2016 年 43 巻 1 号 p. 47-53
We have developed novel scintillation crystals based on Ce-doped (Gd,La)2Si2O7 grown by the floating zone and Czochralski methods for oil well logging. The light output of 35,000 photons/MeV or more was kept in the temperature range from 25 to 150 ºC for these crystals. Ce: (Gd, La)2Si2O7 single crystals can be applied to oil well logging and other radiation detection application under high temperature conditions.