Title :
Fast-decay-time scintillation of LaF3:Ce colloidal nanocrystals
Author :
Withers, Nathan ; Sankar, Krishnaprasad ; Memon, Tosifa A. ; Akins, Brian A. ; Gu, Jiangjiang ; Gu, Tingyi ; Smolyakov, Gennady A. ; Osinski, Marek
Author_Institution :
Center for High Technol. Mater., New Mexico Univ., Albuquerque, NM
Abstract :
Positron emission tomography requires high-brightness fast-decay scintillators for coincidence counting of positron annihilation events. We demonstrate that LaF3:Ce nanocrystals show promising characteristics for that application. Scintillation response and photoluminescence lifetime below 27 ns are measured.
Keywords :
cerium; coincidence techniques; colloidal crystals; lanthanum compounds; nanostructured materials; photoluminescence; positron annihilation; positron emission tomography; radiative lifetimes; scintillation; solid scintillation detectors; LaF3:Ce; coincidence counting; colloidal nanocrystals; fast-decay-time scintillation; photoluminescence lifetime; positron annihilation events; positron emission tomography; Lifetime estimation; Nanocrystals; Open systems; Optical imaging; Optical materials; Optical scattering; Photoluminescence; Positron emission tomography; Stimulated emission; Testing; (160.4236) Nanomaterials; (170.2670) Gamma ray imaging;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
