Tšenyo ea mahlaseli a phofo ea graphite e na le phello e tiileng ts'ebetsong ea botekgeniki le ea moruo ea reactor, haholo-holo reactor ea pebble bed e nang le mocheso o phahameng oa khase. Mokhoa oa ho laola neutron ke ho hasana ha li-neutron le liathomo tsa thepa e laolang, 'me matla a tsamaisoang ke tsona a fetisetsoa liathomong tsa thepa e laolang. Phofo ea graphite le eona ke mokhethoa ea tšepisang bakeng sa thepa e shebaneng le plasma bakeng sa reactor ea fusion ea nyutlelie. Bahlophisi ba latelang ba tsoang Fu Ruite ba hlahisa ts'ebeliso ea phofo ea graphite litekong tsa nyutlelie:
Ka keketseho ea phallo ea neutron, phofo ea graphite e qala ho fokotseha, 'me ka mor'a ho fihla boleng bo bonyenyane, ho fokotseha hoa fokotseha, ho khutlela boholo ba pele, ebe ho atoloha ka potlako. E le ho sebelisa li-neutron tse lokolloang ka ho arohana ka katleho, li lokela ho fokotsoa. Thepa ea mocheso ea phofo ea graphite e fumanoa ka teko ea mahlaseli, 'me maemo a teko ea mahlaseli a lokela ho tšoana le maemo a sebele a ts'ebetso a reactor. Mohato o mong oa ho ntlafatsa ts'ebeliso ea li-neutron ke ho sebelisa thepa e bonahatsang ho bonahatsa li-neutron tse lutlang ka har'a karabelo ea fission ea nyutlelie sebakeng se ka morao. Mokhoa oa ho bonahatsa li-neutron hape ke ho hasana ha li-neutron le liathomo tsa thepa e bonahatsang. E le ho laola tahlehelo e bakoang ke litšila ho ea boemong bo lumelletsoeng, phofo ea graphite e sebelisoang reactor e lokela ho ba e hloekileng ka nyutlelie.
Phofo ea graphite ea nyutlelie ke lekala la thepa ea phofo ea graphite e ntlafalitsoeng ho arabela litlhoko tsa ho haha li-reactor tsa fission tsa nyutlelie mathoasong a lilemo tsa bo-1940. E sebelisoa e le mohlokomeli, ho bonahatsa le thepa ea sebopeho li-reactor tsa tlhahiso, li-reactor tse pholileng ka khase le li-reactor tse pholileng ka khase tse nang le mocheso o phahameng. Monyetla oa hore neutron e arabele le nucleus o bitsoa karolo e tšelang, 'me karolo e tšelang ea fission ea neutron ea mocheso (matla a karolelano a 0.025eV) ea U-235 e phahame ka makhetlo a mabeli ho feta karolo e tšelang ea fission ea neutron (matla a karolelano a 2eV). Modulus e tenyetsehang, matla le coefficient ea katoloso e otlolohileng ea phofo ea graphite lia eketseha ka keketseho ea fluence ea neutron, li fihla boleng bo boholo, ebe lia fokotseha ka potlako. Mathoasong a lilemo tsa bo-1940, ke phofo ea graphite feela e neng e fumaneha ka theko e tlase e haufi le bohloeki bona, ke ka lebaka leo reactor e 'ngoe le e 'ngoe le li-reactor tsa tlhahiso tse latelang li neng li sebelisa phofo ea graphite e le thepa e lekanyang, e leng se ileng sa tlisa mehla ea nyutlelie.
Senotlolo sa ho etsa phofo ea graphite ea isotropic ke ho sebelisa likaroloana tsa coke tse nang le isotropy e ntle: coke ea isotropic kapa coke ea bobeli ea macro-isotropic e entsoeng ka coke ea anisotropic, 'me theknoloji ea coke ea bobeli e sebelisoa hangata hona joale. Boholo ba tšenyo ea mahlaseli bo amana le lisebelisoa tse tala tsa phofo ea graphite, ts'ebetso ea tlhahiso, phallo e potlakileng ea neutron le sekhahla sa fluence, mocheso oa mahlaseli le lintlha tse ling. Boron e lekanang le phofo ea graphite ea nyutlelie e hlokahala hore e be hoo e ka bang 10~6.
Nako ea poso: Mots'eanong-18-2022