Ama-Neutrons ku-Thermal Neutron reactors adinga ukuguqulwa. Ngokomthetho wama-reactors, ukuze kufinyelelwe umphumela omuhle wokuhlobisa, ama-athomu akhanyayo anezinombolo eziningi eduze nama-neutrons anenzuzo yokulinganiselwa kwe-neutron. Ngakho-ke, izinto zokwenziwa nge-Moderating zibhekisela kulezo zinto ze-nuclide eziqukethe izinombolo eziningi ze-Mass futhi akulula ukuthwebula ama-neutrons. Lolu hlobo lwezinto ezibonakalayo lunengxenye enkulu ye-neutron ehlakazeka yesiphambano kanye nesigaba esincane se-neutron amunction cross-isigaba. I-nuclides ehlangabezana nalezi zimo ifaka i-hydrogen, i-tritium,I-Beryllium, ne-graphite, ngenkathi okungokoqobo kusetshenziswa kufaka amanzi asindayo (D2O),I-Beryllium(Be), i-graphite (c), i-zirconium hydride, kanye neminye imihlaba engavamile.
I-thermal neutron ithambe izingxenye ze-cross ofUmhlaba ongavamileizintoytttrium,umrintshi, futhiuhlobo linthanumZonke zincane, futhi zikha ama-hydrides ahambisanayo ngemuva kokumuncwa kwe-hydrogen. Njengabathwali be-hydrogen, bangasetshenziswa njengabamongameli oqinile kuma-Reactor Cores ukunciphisa amanani we-neutron futhi akhuphule amathuba okuphendula kwenukliya. I-ytttrium hydride iqukethe inani elikhulu lama-athomu ama-hydrogen, alingana nenani lamanzi, futhi ukuqina kwalo kuhle kakhulu. Kuze kube ngu-1200 ℃, i-ytttrium hydride ilahlekelwa yi-hydrogen encane kakhulu, ikwenza kube yithembisa okuthembisayo okushisa okushisa okuvumayo.
Isikhathi Sokuthumela: Oct-19-2023