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Comparison of Fast Scintillators With TOF PET Potential.
- Source :
- IEEE Transactions on Nuclear Science; Jun2009 Part 2 of 3, Vol. 56 Issue 3, p926-933, 8p
- Publication Year :
- 2009
-
Abstract
- The renewed interest in Time-Of-Flight (TOF) Positron Emission Tomography (PET) has been accompanied by new research in the development of fast scintillators, mainly halides and/or lutetium-based compounds doped with Ce or Pr. In this work we measure some intrinsic properties of these materials, such as decay time and light output, which have a direct effect on time resolution, the key performance parameter for a TOF-grade detector. In particular, we report on measurements on LSO:Ce, LuAG:Pr, LuYAP:Ce, LaBr<subscript>3</subscript>:Ce and LaCl<subscript>3</subscript>:Ce. The scintillators are characterized in terms of absolute light yield, decay time, energy resolution, emission and excitation spectra, and time resolution. A new figure of merit to compare scintillators based on their performance in a TOF PET scanner is introduced. This figure of merit, the TOF effective sensitivity η, includes both interaction probability and timing characteristics. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189499
- Volume :
- 56
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Nuclear Science
- Publication Type :
- Academic Journal
- Accession number :
- 43245506
- Full Text :
- https://doi.org/10.1109/TNS.2008.2009446