Journal
CRYSTENGCOMM
Volume 24, Issue 40, Pages 7066-7072Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ce01057g
Keywords
-
Categories
Funding
- National Academy of Science of Ukraine
- International Research Project ScintLab of CNRS
- French-Ukrainian bilateral project Dnipro
- Ministry of Science and Education of Ukraine [M/44-2022]
- ENSEMBLE3 project [MAB/2020/14, 857543]
Ask authors/readers for more resources
Ce-doped lanthanum gadolinium pyrosilicates are efficient oxide scintillation crystals with a high light yield. The use of Czochralski method in a reducing atmosphere and post-growth annealing in an oxidizing atmosphere optimize the crystal growth and improve the scintillation characteristics.
Ce-doped lanthanum gadolinium pyrosilicates are among the most efficient oxide scintillation crystals with a light yield of ca. 40 000 ph MeV-1 and a high energy resolution. Moreover, the process of obtaining these crystals, as well as other rare-earth silicates, involves the use of iridium equipment in a weakly oxidizing gas atmosphere. The work is devoted to the optimization of (La,Gd)(2)Si2O7:Ce (LaGPS:Ce) crystal growth process by the Czochralski method from tungsten crucibles in a reducing atmosphere and characterization of this material. Transparent ingots with a length of up to 40 mm were obtained. Post-growth high-temperature annealing in an oxidizing atmosphere significantly improves the scintillation characteristics of LaGPS:Ce, which are not inferior to those in crystals obtained by a conventional technology from iridium crucibles.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available