| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a single crystal for scintillator capable of sufficiently reducing the difference of fluorescent output on the low concentration side and high concentration side of cerium, a method of heat treatment for manufacturing the same and a method of manufacturing the same. <P>SOLUTION: This single crystal for scintillator is represented by general formula (1): Gd<SB>2-(a+x+y+z)</SB>Ln<SB>a</SB>Lu<SB>x</SB>Ce<SB>y</SB>Lm<SB>z</SB>SiO<SB>5</SB>and contains cerium-activated ortho silicate compound (wherein Lm represents at least an element selected from the group consisting of Pr, Tb and Tm; Ln represents at least an element selected from lanthanoid elements except Pr, Tb and Tm, and Sc and Y; a represents a value not smaller than 0 and less than 1; x represents a value greater than 1 and less than 2; y represents a value greater than 0 and not greater than 0.01; and z represents a value greater than 0 and not greater than 0.01, and a+x+y+z has a value of not greater than 2). <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
