Abstract
Positive hysteresis and radiation tolerance to high-dose radiation exposure were investigated for Ce 0.5, 1, and 1.5%-doped Gd2SiO5 (GSO) and for Zr co-doped GSO with the same Ce concentrations (GSOZ). When they were irradiated by 200-800 Gy 60Co in 200 Gy steps, all Ce-doped GSO samples exhibited light yield enhancement (positive hysteresis). On the other hand, the light yield of GSOZ decreased greatly. Ce 0.5%-doped GSO showed the highest positive hysteresis, with ∼20% light yield enhancement. When the Ce concentration was increased, the positive hysteresis became weaker.
Original language | English |
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Pages (from-to) | 16-20 |
Number of pages | 5 |
Journal | Radiation Measurements |
Volume | 61 |
DOIs | |
Publication status | Published - 2014 Feb |
Externally published | Yes |
Keywords
- GSO
- GSO:Ce
- GSO:Ce Zr codoped
- Gamma-ray
- Positive hysteresis
- Scintillation detector
- Single crystal
ASJC Scopus subject areas
- Radiation
- Instrumentation