Use of Cherenkov light in TOF-PET

Pestotnik, R. (2020) Use of Cherenkov light in TOF-PET. Il nuovo cimento C, 43 (1). pp. 1-9. ISSN 1826-9885

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Abstract

The time-of-flight resolution of PET scanners is limited by the timing spread due to delayed scintillation emission. By using prompt Cherenkov photons instead, the coincidence timing resolution can be improved. The improvement is limited by the photon travel time spread in the crystals. By segmenting the crystals, the remaining contribution is due to the intrinsic time resolution of the photosensors. In this contribution, we evaluate the feasibility of using lead fluoride in Cherenkov-light–based PET scanner with silicon photomultipliers. Due to a significantly lower price of lead fluoride compared to an L(Y)SO scintillator, such a scanner is a competitive option already with the use of current silicon photomultipliers which have a single photon time spread of around 100 ps.

Item Type:	Article
Subjects:	500 Scienze naturali e Matematica > 530 Fisica
Depositing User:	Marina Spanti
Date Deposited:	29 Jan 2021 15:26
Last Modified:	29 Jan 2021 15:26
URI:	http://eprints.bice.rm.cnr.it/id/eprint/20731

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