Abstract
The coincidence timing resolution is a critical performance parameter to determine if direct gamma-ray detection by semiconductor detector materials such as CdTe or CdZnTe may be suitable for use in positron emission tomography (PET) systems. We report experimental results of the coincidence timing resolution measured with a pair of 2×2×10 mm 3 CdTe detectors irradiated by 511 keV gamma rays under conditions that allow good timing resolution and good energy resolution to be obtained simultaneously. The measured coincidence time resolutions ranged from 14 ns (350 keV lower energy threshold) to 24 ns (100 keV lower energy threshold). We also found that the coincidence timing resolution was proportional to the signal rise time, and that both of these were proportional to the electron transit time.
Original language | English (US) |
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Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
Publisher | Society of Photo-Optical Instrumentation Engineers |
Pages | 254-264 |
Number of pages | 11 |
Volume | 4142 |
DOIs | |
State | Published - 2000 |
Event | Penetrating Radiation Systems and Applications II - San Diego, CA, USA Duration: Aug 2 2000 → Aug 3 2000 |
Other
Other | Penetrating Radiation Systems and Applications II |
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City | San Diego, CA, USA |
Period | 8/2/00 → 8/3/00 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics