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

fYear

2008

fDate

4-9 May 2008

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

iet

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

Type

conf

Filename

4572142