Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Da farko, gamma radiation daga fission kayayyakin wani daidai size fission-fusion-fission bam ne da yawa fiye da tsanani fiye da Co-60: 15,000 sau mafi tsanani a 1 hour; 35 sau mafi tsanani a 1 mako; 5 sau mafi tsanani a 1 watan; kuma game da daidai a 6 watanni. Bayan haka fission ya sauka da sauri don haka Co-60 fallout ya ninka sau 8 fiye da fission a shekara 1 kuma sau 150 ya fi tsanani a shekaru 5. Isotopes masu tsayi da yawa da aka samar ta hanyar fission zasu sake wuce 60Co bayan kimanin shekaru 75. Gwajin "taiga" sau uku na nukiliya, a matsayin wani ɓangare na shirin farko na Maris 1971 Pechora <unk> Kama Canal, ya samar da ƙananan samfurori na fission kuma sabili da haka yawancin samfurori masu aiki da kayan aiki suna da alhakin yawancin ayyukan da suka rage a shafin a yau, wato Co-60. Tare da wannan samfurin kunnawar neutron da aka samar da haɗin gwiwa yana da alhakin kusan rabin gamma kashi yanzu ((2011) a wurin gwajin, kodayake tare da wannan kashi yana da ƙanƙanta don haifar da illa mai cutarwa, akwai ciyayi na yau da kullun a kewayen tafkin da aka kafa.  Tambaya: Yaya tsananin fission da aka fitar daga gamma radiation Co-60?
8 sau da yawa fiye da fission a shekara 1 da kuma 150 sau da yawa fiye da tsanani a shekaru 5