Abstract
Scintillation and optical stimulated luminescence of Ce 0.1-20% doped CaF2 crystals prepared by Tokuyama Corp. were investigated. In X-ray induced scintillation spectra, luminescence due to Ce3+ 5d-4f transition appeared around 320 nm with typically 40 ns decay time. By 241Am 5.5 MeV α-ray irradiation, 0.1% doped one showed the highest scintillation light yield and the light yield monotonically decreased with Ce concentrations. Optically stimulated luminescence after X-ray irradiation was observed around 320 nm under 550 or 830 nm stimulation in all samples. As a result, intensities of optically stimulated luminescence were proportional to Ce concentrations. Consequently, scintillation and optically stimulated luminescence resulted to have a complementary relation in Ce-doped CaF2 system.
Original language | English |
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Pages (from-to) | 162-165 |
Number of pages | 4 |
Journal | Radiation Measurements |
Volume | 71 |
DOIs | |
Publication status | Published - 2014 Dec |
Externally published | Yes |
Keywords
- CaF
- Ce
- OSL
- Scintillation
- Scintillator
ASJC Scopus subject areas
- Radiation
- Instrumentation