Video: Vim li cas Uranium siv hauv nuclear reactor?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub isotope U-235 tseem ceeb heev vim hais tias nyob rau hauv tej yam kev mob nws yuav nkag tau yooj yim muab faib, yielding ntau zog. Nws yog li ntawd hais tias yog 'fissile' thiab peb siv cov lus qhia ' nuclear fission '. Lub caij no, zoo li tag nrho cov isotopes radioactive, lawv lwj.
Ib yam li ntawd, tib neeg nug, qhov twg uranium siv nyob rau hauv nuclear reactor?
Uranium -235 yog qhov tshwm sim nkaus xwb fissile isotope, uas ua rau nws dav siv nyob rau hauv nuclear fais fab nroj tsuag thiab nuclear riam phom.
Tom qab ntawd, lo lus nug yog, dab tsi yog uranium siv rau? Radioactive, silvery hlau. Uranium yog ib qho tseem ceeb heev vim nws muab peb cov roj nuclear siv tsim hluav taws xob hauv cov chaw nres tsheb nuclear. Nws tseem yog cov khoom tseem ceeb los ntawm lwm cov khoom siv hluavtaws transuranium ua.
Ib tug kuj yuav nug, yog vim li cas uranium siv nyob rau hauv nuclear foob pob?
Cov isotopes uranium -235 thiab plutonium-239 tau xaiv los ntawm cov kws tshawb fawb atomic vim tias lawv nkag mus rau hauv kev sib cais. Ob leeg ntawm cov neutrons sib tsoo nrog uranium -235 atoms, txhua qhov fission thiab tso tawm ntawm ib thiab peb neutrons, thiab hais txog. Qhov no ua rau a nuclear chain reaction.
Vim li cas uranium yog lub ntsiab lus zoo tshaj plaws rau fission?
Cov lus teb yog uranium . Uranium nyob rau hauv spontaneous fission ntawm tus nqi qeeb heev, thiab emits hluav taws xob. Uranium -235 (U-235) tsuas yog pom muaj li ntawm 0.7 feem pua uranium pom ib txwm muaj, tab sis nws yog qhov zoo rau kev tsim hluav taws xob nuclear. Qhov no yog vim nws decays lawm los ntawm ib tug txheej txheem hu ua alpha hluav taws xob.
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