CaF2(Eu) Scintillator, CaF2(Eu)crystal,CaF2(Eu)scintillation crystal
Inzuzo
● Ipropathi efanelekileyo yokukhanda.
● Inert ngokwemichiza.
● Utshiso lwemitha oluyimvelaphi ephantsi.
● Ulwakhiwo olulungelelanisiweyo olulungelelaniswayo lunokusetyenzwa lula.
● Womelele ukuya kumothuko we-thermal kunye noomatshini.
Isicelo
● Ukufunyanwa kwemitha yeGamma
● ukufunyanwa kwamasuntswana e-β
Iipropati
| Uxinaniso(g/cm3) | 3.18 |
| Inkqubo yeCrystal | Cubic |
| Inombolo yeAtom (Esebenzayo) | 16.5 |
| Indawo yokunyibilika (K) | 1691 |
| I-Thermal Expansion Coefficient (C-1) | 19.5 x 10-6 |
| Cleavage Plane | <111> |
| Ukuqina (Mho) | 4 |
| Hygroscopic | No |
| Ubude beWavelength boMax okukhutshwayo.(nm) | 435 |
| Refractive Index @ Emission Max | 1.47 |
| Ixesha lokubola okuPhambili (ns) | 940 |
| Isivuno esiKhala (iifoto/keV) | 19 |
Ingcaciso yeMveliso
CaF2:I-Eu yikristale ye-scintillator ekhupha ukukhanya xa ibonakaliswe kwimitha ephezulu yamandla.Iikristale ziquka i-calcium fluoride ene-cubic crystal structure kunye ne-europium ion efakwe endaweni ye-lattice structure.Ukongezwa kwe-europium kuphucula i-crystal's scintillation properties, iyenze isebenze ngakumbi ekuguquleni imitha ibe ukukhanya.CaF2:I-Eu inoxinaniso oluphezulu kunye nenani eliphezulu leathom, nto leyo eyenza ukuba ibe yimathiriyeli efanelekileyo yokufunyaniswa kwe-gamma-ray kunye nohlalutyo.Ukongeza, inesisombululo esihle samandla, okuthetha ukuba inokwahlula phakathi kweentlobo ezahlukeneyo zemitha yemitha ngokusekelwe kumanqanaba abo amandla.CaF2:I-Eu isetyenziswa kakhulu kwimifanekiso yezonyango, ifiziksi yenyukliya kunye nezinye izicelo ezifuna ukubonwa kwemitha yokusebenza ephezulu.
CaF2:Iikristale ze-Eu scintillator - imiba ekufuneka iqwalaselwe: Ngenxa yobuninzi bayo obuphantsi kunye ne-Z ephantsi, inesivuno esiphantsi sokukhanya xa isebenzisana nemitha ye-gamma yamandla aphezulu.Inebhendi yokufunxa ebukhali kwi-400nm ethi ngokuyinxenye igqithe ibhendi yokukhupha i-scintillation.
Uvavanyo lokuSebenza
[1]I-spectrum yokukhupha:"emission_at_327nm_excitation_1" ihambelana nokulinganisa i-spectrum yokukhanya kwe-fluorescence ekhutshwa kwikristale xa ichulumanciswa kukukhanya kwe-322 nm (kunye ne-1.0 nm slitwidth kwi-monochromator yomthombo).
Isisombululo se-wavelength se-spectrum yi-0.5 nm (i-slitwidth ye-analyser).
[2]I-excitation spectrum:I-“excitation_at_424nm_emission_1_mo1” ihambelana nokulinganisa i-fluorescence ekhutshwa kubude obumiselweyo be-424 nm (0.5 nm slitwidth kumhlalutyi) ngeli lixa uskena ubude bobude besibane esivuselelayo (0.5 nm monochromatwidth).
Ifotomultiplier (izibalo ngesekondi nganye) ibisebenza kakuhle ngezantsi komlinganiselo ngoko ke izikali ezithe nkqo, nangona kungenasizathu, zibe mgca.
Nangona i-spectrum ye-blue emission ye-Eu:CaF2 evela kubavelisi abohlukeneyo iyafana, sifumanisa ukuba i-spectrum yolonwabo phakathi kwe-240 kunye ne-440 nm inokwahluka kakhulu phakathi kwabavelisi abohlukeneyo:
umenzi ngamnye unophawu lwakhe lomsayino we-spectral / "uphawu lweminwe".Sikrokrela ukuba iyantlukwano ibonisa amanqanaba ahlukeneyo okungcola / iziphene / i-oxidation (valence) yamazwe
-ngenxa yeemeko ezahlukeneyo zokukhula kunye nokuthotywa kwe-Eu:CaF2 crystal.
