Evaluation of photoluminescence and scintillation properties of Eu‐doped 20CsCl–20BaCl2–60ZnCl2 glasses by a melt quenching method

Optical and Optically Stimulated Luminescence Properties of Ce-doped CsCl–CaCl2–ZnCl2 Glasses

“…(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31) In our previous studies, we investigated Eu-or Ce-doped 20CsCl-20BaCl 2 -60ZnCl 2 (CBZ) glasses and clarified that Ce-doped samples showed high PL quantum yields (QYs) of 75.7%. (32,33) However, most previous studies on the dosimetric properties of glasses have examined the TSL and OSL properties of oxide glasses, (34)(35)(36)(37)(38) and there have been no studies evaluating the OSL characteristics of ZnCl 2 -based glasses. In this study, we evaluated the OSL properties of Ce-doped 20CsCl-20CaCl 2 -60ZnCl 2 (CCZ) glasses for the first time, and the effects of doping on optical and OSL characteristics were also investigated.…”

Optical and Scintillation Properties of Eu-doped CsBr–BaBr2–ZnBr2 Glasses

“…Since the absorption band around 350 nm was also confirmed with previous reports on the Eu-doped glasses, the origin was considered be the 4f-5d transitions of Eu 2+ . (38,43,44) Figure 3 shows PL excitation and emission maps of 0.1% Eu-doped 20CsBr-20BaBr 2 -60ZnBr 2 glass as a representative. Under excitation wavelengths of 280-380 nm, the emission band was observed at around 415 nm.…”

“…The excitation and emission spectral shapes of all the Eu-doped glasses were similar to that of the 0.1% Eu-doped glass, which was consistent with previous studies. (38,45) The PL decay curves of Eu-doped 20CsBr-20BaBr 2 -60ZnBr 2 glasses at the monitoring wavelength of 415 nm and excitation wavelength of 340 nm are shown in Fig. 4.…”

“…The faster components were due to the instrumental response function (IRF), and the slower components were typical values for the 5d-4f transitions of Eu 2+ . (38,45,46) Judging from the excitation and emission wavelengths and lifetimes, the origin of the emission at around 415 nm was due to the 5d-4f transitions of Eu 2+ . In contrast, the emission due to Eu 3+ was not confirmed despite doping Eu 3+ ions as the starting powder.…”

“…Recently, there have been a few reports on the scintillation properties of non-oxide glasses such as AEF 2 -Al 2 O 3 -B 2 O 3 (AE = Ca, Sr, Ba), (32)(33)(34) (35) CeCl 3 -CsCl-CsPO 3 -Al(PO 3 ) 3 , (36) and CsCl-BaCl 2 -ZnCl 2 . (37,38) In particular, AEF 2 -Al 2 O 3 -B 2 O 3 shows higher quantum yields (>80%) and light yields (~1800 ph/MeV) than the reported oxide glasses. Thus, non-oxide glasses as scintillators can be considered as promising materials.…”