[1] [1] Lecoq P. The high energy physics demand for a new generation of scintillators ［J］. J. Lumin., 1994, 60-61:948-955.

[2] [2] Moses W W. Derenzo S E. Scintillators for positron emission tomography ［C］. Proceeding of the International Conference on Inorganic Scintillators and Their Applications, Delt Netherlands, 1996: 9-16.

[3] [3] Spurrier M A, Szupryczynski P, Rothfuss H, et al. The effect of co-doping on the growth stability and scintillation properties of lutetium oxyorthosilicate ［J］. J. Cry. Growth., 2008, 310(7-9): 2110-2114.

[5] [5] Brixner L H. New X-ray phosphors ［J］. Mat. Chem. Phys., 1987, 16: 253-281.

[6] [6] Brixner L H, Blasse G. X-ray excited emission spectroscopy of Gd3+in some ATaO4 compounds ［J］. J. Phys. Chem. Solids, 1991, 52: 623-627.

[7] [7] Brixner L H. Luminescence and X-ray studies of the LuTa1-x Nbx O4 ［J］. Inorganica Chimica Acta, 1987, 140: 97-100.

[8] [8] Li B, Gu Z N, Lin J H, et al. X-ray luminescence properties of rare-earth doped orthotantalate ［J］. Materials Research Bulletin, 2000, 35: 1921-1931.

[9] [9] Liu B, Han K, et al. Luminescent properties of GdTaO4 and GdTaO4 :Eu3+under VUV-UV excitation ［J］. Solid State Communications, 2007, 144: 484-487.

[10] [10] Ilmer M, Grabmaier B C, Blasse G. Luminescence of Bi3+in gallate garnets ［J］. Chem. Mater., 1994, 6: 204.

[11] [11] Li B, Gu Z N, Lin J H, et al. Photoluminescence of Eu3+-activated GdTaO4 with both M type and M’ type structures ［J］. J. Mater. Sci., 2000, 35: 1139-1143.

[12] [12] Liu W P, Zhang Q L, Ding L H, et al. Photoluminescence properties of LuTaO4 :RE3+(RE3+=Eu3+, Tb3+) with M’-type structure ［J］. J. Alloys Compd., 2009, 474: 226-228.

[13] [13] Krupa J C, Queffelec M. UV and VUV optical excitations in wide band gap materials doped with rare earth ions: 4f-5d transitions ［J］. J. Alloys Compd., 1997, 250: 287-292.