According to the present invention, it has become possible to provide {TAIL ~ a scintillator} wherein the performance is high with {HEAD ~ respect} to luminescence intensity and attenuation rate, and specifically speaking, the luminescence intensity is stronger and the density is higher than CeF3, the attenuation time is shorter than GSO and LSO, and moreover, crystal raising is comparatively easy 
According to the present invention , it has become possible to provide { TAIL ~ a scintillator } wherein the performance is high with { HEAD ~ respect } to luminescence intensity and attenuation rate , and specifically speaking , the luminescence intensity is stronger and the density is higher than CeF3 , the attenuation time is shorter than GSO and LSO , and moreover , crystal raising is comparatively easy
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