LuAG:Ce Scintillator, LuAG:Ce Crystal, LuAG Scintillation Crystal
Inzuzo
● Okungeyona i-hygroscopic
● izici scintillating ezinzile
● Ukubola okusheshayo
Isicelo
● Isithombe se-X ray
● Isikrini sokufanekisa
● I-Positron Emission Tomography(PET)
Izakhiwo
| I-Crystal System | I-Cubic |
| Ukuminyana (g/cm3） | 6.73 |
| Ukuqina (Mho) | 8.5 |
| I-Melting Point(℃): | 2020 |
| I-Light Yield (photons/keV) | 25 |
| Ukulungiswa kwamandla(FWHM) | 6.5% |
| Isikhathi sokubola | 70 |
| I-Center Wavelength | 530 |
| Ububanzi be-Wavelength(nm): | 475-800 |
| Inombolo ye-athomu esebenzayo | 63 |
| Ukuqina(Mho) | 8.0 |
| I-Thermal Expansion Coefficient(C⁻¹) | 8.8 X 10‾⁶ |
| Ubude Bemisebe(cm): | 1.3 |
| I-Hygroscopic | No |
Incazelo Yomkhiqizo
I-LuAG:Ce (Lutetium Aluminium Garnet-Lu3Al5O12:Ce) amakristalu e-scintillator acishe abe nokuminyana (6.73g/cm³), ano-Z aphezulu (63) futhi anesikhathi sokubola ngokushesha (70ns).Ngokukhipha okuphezulu okumaphakathi okungu-530nm, ukuphuma kwe-LuAG:Ce kufaniswe kahle nama-photodiodes avalanche photodiodes APD kanye nama-silicon photomultipliers (SiPM).Kuyi-synthetic crystalline material ene-cubic structure evame ukusetshenziswa njengezitholi ze-scintillation ezinhlelweni ezihlukahlukene zesayensi, njengokuthwebula izithombe zezokwelapha nokutholwa kwemisebe.Uma ichayeke emisebeni ye-ionizing, i-LuAG:Ce ikhipha ukukhanya, okungatholwa futhi kusetshenziselwe ukudala izithombe noma ukukala amazinga emisebe.Inezinye izindawo eziningi ezinhle kakhulu, njengokuminyana okuphezulu, i-Zeff enkulu kanye nempahla ewumshini omuhle.I-LuAG: Ucezu oluncane oluncane oluhlanganiswe ne-FOP ne-CCD lungasetshenziswa kahle ku-X-ray microscopy kanye ne-micro-nano CT lapho kulindelwe ukulungiswa kwendawo okuhle.Ngenxa yokuminyana kwayo okuphezulu nokukhanyela emisebeni enamandla amakhulu, i-LuAG:Ce iwusizo ikakhulukazi ezinhlelweni ezidinga ukunemba okuphezulu nokuzwela, njengomuthi we-nuclear kanye ne-high-energy physics.Ukwengeza, i-LuAG:Ce yaziwa ngokukhipha ukukhanya okuphakeme, isikhathi sokubola okusheshayo, kanye nokulungiswa kwamandla okuhle kakhulu, okuyenza ibe ukukhetha okudumile kuma-scintillation detectors.Ngaphezu kwalokho la makristalu anezakhiwo ezinhle zokushisa.
I-LuAG:Amakristalu e-Ce scintillator anezinkinga ezilandelayo okufanele ziqashelwe.Banokukhishwa okukhanyayo okuyingxenye enhle engaphezu kuka-500nm, isifunda lapho ama-photomultipliers angazweli kancane.
I-radioactive ngokoqobo ikwenza kungamukeleki kwezinye izinhlelo zokusebenza, futhi kube lula ekulimaleni kwemisebe, kuqala ngemithamo ephakathi kuka-1 no-10 Gray (10² - 10³ rad).Kuhlehliswa ngokuhamba kwesikhathi noma i-anneal.
Ukuhlolwa kokusebenza
Ce: LuAG
Mina no-Ce sakopisha i-LuAG
Pr: LuAG
Ulwazi Olusekelayo
1)Isimo sokuhlola:I-spectra ye-luminescence evuselelwe ngokushisa ilinganiselwe nge-spectrometer ye-Risø TL/OSL-15-B/C.Amasampula afakwe imisebe nge-β-ray (90Sr njengomthombo wemisebe) yamasekhondi angama-200 ngesilinganiso sedosi esingu-0.1 Gy/s.Izinga lokushisisa lalingu-5 °C/s ukusuka ku-30 kuya ku-500 °C futhi ugqinsi olufanayo lwamasampuli lwafakwa ukuze kuqinisekiswe ukuthi imiphumela iyaqhathaniseka.
2)Bonisa:zonke izithombe zingahlelwa;bheka i-spectra ye-TL yangemuva, lapho isampula eshisiswe ngaphezu kuka-400 °C phakathi kuka-700-800 nm kuvela ukukhanya kwesampula kwesiteji (imisebe yomzimba omnyama);idatha yoqobo yengezwe kusisetshenziswa.
