Direct gamma-ray detection with strip TlBr detectors for nuclear medicine applications
| Autor: | Junwei Du, Hadong Kim, Gregory S. Mitchell, Leonard J. Cirignano, Gerard Ariño-Estrada, Simon R. Cherry, Kanai S. Shah |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
LSO crystal 010308 nuclear & particles physics business.industry Resolution (electron density) Detector STRIPS 01 natural sciences 030218 nuclear medicine & medical imaging law.invention 03 medical and health sciences Full width at half maximum Intrinsic spatial resolution 0302 clinical medicine Optics law 0103 physical sciences business Nuclear medicine Image resolution Gamma ray detection |
| Zdroj: | 2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD). |
| DOI: | 10.1109/nssmic.2016.8069963 |
| Popis: | This work reports on the characterization of TlBr detectors for use in nuclear medicine. Several different detectors have been used to assess the potential performance of the material. A 12 mm thick detector with a Frisch collar has been used to achieve an energy resolution of 3.5% at 511 keV and 2.3% at 662 keV. A 0.4 mm thick detector biased at 200 V has been operated in coincidence with an LSO crystal coupled to a PMT and a timing resolution of 24 ns FWHM has been obtained by gating the energy of the events. A strip TlBr detector with 0.4 mm width strips and 0.1 mm inter-strip separation has been used to measure the intrinsic spatial resolution to the level of 1 mm (a result limited by the setup geometry). The results show promising results of TlBr detectors for nuclear medicine applications. |
| Databáze: | OpenAIRE |
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