I-Ce: YAG - Ikristalu Ebalulekile Ye-Scantillation
Incazelo Yomkhiqizo
I-Ce:YAG iyikristalu ebalulekile ye-scintillation enokusebenza okuhle kakhulu kwe-scintillation. Inokukhanya okuphezulu okuphezulu kanye ne-wide Optical pulse. Inzuzo enkulu ukuthi i-wavelength yayo emaphakathi ye-luminescence ingu-550nm, engahlanganiswa ngempumelelo nemishini yokuthola njenge-silicon photodiodes. Uma kuqhathaniswa ne-CsI scintillation crystal, i-Ce:YAG scintillation crystal inesikhathi sokubola ngokushesha, kanti i-Ce:YAG scintillation crystal ayinakho ukubola, ukumelana nezinga lokushisa okuphezulu, nokusebenza okuzinzile kwe-thermodynamic. Isetshenziswa kakhulu ekutholweni kwezinhlayiyana zokukhanya, ukutholwa kwezinhlayiyana ze-alpha, ukutholwa kwe-gamma ray nezinye izinkambu. Ngaphezu kwalokho, ingasetshenziswa futhi ekubonweni kwe-electron imaging (SEM), isikrini se-imaging microscopic imaging fluorescent ephezulu nezinye izinkambu. Ngenxa ye-coefficient encane yokuhlukanisa yama-Ce ions ku-MAtrix ye-YAG (cishe u-0.1), kunzima ukuhlanganisa ama-Ce ion kumakristalu e-YAG, futhi ubunzima bokukhula kwekristalu bukhuphuka kakhulu ngokunyuka kobubanzi bekristalu.
I-Ce: Ikristalu eyodwa ye-YAG iyi-scintillation ebola ngokushesha enezici ezinhle kakhulu ezibanzi, ephuma nokukhanya okuphezulu (20000 photons/MeV), ukubola okukhanyayo okusheshayo (~70ns), izakhiwo ezinhle kakhulu ze-thermomechanical, kanye nobude obukhanyayo obuphezulu (540nm) Kuhle kakhulu. ifaniswe nobude obuzwelayo obutholayo beshubhu ye-photomultiplier evamile (PMT) kanye ne-silicon photodiode (PD), ukukhanya okuhle kwe-pulse kuhlukanisa imisebe ye-gamma nezinhlayiya ze-alpha, i-Ce:YAG ilungele ukuthola izinhlayiya ze-alpha, ama-electron kanye nemisebe ye-beta, njll. izakhiwo zezinhlayiya ezishajiwe, ikakhulukazi i-Ce:YAG ikristalu eyodwa, yenza kube nokwenzeka ukulungisa amafilimu amancane anogqinsi olungaphansi kuka-30um. I-Ce:YAG scintillation detectors isetshenziswa kakhulu kumakhroscopy e-electron, ukubala kwe-beta ne-X-ray, izikrini ze-electron ne-X-ray imaging nezinye izinkundla.
Izici
● Ubude begagasi (ukukhishwa okuphezulu) : 550nm
● Ibanga le-wavelength : 500-700nm
● Isikhathi sokubola : 70ns
● Okukhipha ukukhanya (Ama-Photons/Mev): 9000-14000
● Inkomba ye-Refractive (umthamo omkhulu wokukhishwa): 1.82
● Ubude bemisebe :3.5cm
● Ukudlulisa (%) :TBA
● Ukudlulisa amehlo (um) :TBA
● Ukulahleka Kwe-Reflection/Surface (%) ：TBA
● Ukulungiswa kwamandla (%) :7.5
● Ukukhishwa kokukhanya [% of NaI(Tl)] (kwemisebe ye-gamma) :35
