Estimation of Timing Resolution for Very Fast Time-Of-Flight Detectors in Monte Carlo Simulations

Nikos Efthimiou, Elise Emond, Chris Cawthorne, Charalampos Tsoumpas, Kris Thielemans

OnderzoeksoutputAcademicpeer review

2 Citaten (Scopus)


In PET imaging the depth of absorption in the crystal contributes to the detection time uncertainty, which impacts the time resolution of the scatter. In addition, affects the nature of the timing distribution. It was found that when Photon Travel Spread (PTS) in the crystal is the only factor affecting the timing uncertainty, in which case, a Laplace kernel might describe the measured data, more accurately. It was shown that for crystals as thin as 20 mm the RMSE of the Laplace was smaller than that of a Normal. While when PTS is combined with an addition coincidence detection resolution (CDR) then, a Normal achieves better RMSE, but with dependency on the crystal size. Results in terms of CRC, of a simulated NEMA phantom, confirmed that reconstruction using a Laplace kernel can model the data better for thicker crystals.

Originele taal-2English
Titel2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC)
UitgeverijInstitute of Electrical and Electronics Engineers Inc.
Aantal pagina's4
ISBN van elektronische versie9781538684948
StatusPublished - nov.-2018
Extern gepubliceerdJa
Evenement2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018 - Sydney, Australia
Duur: 10-nov.-201817-nov.-2018


Conference2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018

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