Development of the fast and efficient gamma detector using Cherenkov light for TOF-PET

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Published 13 December 2017 • © 2017 IOP Publishing Ltd and Sissa Medialab
, , 19th International Workshop on Radiation Imaging Detectors (IWORID2017) Citation C. Canot et al 2017 JINST 12 C12029 DOI 10.1088/1748-0221/12/12/C12029

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Author affiliations

1 Institute of Research into the Fundamental Laws of the Universe (IRFU), CEA, Saclay, France

2 Taras Shevchenko National University of Kyiv, Kyiv, Ukraine

Dates

  1. Received 30 September 2017
  2. Accepted 21 November 2017
  3. Published

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1748-0221/12/12/C12029

Abstract

In this paper we present two configurations of innovative gamma detectors using Cherenkov light for time-of-flight—Positron Emission Tomography (PET). The first uses heavy crystals as a Cherenkov radiator to develop a demonstrator for a whole body PET scanner with high detection efficiency. We demonstrated a 30% detection efficiency and a 180 ps (FWHM) time resolution, mainly limited by the time transit spread of the photomultiplier. The second configuration uses an innovative liquid, the TriMethyl Bismuth, to develop a high precision brain-scanning PET device with time-of-flight capability. According to Geant4 simulation, we expect to reach a precision of 150 ps (FWHM) and an efficiency of about 25%.

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10.1088/1748-0221/12/12/C12029