Ce: YAG - Crystal ea Bohlokoa ea Scintillation
Tlhaloso ea Sehlahisoa
Ce: YAG ke kristale ea bohlokoa ea scintillation e nang le ts'ebetso e ntle ea scintillation. E na le ts'ebetso e phahameng ea khanya le phallo e pharalletseng ea optical. Monyetla o moholo ke hore bolelele ba eona bo bohareng ba luminescence ke 550nm, e ka kopantsoeng hantle le lisebelisoa tsa ho lemoha tse kang silicon photodiodes. Ha ho bapisoa le CsI scintillation crystal, Ce: YAG scintillation crystal e na le nako ea ho bola ka potlako, 'me Ce: YAG scintillation crystal ha e na deliquescence, e hanyetsa mocheso o phahameng, le ts'ebetso e tsitsitseng ea thermodynamic. E sebelisoa haholo ho lemoha likaroloana tse bobebe, ho lemoha likaroloana tsa alpha, ho lemoha mahlaseli a gamma le likarolo tse ling. Ho feta moo, e ka boela ea sebelisoa ho litšoantšo tsa elektronike (SEM), skrine ea microscopic imaging fluorescent e phahameng le likarolo tse ling. Ka lebaka la karolo e nyane ea karohano ea Ce ions ho YAG matrix (hoo e ka bang 0.1), ho thata ho kenyelletsa Ce ions ka har'a likristale tsa YAG, mme bothata ba kholo ea kristale bo eketseha haholo ka keketseho ea bophara ba kristale.
Ce: YAG single kristale ke sesebelisoa sa scintillation se bolang ka potlako se nang le thepa e felletseng e felletseng, se nang le khanya e phahameng (20000 photons / MeV), ho bola ho potlakileng (~ 70ns), thepa e ntle ea thermomechanical, le leqhubu le khanyang la tlhōrō (540nm) E hantle. e tsamaellanang le ho amohela wavelength e amohelang ea tšupu e tloaelehileng ea photomultiplier (PMT) le silicon photodiode (PD), khanya e ntle ea leseli e khetholla mahlaseli a gamma le likaroloana tsa alpha, Ce: YAG e loketse ho lemoha likaroloana tsa alpha, lielektrone le mahlaseli a beta, joalo-joalo. thepa ea likaroloana tse qosoang, haholo-holo Ce: YAG kristale e le 'ngoe, e etsa hore ho khonehe ho lokisa lifilimi tse tšesaane tse nang le botenya bo ka tlase ho 30um. Ce: YAG scintillation detectors li sebelisoa haholo ho electron microscopy, beta le X-ray counting, electron le X-ray imaging screens le mafapha a mang.
Likaroloana
● Wavelength (boholo ba tlhahiso) : 550nm
● Wavelength range : 500-700nm
● Ho bola nako : 70ns
● Tlhahiso e khanyang (Photons / Mev): 9000-14000
● Refractive index (maximum emission): 1.82
● Bolelele ba mahlaseli: 3.5cm
● Phetiso (%) :TBA
● Phetiso ea mahlo (um) :TBA
● Tahlehelo ea Maikutlo/Bokaholimo (%) :TBA
● Tharollo ea matla (%) : 7.5
● Khase e tsoang [% ea NaI(Tl)] (bakeng sa mahlaseli a gamma) :35
