The role of gadolinium in the scintillation processes of cerium-doped gadolinium oxyorthosilicate
Abstract
The origins of two decay constants in the scintillation decay of cerium-doped gadolinium oxyorthosilicate (Gd 2(SiO 4)O:Ce) are investigated using UV light. We find that build-ups and long decay components observed with gamma-ray excitation are due to non-radiative energy transfer from Gd to Ce. The transfer rate from Gd to Ce increases as the Ce concentration increases. The gamma-ray excited decay curves of GSO are composed of prompt Ce emission and delayed Ce emission (transfer of energy through Gd), as observed by UV excitation.
- Publication:
-
Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- August 1994
- DOI:
- 10.1016/0168-9002(94)90586-X
- Bibcode:
- 1994NIMPA.346..510S