The role of gadolinium in the scintillation processes of cerium-doped gadolinium oxyorthosilicate

✍ Scribed by H. Suzuki; T.A. Tombrello; C.L. Melcher; C.A. Peterson; J.S. Schweitzer

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 924 KB
• Volume: 346
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/0168-9002(94)90586-x

✦ Synopsis

The origins of two decay constants in the scintillation decay of cerium-doped gadolinium oxyorthosilicate (Gd z(Si04 )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 Cc 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 .