Waxyeellada shucaaca ee budada graphite waxay saameyn go'aan leh ku leedahay waxqabadka farsamo iyo dhaqaale ee fal-galiyaha, gaar ahaan fal-galiyaha gaaska qaboojiya ee heerkulka sare leh ee sariirta dhagaxa ah. Habka dhexdhexaadinta neutron-ka waa kala firdhinta dabacsan ee neutron-ka iyo atamka walxaha dhexdhexaadinta, tamarta ay qaadaanna waxaa loo wareejiyaa atamka walxaha dhexdhexaadinta. Budada Graphite sidoo kale waa musharax rajo leh oo loogu talagalay walxaha ku saleysan balaasmaha ee fal-galayaasha isku-dhafka nukliyeerka. Tifaftirayaasha soo socda ee Fu Ruite waxay soo bandhigayaan isticmaalka budada graphite ee tijaabooyinka nukliyeerka:
Marka uu kordho saameynta neutron-ka, budada graphite-ku marka hore way yaraataa, ka dib marka ay gaarto qiimo yar, yaraanta ayaa hoos u dhacda, waxayna ku noqotaa cabbirkii asalka ahaa, ka dibna si dhakhso ah ayay u fiddaa. Si si wax ku ool ah loogu isticmaalo neutron-yada ay sii daayaan kala-goysyada, waa in la gaabiyaa. Sifooyinka kulaylka ee budada graphite waxaa lagu helaa tijaabada shucaaca, xaaladaha tijaabada shucaaca waa inay la mid noqdaan xaaladaha shaqada ee dhabta ah ee reaktor-ka. Tallaabo kale oo lagu hagaajinayo isticmaalka neutron-yada waa in la isticmaalo agab milicsi leh si loo muujiyo neutron-yada ka soo daadanaya aagga-xudunta falcelinta kala-goysyada nukliyeerka. Habka milicsiga neutron-ku sidoo kale waa kala-goysyada laastikada ah ee neutron-yada iyo atamka walxaha milicsiga leh. Si loo xakameeyo khasaaraha ka dhasha wasakhda ilaa heerka la oggol yahay, budada graphite ee loo isticmaalo reaktor-ka waa inay noqotaa mid saafi ah.
Budada garaafka nukliyeerka waa laan ka mid ah walxaha budada garaafka ee loo sameeyay si looga jawaabo baahiyaha dhismaha fal-galayaasha kala-goynta nukliyeerka horraantii 1940-meeyadii. Waxaa loo isticmaalaa hab-dhexdhexaadiye, milicsi iyo agab dhismeed oo ku jira fal-galayaasha wax soo saarka, fal-galayaasha gaaska qaboojiya iyo fal-galayaasha gaaska qaboojiya heerkulka sare. Suurtagalnimada in neutron-ku uu la falgalo xudunta waxaa loo yaqaan qaybta iskutallaabta, qaybta iskutallaabta kala-goynta kulaylka ee neutron-ka (celceliska tamarta 0.025eV) ee U-235 waa laba darajo oo ka sarreeya qaybta iskutallaabta kala-goynta kala-goynta ee neutron-ka kala-goynta (celceliska tamarta 2eV). Modulus-ka dabacsan, xoogga iyo isku-darka ballaarinta toosan ee budada garaafka ayaa kordha iyadoo la kordhinayo saameynta neutron-ka, waxay gaaraan qiimo weyn, ka dibna si degdeg ah ayay hoos ugu dhacaan. Horraantii 1940-meeyadii, budada garaafka oo keliya ayaa laga heli jiray qiimo la awoodi karo oo u dhow daahirnimadan, waana sababta fal-galiye kasta iyo fal-galayaasha wax soo saarka ee xiga ay u isticmaaleen budada garaafka sidii walxo dhexdhexaadin ah, iyagoo keenaya da'da nukliyeerka.
Furaha sameynta budada graphite isotropic waa in la isticmaalo walxaha kookaha leh isotropy wanaagsan: kookaha isotropic ama kookaha labaad ee macro-isotropic ee laga sameeyay kookaha anisotropic, iyo tignoolajiyada kookaha labaad guud ahaan waa la isticmaalaa hadda. Cabbirka waxyeelada shucaaca waxay la xiriirtaa walxaha ceeriin ee budada graphite, habka wax soo saarka, saameynta neutron-ka ee degdega ah iyo heerka saameynta, heerkulka shucaaca iyo arrimo kale. U dhigma boron ee budada graphite-ka nukliyeerka ayaa looga baahan yahay inay ahaato qiyaastii 10-6.
Waqtiga boostada: Maajo-18-2022