Gadolinium pyrosilicate single crystals for gamma ray and thermal neutron monitoring

Growth of bulk gadolinium pyrosilicate single crystals for scintillators

“…These materials have scintillation properties similar to orthosilicates, additionally, they demonstrate much lower afterglow level and absence of luminescence quenching in the wide temperature range [4,6]. Due to large cross-section of thermal neutron capture by Gd, GPS:Ce is capable for registration of this type of particles.…”

The influence of Sc/Lu ratio on the phase transformation and luminescence of cerium-doped lutetium scandium orthoborate solid solutions

“…Nowadays, many researchers are devoting to researching and optimizing the existing scintillation crystals [1][2][3][4], and also developing new scintillators such as Y 2 Si 2 O 7 :Ce, Gd 2 Si 2 O 7 :Ce and MgWO 4 [5][6][7]. Nevertheless, there are still many novel crystals deserved to be developed.…”

Growth and characterization of tetragonal structure modification of β-Gd2Si2O7:Ce

“…Pyrosilicates demonstrate attractive scintillation characteristics at monitoring of ␥-radiation [5,6] and thermal neutrons [7], in particular, outstanding light yield stability at elevated temperatures. Recently, growth procedure, and scintillation and luminescence characteristics of Ce-doped Gd 2 Si 2 O 7 (GPS) [8] and Y 2 Si 2 O 7 [9], Pr 3+ -doped Lu 2 Si 2 O 7 (LPS) [10,11] and Gd 2 Si 2 O 7 [12], and Eu-doped Y 2 Si 2 O 7 and La 2 Si 2 O 7 [13] were reported.…”

“…There are two known methods to overcome this problem. The first one was demonstrated in [8,15,16] where GPS:Ce or GPS:Pr single crystals were obtained by the Floating Zone and Czochralski methods from stoichiometric melt with heavy (up to 25 at.%) Ce 3+ and Pr 3+ doping, correspondingly. It was assumed [15] that the heavy doping changes phase diagram and enables direct crystallization of single crystalline samples from the melt.…”