Lus txhais ntawm qhov tshwm sim nthawv
Spontaneous fission, fission ntawm ib qho piv txwv atomic nucleus tsis muaj cov khoom tawg lossis kev ntxiv ntawm lub zog. Cov txheej txheem sib cais ntawm lub pob hluav taws xob hnyav rau ob lossis ntau qhov nruab nrab-tawg feem uas emit neutrons thiab lub zog tib lub sijhawm hu ua spontaneous fission ntawm lub nucleus. Spontaneous fission yog nuclear fission uas tshwm sim nthawv yam tsis muaj lub foob pob los ntawm lwm qhov txawv txav. Nws tseem tuaj yeem siv lub sijhawm ib nrab ntawm lub neej los ntsuas qhov kev nyuaj ntawm kev fission. Spontaneous fission ntawm cov khoom ntuj tau pom tsuas yog nyob hauv isotopes ntawm uranium thiab plutonium. Piv nrog rau alpha lwj, qhov tshwm sim fission feem sib npaug ntawm uranium thiab plutonium me me thiab tuaj yeem yuav luag tsis quav ntsej.