THE ROLE OF GADOLINIUM IN THE SCINTILLATION PROCESSES OF CERIUM-DOPEDGADOLINIUM OXYORTHOSILICATE

Authors
SUZUKI H TOMBRELLO TA MELCHER CL PETERSON CA SCHWEITZER JS
Citation
H. Suzuki et al., THE ROLE OF GADOLINIUM IN THE SCINTILLATION PROCESSES OF CERIUM-DOPEDGADOLINIUM OXYORTHOSILICATE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 346(3), 1994, pp. 510-521
Citations number
32
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
346
Issue
3
Year of publication
1994
Pages
510 - 521
Database
ISI
SICI code
0168-9002(1994)346:3<510:TROGIT>2.0.ZU;2-X
Abstract
The origins of two decay constants in the scintillation decay of ceriu m-doped gadolinium oxyorthosilicate (Gd2(SiO4)O:Ce) are investigated u sing UV light. We find that build-ups and long decay components observ ed 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 con centration increases. The gamma-ray excited decay curves of GSO are co mposed of prompt Ce emission and delayed Ce emission (transfer of ener gy through Gd), as observed by UV excitation.