Jul 17 – 24, 2024
Prague
Europe/Prague timezone

Cryogenic CsI as a potential PET material Abstract:

Jul 18, 2024, 5:00 PM
15m
Club C

Club C

Parallel session talk 17. Technology Applications and Industrial Opportunities Technology and Industrial Applications

Speaker

Stefano Roberto Soleti (Lawrence Berkeley National Laboratory)

Description

This study explores the possibility of employing pure cesium iodide (CsI) crystals for a total-body positron emission tomography (TB-PET) device. When operated at cryogenic temperatures, these crystals exhibit an excellent light yield, up to 120 photons/keV, which is approximately four times larger than LYSO. Although CsI has a slightly smaller stopping power and a slower decay time compared with BGO and LYSO, its significantly lower price (3 to 5 times cheaper than its counterparts) could enable the realization of accessible TB-PET devices.
In this project we also investigate the feasibility of using larger, monolithic crystals read out by an array of solid-state photosensors. This approach significantly simplifies the device’s design and assembly, further reducing costs. We show that modern machine learning algorithms for image processing can potentially enable the realization of a monolithic PET with performances analogous or better than a pixelated one.

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Primary authors

Stefano Roberto Soleti (Lawrence Berkeley National Laboratory) Stefano Roberto Soleti (Donostia International Physics Center)

Presentation materials