GAGG:Ce Scintillator, GAGG Crystal, GAGG Scintillation Crystal
Faa'iidada
● Awood joojin wanaagsan
● Iftiin sare
● Dhallaanka ka dib oo hooseeya
● Waqtiga suuliga degdega ah
Codsiga
● Kamarada Gamma
● PET, PEM, SPECT, CT
● Baadhitaanka raajada & gamma
● Kormeerka weelka tamarta sare
Guryaha
| Nooca | GAGG-HL | Miisaanka GAGG | GAGG-FD |
| Nidaamka Crystal | Kuub | Kuub | Kuub |
| Cufnaanta (g/cm3) | 6.6 | 6.6 | 6.6 |
| Wax-soo-saarka fudud (sawiro/kev) | 60 | 50 | 30 |
| Waqtiga Qulqulka (ns) | ≤150 | ≤90 | ≤48 |
| Mawjada Dhexe (nm) | 530 | 530 | 530 |
| Meesha dhalaalaysa (℃) | 2105 ℃ | 2105 ℃ | 2105 ℃ |
| Isku-dubaridka atomiga | 54 | 54 | 54 |
| Qaraarka Tamarta | 5% | 6% | 7% |
| Shucaaca nafta | No | No | No |
| Hygroscopic | No | No | No |
Sharaxaada Alaabta
GAGG:Ce (Gd3Al2Ga3O12) gadolinium aluminium gallium garnet oo lagu qurxiyey cerium.Waa scintilator cusub oo loogu talagalay hal sawir oo la isku xisaabiyey (SPECT), gamma-ray iyo ogaanshaha elektarooniga Compton.Cerium doped GAGG:Ce waxay leedahay hanti badan oo ka dhigaysa mid ku haboon gamma spectroscopy iyo codsiyada sawirka caafimaadka.Wax-soo-saarka photon-ka sarreeya iyo qiiqa ugu sarreeya ee ku dhow 530 nm ayaa ka dhigaya walxaha si fiican ugu habboon inay akhriyaan aaladaha sawir-qaadayaasha Silicon Photo-multiplier.Epic crystal waxa uu soo saaray 3 nooc oo GAGG:Ce crystal, oo leh waqti qudhun dheereeya(GAGG-FD) crystal, caadiga ah(GAGG-Balance) crystal, wax soo saarka iftiinka sare(GAGG-HL) crystal, looguna talagalay macaamiisha meelo kala duwan.GAGG:Ce waa scintilator aad u rajo badan beerta tamarta sare ee warshadaha tamarta, markii lagu sifeeyay tijaabada nolosha ee ka yar 115kv, 3mA iyo isha shucaaca oo ku yaal masaafo 150 mm u jirta crystal, 20 saacadood ka dib waxqabadku wuxuu la mid yahay kan cusub mid.Waxay ka dhigan tahay inay leedahay rajo wanaagsan oo ay ku adkeyso qiyaasta sare ee shucaaca raajada, dabcan waxay kuxirantahay xaaladaha shucaaca iyo haddii ay dhacdo in lagu sii socdo GAGG ee NDT baaritaan sax ah oo dheeri ah ayaa loo baahan yahay in la sameeyo.Marka laga reebo hal GAGG:Ce crystal, waxaan awoodnaa inaan u abuurno qaab toosan iyo 2 cabbir, cabbirka pixel iyo kala-soocida ayaa lagu gaari karaa iyadoo ku saleysan shuruudaha.Waxaan sidoo kale u horumarinay tignoolajiyada dhoobada GAGG:Ce, waxay si fiican u xalinaysaa wakhtiga isku dhaca (CRT), wakhtiga qudhunka degdega ah iyo soo saarista iftiin sare.
Xallinta tamarta: GAGG Dia2"x2", 8.2% Cs137@662Kev
Waxqabadka dhalaalka ka dib
Waxqabadka iftiinka iftiinka
Xallinta wakhtiga: Waqtiga Qulqulka Degdegga ah ee Gagg
(a) Xallinta wakhtiga: CRT=193ps (FWHM, daaqadda tamarta: [440keV 550keV])
(a) Xallinta wakhtiga Vs.danab eexda: (daaqadda tamarta: [440keV 550keV])
Fadlan ogow in qiiqa ugu sarreeya ee GAGG uu yahay 520nm halka dareemayaasha SiPM loogu talagalay crystals leh 420nm ugu sarreeya.PDE ee 520nm ayaa 30% ka hooseeya marka la barbar dhigo PDE 420nm.CRT ee GAGG waa laga wanaajin karaa 193ps (FWHM) ilaa 161.5ps (FWHM) haddii PDE ee dareemayaasha SiPM ee 520nm ay la mid tahay PDE 420nm.
