A radiation sensing material

A radiation sensing material represented by the following formula (I):

• (M1′8-2aM2′a)(M″14-(4b/3)M′″b)O24(X2-dcdX′nc−):M″″ formula (I)
• wherein
• M1′ represents a monovalent monoatomic cation of an alkali metal selected from Group 1 of the IUPAC periodic table of the elements, or any combination of such cations;
• M2′ represents a divalent monoatomic cation of an alkaline earth metal selected from Group 2 of the IUPAC periodic table of the elements, or any combination of such cations;
• M″ represents a trivalent monoatomic cation of an element selected from Group 13 of the IUPAC periodic table of the elements, or any combination of such cations;
• M′″ represents a monoatomic cation of an element selected from Group 14 of the IUPAC periodic table of the elements, or any combination of such cations;
• X represents an anion of an element selected from the halogens of Group 17 of the IUPAC periodic table of the elements, or any combination of such anions;
• X′ represents an anion of one or more elements selected from the chalcogens of Group 16 of the IUPAC periodic table of the elements, or any combination of such anions;
• M″″ represents a dopant cation of an element selected from rare earth metals of the IUPAC periodic table of the elements, or from transition metals of the IUPAC periodic table of the elements, or of Ba, Sr, TI, Pb, or Bi, or any combination of such cations, or wherein M″″ is absent;
• and
• a is a value of 0.05-4
• b is a value of 1-10
• c is a value of 1, 2, 3, or 4
• d is a value of above 0-2
• n is a value of 1, 2, 3, or 4.