| 摘要 |
The invention relates to an inorganic scintillator material of formula Lu<SUB>(2-y)</SUB>Y<SUB>(y-x)</SUB>Ce<SUB>x</SUB>M<SUB>z</SUB>Si<SUB>(1-v)</SUB>M'<SUB>v</SUB>O<SUB>5</SUB>, in which: M represents a divalent alkaline earth metal and M' represents a trivalent metal, (z+v) being greater than or equal to 0.0001 and less than or equal to 0.2, z being greater than or equal to 0 and less than or equal to 0.2; v being greater than or equal to 0 and less than or equal to 0.2, x being greater than or equal to 0.0001 and less than 0.1; and v ranging from (x+z) to 1. In particular, this material may equip scintillation detectors for applications in industry, for the medical field (scanners) and/or for detection in oil drilling, The presence of Ca in the crystal reduces the afterglow, while stopping power for high-energy radiation remains high. |
