CaF2(Eu) Scintillator, CaF2(Eu)crystal, CaF2(Eu) kristal scintillator
Faa'iidada
● Hanti makaanik oo wanaagsan.
● Kiimiko ahaan aan firfircoonayn.
● Shucaaca asalka hoose ee asalka ah.
● Qaab dhismeedka qaab-dhismeedyo kala duwan oo si fudud loo farsamayn karo.
● Kulul iyo shoog farsamo oo adag.
Codsiga
● ogaanshaha fallaadhaha gamma
● ogaanshaha β-qaybaha
Guryaha
| Cufnaanta (g/cm3) | 3.18 |
| Nidaamka Crystal | Kuub |
| Nambarka atomiga (waxtarka leh) | 16.5 |
| Meesha dhalaalaysa (K) | 1691 |
| Isku xidhka Balaadhinta kulaylka (C-1) | 19.5 x 10-6 |
| Burburka Diyaaradda | <111> |
| Adag (Mho) | 4 |
| Hygroscopic | No |
| Dhererka Wavenge of Emission Max.(nm) | 435 |
| Tusmada Refractive @ Emission Max | 1.47 |
| Waqtiga Qulqulka Aasaasiga ah (ns) | 940 |
| Wax-soosaarka Fudud (Sawirro/keV) | 19 |
Sharaxaada Alaabta
CaF2:Eu waa kiristaalo kiristaalo ah oo soo saara iftiin marka uu la kulmo shucaaca tamarta sare leh.Karistayaalku waxay ka kooban yihiin kalsiyum fluoride oo leh qaab-dhismeed crystal cubic iyo ions europium oo lagu beddelay qaab-dhismeedka shabagga.Ku darida europium waxay wanaajisaa sifooyinka kristal, taasoo ka dhigaysa mid aad waxtar u leh marka loo beddelo shucaaca iftiinka.CaF2:Eu waxa uu leeyahay cufnaan sare iyo tiro atomic ah, taas oo ka dhigaysa wax ku habboon ogaanshaha iyo falanqaynta gamma-ray.Intaa waxaa dheer, waxay leedahay xallin tamar wanaagsan, taasoo la micno ah inay kala saari karto noocyada kala duwan ee shucaaca iyadoo lagu saleynayo heerarka tamarta.CaF2:Eu waxaa si weyn loogu isticmaalaa sawirada caafimaadka, fiisigiska nukliyeerka iyo codsiyada kale ee u baahan ogaanshaha shucaaca sare.
CaF2:Eu scintillator crystals - arrimaha ay tahay in laga digtoonaado: Cufnaantiisa hoose iyo Z hooseeya awgeed, waxay leedahay waxsoosaar iftiin yar marka ay la falgasho tamarta sare ee gamma-rays.Waxay leedahay xadhig nuugista fiiqan oo ah 400nm kaas oo qayb ahaan ku dul wareegaya band-ka sii daynta
Imtixaanka Waxqabadka
[1]Noocyada sii daaya:"Emission_at_327nm_excitation_1" waxay u dhigantaa cabbiraadda spectrum ee iftiinka fluorescence ee ka soo baxaya crystal marka uu ku faraxsan yahay iftiinka 322 nm (oo leh 1.0 nm slitwidth ee monochromator isha).
Xallinta hirarka dhererka ee spectrum waa 0.5 nm (slitball ee falanqaynta).
[2]Xamaasadda spectrum:"excitation_at_424nm_emission_1_mo1" waxay u dhigantaa cabirida fluorescence ka soo baxaya mawjada go'an ee 424 nm
Sawir-qaadayaasha (tirinta ilbiriqsiyo) ayaa si fiican uga hoos shaqeynayey saturation sidaa darteed miisaanka toosan, in kasta oo aan sabab lahayn, waa toosan.
In kasta oo nooca qiiqa buluuga ah ee Eu:CaF2 ee soo saarayaasha kala duwan ay isku mid yihiin, waxaan ogaanay in xajmiga xiisaha u dhexeeya 240 iyo 440 nm ay si weyn ugu kala duwanaan karaan soosaarayaasha kala duwan:
Soo-saare kastaa waxa uu leeyahay calaamad u gaar ah oo lagu garto.Waxaan ka shakisanahay in kala duwanaanshuhu ay ka tarjumayaan heerarka kala duwan ee wasakhaha / cilladaha / oksaydheynta (valence).
-Sababtoo ah xaaladaha koritaanka kala duwan iyo baabi'inta Eu:CaF2 crystal.
