Title of article
Study of TOF PET using Cherenkov light
Author/Authors
Korpar، نويسنده , , S. and Dolenec، نويسنده , , R. and Kri?an، نويسنده , , P. and Pestotnik، نويسنده , , R. and Stanovnik، نويسنده , , A.، نويسنده ,
Pages
7
From page
532
To page
538
Abstract
This work investigates the possibilities of improving the measurements of arrival time difference of the two 511 keV photons arising from annihilation of a positron in positron emission tomography (PET). The new technique of detecting the prompt Cherenkov light, produced by absorption of the annihilation photon in a suitable crystal, could considerably improve the image quality. A simple apparatus with PbF2 crystals and microchannel plate photomultipliers (MCP PMTs) has been constructed and coincidence resolutions of 71 ps FWHM and 95 ps FWHM have been achieved with 5 and 15 mm thick crystals, respectively. Simulation calculations are in agreement with the experimental findings.
Keywords
PET , Cherenkov radiation , Microchannel plate photomultipliers , Lead tungstate , Lead fluoride , Time-of-flight
Journal title
Astroparticle Physics
Record number
2018157
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