Ce: YAG - Crystal Scintillation dị mkpa

Ce: YAG bụ kristal scintillation dị mkpa nwere arụmọrụ scintillation mara mma. Ọ nwere nnukwu luminous arụmọrụ na obosara ngwa anya usu. Uru kachasị ukwuu bụ na ogologo ogologo ya nke luminescence bụ 550nm, nke enwere ike jikọta ya na ngwa nchọpụta dị ka silicon photodiodes. E jiri ya tụnyere CsI kristal scintillation, Ce: YAG scintillation crystal nwere oge ire ere ngwa ngwa, yana Ce: YAG scintillation crystal enweghị ihe na-adịghị mma, nguzogide okpomọkụ dị elu, yana arụmọrụ thermodynamic kwụsiri ike. A na-ejikarị ya na nchọpụta urughuru ọkụ, nchọpụta mkpụrụokwu alfa, nchọpụta gamma ray na mpaghara ndị ọzọ. Tụkwasị na nke a, a pụkwara iji ya mee ihe na ihe nhụta electron (SEM), ihuenyo fluorescent microscopic dị elu na mpaghara ndị ọzọ. N'ihi obere ọnụọgụ nke Ce ions na YAG matrix (ihe dị ka 0.1), ọ na-esiri ike itinye Ce ion n'ime kristal YAG, na ihe isi ike nke uto kristal na-abawanye nke ọma na mmụba nke dayameta kristal.
Ce: YAG otu kristal bụ ihe scintillation na-ere ngwa ngwa nke nwere ezigbo ihe zuru oke, yana nsonaazụ ọkụ dị elu (20000 photons / MeV), ire ọkụ na-enwu ngwa ngwa (~ 70ns), Njirimara thermomechanical mara mma, na ogologo ikuku na-egbuke egbuke (540nm) Ọ dị mma. dakọtara na ịnata mwute wavelength nke nkịtị photomultiplier tube (PMT) na silicon photodiode (PD), ezi ìhè usu ọdịiche gamma ụzarị na Alfa ahụ, Ce: YAG bụ adabara ịchọpụta alpha ahụ, electrons na beta ụzarị, wdg The ezi n'ibu. Njirimara nke ihe ebubo ebubo, karịsịa Ce: YAG single crystal, na-eme ka o kwe omume ịkwadebe ihe nkiri dị mkpa na ọkpụrụkpụ nke na-erughị 30um. Ce: YAG scintillation detectors na-eji nke ọma na eletrọn microscopy, beta na X-ray agụta, eletrọn na X-ray imaging screen na ndị ọzọ ubi.