Iyo radiation kukuvara kwegriphite poda ine maitiro ekusagadzikana pane maitiro ehunyanzvi uye ehupfumi kuita kweanoshanda, kunyanya mubhedha wepamhepo tembiricha gasi-rakatonhorerwa. Iyo Mechanism yeNetron Moderisation ndeye elastic kupararira kweNetrons uye maatomu ezvinyorwa zvine mwero, uye simba rakatakurwa nawo rinoendeswa kumaatomu ezvinyorwa zvine mwero. Graphite poda iri zvakare inosimudzira mumiriri wezvishandiso-zvakarongedzwa zvemidziyo yenyukireya enyukireya. Vateveri vanotevera vanobva ku fu Ruite kusuma kushandiswa kwegreshite poda muNyukireya bvunzo:
Nekuwedzera kweiyo neutron fluence, iyo graphite poda yekutanga inoderera, uye mushure mekusvika padiki diki, iyo shrinkage inoderera, inodzokera kuhukuru hwekutanga, uye ndokuzokurumidza. Kuti vabatise zvinobudirira panjodzi dzakaburitswa nekukasira, dzinofanira kudzikiswa. Iyo inopisa zvivakwa zvegripite poda inowanikwa nekuedzwa kweRiradiation, uye mamiriro ekuongorora edzidzo anofanirwa kunge akafanana nemamiriro ezvinhu chaiwo ekushanda eanoshanda. Chimwe chiyero chekuvandudza kushandiswa kweNeutrons ndekwekushandisa zvinhu zvinoratidzira kuratidza kuti neutorons kubuda muNyukireya Fissiaces-Core kumashure. Iyo Mechanism yekufungisisa neutroni zvakare ndiyo elastic kupaza kweNeutrons uye maatomu ezvinyorwa zvinoratidzira. Kuti udzore kurasikirwa kunokonzerwa nekusvibiswa kune iyo inobvumirwa nhanho, iyo hupfu graphite inoshandiswa mune yekuita inofanirwa kunge iri yenyukireya.
UNILEAR Graphite PoWD ibazi rebazi reGripite poda zvinhu zvakavandudzwa mukupindura zvinodiwa kuvaka nyukireya kuwana mukana mukutanga kwa1940. Iyo inoshandiswa seModerator, kuratidzira uye zvinhu zvakarongeka mukugadzirwa kwekugadzira, gasi-rakatonhorerwa-tsika uye dzakakwira gasi-tembiricha gasi-rakatonhora Iko kugona kweNeutron kuitwa neiyo nucleus inonzi iyo kiredhi chikamu chemuchinjiko, uye iyo yetron's neutron (yakaenzana simba yeUTME SEUTON NEUTRON (average) Iyo elastic modulus, simba uye mutsara wekuwedzera kuwanda kwegriphite poda kuwedzera nekuwedzera kwekunyepedzera kweNetron, svitsa kukosha kukuru, uyezve kuderedza nekukurumidza. Mukutanga 1940s, chete hupfumi hwakawanikwa pamutengo unokwereta pedyo nekuchena uku, ndosaka mumwe nemumwe anogadzira uye akatevera kugadzirwa kwechifurika socreshite yezvinhu zvine mwero, kushanduka muchizvarwa chenyukireya.
Kiyi yekugadzira isotropic graphite poda ndeye kushandisa coke pritles ine yakanaka: ISotropic coke kana macro-isotropic secken coke, uye sekondari tekinoroji inowanzoshandiswa parizvino. Saizi yekukuvara kweradiation inoenderana nezvinhu zvakagadzirwa zvegreshite hupfu, kugadzira maitiro, nekukurumidza neutron fluence uye kuwanda kwekudziya, tembiricha yerradiation uye zvimwe zvinhu. Iyo Boron yakaenzana neNucler Graphite poda inodikanwa kuve yakatenderedza 10 ~ 6.
Kutumira Nguva: May-18-2022