Lalacewar radiation na graphite foda yana da tasiri mai mahimmanci akan aikin fasaha da tattalin arziƙin na'ura mai ba da hanya tsakanin hanyoyin sadarwa, musamman ma'aunin dutsen dutse mai zafin jiki mai sanyaya gas. Hanyar daidaitawa ta neutron ita ce watsawa na roba na neutrons da kuma atom na kayan daidaitawa, kuma makamashin da ke ɗauke da su yana canjawa zuwa atom na kayan daidaitawa. Graphite foda kuma ɗan takara ne mai ban sha'awa don kayan da ke da alaƙa da plasma don masu haɓakar haɗin gwiwar nukiliya. Masu gyara masu zuwa daga Fu Ruite sun gabatar da aikace-aikacen foda na graphite a cikin gwaje-gwajen nukiliya:
Tare da haɓakar haɓakar neutron, graphite foda ya fara raguwa, kuma bayan ya kai ɗan ƙaramin ƙima, raguwa ya ragu, ya dawo zuwa girman asali, sannan ya faɗaɗa da sauri. Domin yin amfani da kyaututtukan neutron da aka fitar ta hanyar fission, yakamata a rage su. Ana samun kaddarorin thermal na graphite foda ta hanyar gwajin iska mai iska, kuma yanayin gwajin iska ya kamata ya zama daidai da ainihin yanayin aiki na reactor. Wani ma'auni don inganta amfani da neutrons shine yin amfani da kayan da aka nuna don nuna alamun neutrons da ke fitowa daga yankin-bayan da fission na nukiliya. Tsarin tunani na neutron kuma shine watsawa na roba na neutrons da atom na kayan nuni. Domin sarrafa asarar da ƙazanta ke haifarwa zuwa matakin da aka yarda, graphite foda da aka yi amfani da shi a cikin reactor yakamata ya zama tsarkakakken nukiliya.
Nuclear graphite foda wani reshe ne na kayan foda na graphite da aka haɓaka don mayar da martani ga buƙatun gina ma'aunin fission na nukiliya a farkon 1940s. Ana amfani da shi azaman mai daidaitawa, tunani da kayan gini a cikin samar da reactors, injin sanyaya gas da masu sanyaya mai zafi mai zafi. Yiwuwar neutron ya amsa tare da tsakiya ana kiransa sashin giciye, kuma thermal neutron (matsakaicin makamashi na 0.025eV) sashin giciye na U-235 shine maki biyu mafi girma fiye da fission neutron (matsakaicin makamashi na 2eV) sashin giciye fission . Modules na roba, ƙarfi da ƙimar faɗaɗa madaidaiciyar foda na graphite yana ƙaruwa tare da haɓaka haɓakar neutron, ya kai babban ƙima, sannan raguwa cikin sauri. A farkon 1940s, kawai graphite foda yana samuwa a farashi mai araha kusa da wannan tsarki, wanda shine dalilin da ya sa kowane reactor da masu samar da kayan aiki na gaba sunyi amfani da graphite foda a matsayin kayan daidaitawa, suna haifar da shekarun nukiliya.
Makullin yin foda na foda na isotropic shine amfani da ƙwayoyin coke tare da isotropy mai kyau: coke isotropic ko macro-isotropic coke na biyu da aka yi daga coke anisotropic, kuma ana amfani da fasahar coke na biyu gabaɗaya a halin yanzu. Girman lalacewar radiation yana da alaƙa da albarkatun albarkatun foda na graphite, tsarin masana'antu, saurin neutron mai sauri da ƙimar haɓaka, zazzabi mai iska da sauran dalilai. Ana buƙatar boron daidai da foda na graphite na nukiliya ya kasance a kusa da 10 ~ 6.
Lokacin aikawa: Mayu-18-2022