Fission Induced Ntsiab Cai
Hauv qab kev sib tsoo ntawm txawv teb chaws, qhov teeb meem sib tsoo thiab cov phiaj qauv ua qauv sib xyaw. Thaum lub zog tsis muaj qhov cuam tshuam ntawm cov tub ntxhais sib xyaw siab tshaj qhov siab ntawm fission barrier, qhov tshwm sim ntawm fission nce siab. Qhov fission no yog hu ua kev fission. Ntawm qhov kev ntxias ua haujlwm, neutron fission yog qhov tseem ceeb tshaj plaws. Tsis muaj Coulomb thaiv ntawm lub neutron thiab lub hom phiaj nucleus, thiab cov neutron nrog lub zog qis heev tuaj yeem nkag mus hauv lub nucleus thiab ua rau lub nucleus ua kom muaj siab thiab fission. Tom qab fission, neutrons yog emitted, sib sau ua ib cov saw nti tawm.
Nuclides uas tuaj yeem ua rau fission los ntawm thermal neutrons yog hu ua fissile nuclei, tseem hu ua nuclear roj. 235U, 239Pu thiab 233U yog txhua lub zog hluav taws xob. 235U tshwm sim ib txwm, tab sis nws qhov ntau yog me me. 239Pu thiab 233U yog tsim tawm los ntawm cov tshuaj tiv thaiv nuclear.