiab siab purity germanium qis keeb kwm yav dhau spectrometer.Lub spectrometer siv qhov kev tshwm sim particle readout hom kom tau txais lub zog (amplitude) thiab lub sij hawm cov ntaub ntawv ntawm cov zis teeb liab ntawm HPGe ntes thiab khaws cia.
α spectrometer
Hom: ntsiav tshuab
Qauv Zauv: RJ49
Khoom profile:
Alpha zog spectroscopy ntsuas tshuab thiab cov cuab yeej siv tau dav siv hauv kev ntsuam xyuas ib puag ncig thiab kev noj qab haus huv (xws li kev ntsuas thorium aerosol, tshuaj xyuas zaub mov, kev noj qab haus huv tib neeg, thiab lwm yam), kev tshawb nrhiav peev txheej (uranium ore, roj, roj, thiab lwm yam) thiab cov qauv geological. Kev tshawb nrhiav (xws li cov peev txheej hauv av, geological kev puas tsuaj) thiab lwm yam.
RJ 494-channel Alpha spectrometer yog PIPS semiconductor ntsuas ntawm nws tus kheej tsim los ntawm Shanghai Renji Instrument Co., Ltd. Lub spectrometer muaj plaub α channels, txhua tus tuaj yeem ntsuas ib txhij, uas tuaj yeem txo lub sij hawm tus nqi ntawm kev sim thiab tau txais sai heev. qhov kev sim tau.
Low-background kua scintillation txee
Hom Lub Npe: HIDEX
Qauv nab npawb: 300SL-L
Khoom profile:
Cov khoom siv hluav taws xob hluav taws xob yog ib yam khoom siv siab heev uas yog siv los ntsuas qhov tseeb ntawm cov xov tooj cua α thiab β nuclides hauv cov kua xov xwm, xws li xov tooj cua tritium, carbon-14, iodine-129, strontium-90, ruthenium-106 thiab lwm yam nuclides.
Cov dej radium analyzer
Hom Lub Npe: PYLON
Model: AB 7
Khoom profile:
Pylon AB7 Portable Radiological Monitor yog lub cim tom ntej ntawm cov cuab yeej ntsuas ntsuas uas muab kev ntsuas ceev thiab raug ntawm cov ntsiab lus radon.
Lwm yam khoom siv tshwj xeeb
Triitium concentration sib sau ua ke hauv dej
Hom Lub Npe: Yi Xing
Qauv nab npawb: ECTW-1
Khoom profile:
Qhov concentration ntawm tritium hauv dej hiav txwv yog qhov tsawg, txawm tias cov cuab yeej tshawb pom zoo tshaj plaws tsis tuaj yeem ntsuas, yog li ntawd, cov qauv uas tsis tshua muaj keeb kwm yav dhau yuav tsum tau ua ntej, uas yog, electrolysis concentration method.Lub ECTW-1 tritium electrolytic collector uas tsim los ntawm peb lub tuam txhab yog tsuas yog siv rau electrolytic concentration ntawm tritium nyob rau hauv cov dej theem qis, uas muaj peev xwm mloog zoo tritium cov qauv hauv qab no cov kev txwv ntawm cov kua flash txee mus txog rau thaum nws yuav raug ntsuas.
Organotritium-carbon qauv npaj ntaus ntawv
Hom Lub Npe: Yi Xing
Qauv nab npawb: OTCS11/3
Khoom profile:
OTCS11 / 3 Organic tritium carbon sampling ntaus ntawv siv lub hauv paus ntsiab lus ntawm cov qauv organic nyob rau hauv qhov kub thiab txias oxidation combustion nyob rau hauv high temperature aerobic ib puag ncig los tsim dej thiab carbon dioxide, kom paub qhov zus tau tej cov tritium thiab carbon-14 nyob rau hauv cov qauv lom, yooj yim rau kev kho mob tom ntej, kua scintillation txee los ntsuas qhov kev ua ntawm tritium thiab carbon-14.
Electric sediments
Hom Lub Npe: Yi Xing
Tus Qauv Zauv: RWD-02
Khoom profile:
RWD-02 yog α spectrometer tsim los ntawm Shanghai Yixing Electromechanical Equipment Co., Ltd.Nws yog tsim los rau kev npaj ntawm α zog spectrum tsom xam cov qauv, thiab yog haum rau nuclear tshuaj thiab radioisotope kev tshawb fawb thiab daim ntawv thov teb.
α spectrometer yog ib qho ntawm cov cuab yeej tseem ceeb ntawm chav kuaj hluav taws xob tsom thiab tuaj yeem txheeb xyuas cov nuclides nrog α lwj.Yog tias nws yog ib qho tseem ceeb kom tau txais kev txheeb xyuas qhov tseeb, ib kauj ruam tseem ceeb yog ua cov qauv.RWD-02 electrodeposition er yog qhov yooj yim rau kev khiav lag luam, uas yooj yim heev rau cov txheej txheem ntawm kev ua qauv, ua ob qho qauv ib zaug thiab txhim kho qhov ua tau zoo ntawm cov qauv kev npaj.
Post lub sij hawm: Oct-31-2023