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Detector Seminar
Positron Emission Tomography with timing Resistive Plate Chambers: status and perspectives
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Europe/Zurich
13/2-005 (CERN)
Description
Time-of-flight (TOF) measurements in nuclear and heavy-ion HEP have been recently revolutionized by the introduction of timing Resistive Plate Chambers (tRPCs). These planar gaseous detectors offer a time resolution close to 60 ps and efficiency over 99% for MIPs, while keeping the large-area coverage capability and good position resolution that is typical of gaseous detectors.
These properties suggest the application of tRPCs to another time‑critical application: Positron Emission Tomography (PET). The layered structure of RPCs lends itself well to the detection of gamma photons over large sensitive areas by the converter-plate method, while the excellent time resolution allows the TOF-PET technique to be considered. Furthermore, an excellent image resolution is to be expected.
Results from a first prototype aimed at small animals will be presented, featuring an image position resolution of 0.47 mm FWHM - a figure that is close to the physical resolution limits of the PET technique. System sensitivity issues both for animal and human PET will be also discussed.
Organiser(s): Ariella Cattai
These properties suggest the application of tRPCs to another time‑critical application: Positron Emission Tomography (PET). The layered structure of RPCs lends itself well to the detection of gamma photons over large sensitive areas by the converter-plate method, while the excellent time resolution allows the TOF-PET technique to be considered. Furthermore, an excellent image resolution is to be expected.
Results from a first prototype aimed at small animals will be presented, featuring an image position resolution of 0.47 mm FWHM - a figure that is close to the physical resolution limits of the PET technique. System sensitivity issues both for animal and human PET will be also discussed.
Organiser(s): Ariella Cattai