A single crystal having the general composition, Ce2x(Lu1-yYy)2(1-x)SiO5
where x=approximately 0.00001 to approximately 0.05 and y=approximately 0.0001
to approximately 0.9999; preferably where x ranges from approximately 0.0001 to
approximately 0.001 and y ranges from approximately 0.3 to approximately 0.8. The
crystal is useful as a scintillation detector responsive to gamma ray or similar
high energy radiation. The crystal as scintillation detector has wide application
for the use in the fields of physics, chemistry, medicine, geology and cosmology
because of its enhanced scintillation response to gamma rays, x-rays, cosmic rays
and similar high energy particle radiation.
