Video: Dab tsi yog kev siv cov saw hlau nuclear siv rau?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nuclear chain reaction . Nuclear chain reactions yog cov tshuaj tiv thaiv qhov twg nuclear lub zog tau txais, feem ntau los ntawm nuclear fission. Cov no chain reactions yog dab tsi muab nuclear fais fab nroj tsuag nrog lub zog uas tom qab ntawd tig mus rau hauv hluav taws xob siv los ntawm tib neeg.
Tsis tas li cov lus nug yog, lub hom phiaj ntawm cov tshuaj tiv thaiv kab mob hauv lub tshuab hluav taws xob nuclear yog dab tsi?
Nuclear Chain Reactions. Cov tshuaj tiv thaiv kab mob yog hais txog a txheej txheem nyob rau hauv uas neutrons tso tawm nyob rau hauv fission tsim ib tug ntxiv fission nyob rau hauv tsawg kawg yog ib tug ntxiv nucleus. Qhov no nucleus nyob rau hauv lem tsim neutrons, thiab cov txheej txheem rov ua dua. Cov txheej txheem tej zaum yuav tswj tau (nuclear hwj chim) los yog uncontrolled (nuclear riam phom).
Qhov thib ob, yuav ua li cas tshwm sim nyob rau hauv ib qho kev tswj tsis tau nuclear cov tshuaj tiv thaiv? Ib Uncontrolled Nuclear Chain Reactions ua haujlwm tib yam li 'Controlled' tshuaj tiv thaiv Txawm li cas los xij, tus nqi ntawm Uranium tsis raug saib xyuas thiab, vim li no, a nuclear tawg tuaj yeem tshwm sim. Thaum Nuclear Chain Reactions , ib tug neutron raug rho tawm haujlwm ntawm lub xov tooj cua isotope's (lub molecule nrog ib qho tsis ruaj khov molecule) nucleus.
Hais txog qhov no, dab tsi yog qhov xav tau rau kev tawm tsam nuclear?
Fission chain reactions tshwm sim vim muaj kev cuam tshuam ntawm neutrons thiab fissile isotopes (xws li 235U). Cov chain reaction xav tau ob qho tib si tso tawm ntawm neutrons los ntawm fissile isotopes tab tom ua nuclear fission thiab tom qab nqus ntawm qee cov neutrons hauv fissile isotopes.
Yog vim li cas ib tug nuclear saw tshuaj tiv thaiv nws tus kheej sustaining?
A cov tshuaj tiv thaiv nuclear yog kev txhawb nqa tus kheej thaum muaj cov neurons txaus tsim nyob rau hauv cov tub ntxhais los hloov cov neurons uas ploj vim los ntawm cov tub ntxhais los yog raug absorbed los ntawm cov khoom tsis yog roj hauv cov tub ntxhais.
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