I-GAGG:I-Ce Scintillator, i-GAGG Crystal, i-GAGG Scintillation Crystal
Inzuzo
● Amandla afanelekileyo okumisa
● Ukukhanya okuphezulu
● Ukukhanya okusemva okuphantsi
● Ixesha lokubola ngokukhawuleza
Isicelo
● Ikhamera yeGamma
● I-PET, i-PEM, i-SPECT, i-CT
● Ukufunyaniswa kwe-X-reyi kunye ne-Gamma ray
● Ukuhlolwa kwesikhongozeli samandla aphezulu
Iipropati
| Uhlobo | I-GAGG-HL | Ibhalansi yeGAGG | I-GAGG-FD |
| Inkqubo yeCrystal | Cubic | Cubic | Cubic |
| Ubuninzi (g/cm3） | 6.6 | 6.6 | 6.6 |
| Isivuno esiKhala (iifoto/kev) | 60 | 50 | 30 |
| Ixesha lokubola (ns) | ≤150 | ≤90 | ≤48 |
| Umbindi weWavelength (nm) | 530 | 530 | 530 |
| Indawo yokunyibilika (℃) | 2105℃ | 2105℃ | 2105℃ |
| I-Atomic Coefficient | 54 | 54 | 54 |
| Isisombululo saMandla | ＜5% | ＜6% | ＜7% |
| Ukuzitshiza | No | No | No |
| Hygroscopic | No | No | No |
Ingcaciso yeMveliso
I-GAGG:Ce (Gd3Al2Ga3O12) i-gadolinium aluminiyam i-gallium garnet efakwe kwi-cerium.Yi-scintillator entsha ye-photon emission ye-computed tomography (SPECT), i-gamma-ray kunye ne-Compton electron yokufumanisa.I-Cerium doped GAGG:Ce ineepropati ezininzi ezenza ukuba ifanelekele i-gamma spectroscopy kunye nezicelo zokucinga zonyango.Isivuno esiphezulu se-photon kunye nencopho yokukhutshwa malunga ne-530 nm yenza ukuba izinto zifaneleke ukuba zifundwe yi-Silicon Photo-multiplier detectors.I-Epic crystal iphuhlise iintlobo ezi-3 ze-GAGG: i-crystal ye-Ce, kunye nexesha lokubola ngokukhawuleza (GAGG-FD) ikristale, eqhelekileyo (i-GAGG-Balance) ikristale, ukukhanya okuphezulu (GAGG-HL) ikristale, kumthengi kwiindawo ezahlukeneyo.I-GAGG: I-Ce siscintillator esithembisayo kakhulu kwintsimi yemizi-mveliso yamandla aphezulu, xa yayibonakaliswe kuvavanyo lobomi phantsi kwe-115kv, 3mA kunye nomthombo wemitha obekwe kumgama oyi-150 mm ukusuka kwikristale, emva kweeyure ezingama-20 ukusebenza kuphantse kwafana nokutsha. Nye.Kuthetha ukuba inethemba elilungileyo lokumelana nedosi ephezulu phantsi kwe-X-reyi ye-ray, ngokuqinisekileyo ixhomekeke kwiimeko zokukhanya kwemitha kwaye kwimeko yokuya phambili nge-GAGG ye-NDT olunye uvavanyo oluchanekileyo kufuneka luqhutywe.Ngaphandle kwe-GAGG enye: Ikristale ye-Ce, siyakwazi ukuyenza ibe yilayini kunye ne-2 dimensional array, ubungakanani bepixel kunye nomahluli bunokufezekiswa ngokusekwe kwimfuno.Sikwaphuhlise itekhnoloji ye-GAGG yeceramic: Ce, inexesha elingcono lokusombulula ingxaki (CRT), ixesha lokubola ngokukhawuleza kunye nokukhanya okuphezulu.
Isisombululo samandla: GAGG Dia2”x2”, 8.2% Cs137@662Kev
Ukusebenza emva kokukhanya
Ukusebenza kwemveliso yokukhanya
Isisombululo sexesha: Ixesha lokubola kweGagg ngokukhawuleza
(a) Isisombululo sexesha: CRT=193ps (FWHM, ifestile yamandla: [440keV 550keV])
(a) Isisombululo sexesha Vs.amandla ombane okuthambekela: (ifestile yamandla: [440keV 550keV])
Nceda uqaphele ukuba i-peak emission ye-GAGG yi-520nm ngelixa ii-sensors ze-SiPM zenzelwe iikristale kunye ne-420nm peak emission.I-PDE ye-520nm yi-30% ephantsi xa kuthelekiswa ne-PDE ye-420nm.I-CRT ye-GAGG inokuphuculwa ukusuka kwi-193ps (FWHM) ukuya kwi-161.5ps (FWHM) ukuba i-PDE ye-SiPM sensors ye-520nm iya kuhambelana ne-PDE ye-420nm.
