Maneutron ari mu thermal neutron reactors anofanirwa kuverengerwa. Zvinoenderana nemusimboti wemareactors, kuti uwane yakanaka moderation maitiro, maatomu akareruka ane huwandu hwehuwandu hwepedyo nemanyuturoni anobatsira pakuyera neutron. Naizvozvo, mamodhita emidziyo anoreva zviya zvemunuclide zvine manhamba mashoma uye zvisiri nyore kutora manyutroni. Rudzi urwu rwezvinhu rwune hombe neutron inoparadzira muchinjiko uye diki neutron absorption cross-section. Iwo nuclides anosangana nemamiriro aya anosanganisira hydrogen, tritium,beryllium, uye graphite, nepo chaiwo anoshandiswa anosanganisira mvura inorema (D2O),beryllium(Iva), graphite (C), zirconium hydride, uye mamwe makomisheni epasi asingawanzo.
Iyo thermal neutron inobata zvikamu zvakachinjika zverare pasizvinhuyttrium,cerium,uyelanthanumese madiki, uye anoumba anoenderana hydrides mushure mekutora hydrogen. Sevatakuri vehydrogen, vanogona kushandiswa seakasimba mamodhireta mumareactor cores kudzikamisa manyutroni uye kuwedzera mukana wekuita kwenyukireya. Yttrium hydride ine nhamba huru yemaatomu ehydrogen, yakaenzana nehuwandu hwemvura, uye kugadzikana kwayo kwakanaka. Kusvika 1200 ℃, yttrium hydride inongorasikirwa nehydrogen shoma, zvichiita kuti ive inovimbisa-yepamusoro-tembiricha reactor deceleration zvinhu.
Nguva yekutumira: Oct-19-2023