I-GAGG:I-Ce Scintillator, i-GAGG Crystal, i-GAGG Scintillation Crystal
Inzuzo
● Amandla amahle okumisa
● Ukukhanya okuphezulu
● Ukukhanya okungemuva okuphansi
● Ukubola okusheshayo
Isicelo
● Ikhamera ye-Gamma
● I-PET, i-PEM, i-SPECT, i-CT
● Ukutholwa kwe-X-ray & Gamma ray
● Ukuhlolwa kweziqukathi zamandla aphezulu
Izakhiwo
| Uhlobo | I-GAGG-HL | Ibhalansi ye-GAGG | I-GAGG-FD |
| I-Crystal System | I-Cubic | I-Cubic | I-Cubic |
| Ukuminyana (g/cm3） | 6.6 | 6.6 | 6.6 |
| Isivuno Esilula (photons/kev) | 60 | 50 | 30 |
| Isikhathi sokubola | ≤150 | ≤90 | ≤48 |
| I-Center Wavelength (nm) | 530 | 530 | 530 |
| I-Melting Point (℃) | 2105℃ | 2105℃ | 2105℃ |
| I-Atomic Coefficient | 54 | 54 | 54 |
| Ukulungiswa Kwezamandla | ＜5% | ＜6% | ＜7% |
| I-Self-radiation | No | No | No |
| I-Hygroscopic | No | No | No |
Incazelo Yomkhiqizo
I-GAGG:Ce (Gd3Al2Ga3O12) i-gadolinium aluminium gallium garnet efakwe i-cerium.Kuyi-scintillator entsha ye-single photon emission computed tomography (SPECT), i-gamma-ray kanye nokutholwa kwe-electron ye-Compton.I-Cerium doped GAGG:Ce inezinto eziningi eziyenza ifanelekele i-gamma spectroscopy kanye nezicelo zokuthwebula zezokwelapha.Isivuno esiphezulu se-photon kanye nenani eliphakeme lokukhishwa cishe ku-530 nm kwenza okokusebenza kukufanelekele ukufundwa yizitholi ze-Silicon Photo-multiplier.I-Epic crystal ithuthukise izinhlobo ezi-3 ze-GAGG:Ikristalu ye-Ce, enekristalu yokubola ngokushesha(GAGG-FD), ikristalu evamile(GAGG-Balance), ikristalu yokukhanya okuphezulu (GAGG-HL), yekhasimende emkhakheni ohlukile.I-GAGG:Ce iyi-scintillator ethembisa kakhulu emkhakheni wezimboni zamandla aphezulu, lapho ibonakala ekuhlolweni kwempilo ngaphansi kuka-115kv, 3mA kanye nomthombo wemisebe otholakala ebangeni elingu-150 mm ukusuka kukristalu, ngemva kwamahora angu-20 ukusebenza kucishe kufane nokusha. eyodwa.Kusho ukuthi inethuba elihle lokumelana nethamo eliphezulu ngaphansi kokushiswa kwe-X-ray, vele kuncike ezimeni zokuthela imisebe futhi uma kwenzeka kuqhubekela phambili nge-GAGG ye-NDT okunye ukuhlolwa okufanele kwenziwe.Eceleni kwe-GAGG eyodwa: Ikristalu ye-Ce, siyakwazi ukulenza libe umugqa nomugqa ofanayo 2, usayizi wephikseli nesihlukanisi kungafinyelelwa kuye ngemfuneko.Siphinde sathuthukisa ubuchwepheshe be-ceramic GAGG:Ce, inesikhathi esingcono sokuxazulula ukuhlangana (CRT), isikhathi sokubola esisheshayo kanye nokukhishwa kokukhanya okuphezulu.
Ukulungiswa kwamandla: I-GAGG Dia2”x2”, 8.2% Cs137@662Kev
Ukusebenza kwe-Afterglow
Ukusebenza kokukhipha ukukhanya
Ukulungiswa Kwesikhathi: Isikhathi Sokubola Okusheshayo kwe-Gagg
(a) Ukulungiswa kwesikhathi: CRT=193ps (FWHM, iwindi lamandla: [440keV 550keV])
(a) Isixazululo sesikhathi Vs.i-bias voltage: (iwindi lamandla: [440keV 550keV])
Sicela uqaphele ukuthi ukukhishwa okuphezulu kwe-GAGG kungu-520nm kuyilapho izinzwa ze-SiPM zakhelwe amakristalu ane-420nm peak emission.I-PDE ye-520nm iphansi ngo-30% uma iqhathaniswa ne-PDE ye-420nm.I-CRT ye-GAGG ingathuthukiswa isuka ku-193ps (FWHM) iye ku-161.5ps (FWHM) uma i-PDE yezinzwa ze-SiPM engu-520nm ingafana ne-PDE ye-420nm.
