Patent ID: 8506845

Claim:
A scintillator material comprising: a compound represented by a general formula [Cs 1-z Rb z ][I 1-x-y Br x Cl y ]:In, wherein x, y, and z satisfy any one of conditions (1), (2), and (3) below: (1) when 0<x+y<1 and z=0, at least one of Mathematical formula 1 and Mathematical formula 2 is satisfied; 0<x≦0.7 [Math. 1] 0<y≦0.8 [Math. 2] (2) when 0<x+y<1 and 0<z<1, at least one of Mathematical formula 3 and 0<y<1 is satisfied; and 0<x≦0.8 [Math. 3] (3) when x=y=0, the relationship 0<z<1 is satisfied, and the content of indium (In) is 0.00010 mole percent or more and 1.0 mole percent or less relative to [Cs 1-z Rb z ][I 1-x-y Br x Cl y ].