PSMR2024 10th Conference on PET, SPECT, and MR Multimodal Technologies, Total Body and Fast Timing in Medical Imaging

Session

Scintillators for fast timing

21 May 2024, 11:00

La Biodola, Isola d'Elba

Conveners

Scintillators for fast timing

• William Moses
• Georgios Konstantinou (EPFL)

22. Harnessing the Purcell Effect for Faster Metascintillators

Paul Lecoq (Universitat Politècnica de València, Metacrystal, CERN)

21/05/2024, 11:00

Fast timing

Oral

This study proposes a second-generation metascintillator to improve the coincidence time resolution of scintillators, critical for enhancing signal-to-noise ratio in time-of-flight positron emission tomography (TOF-PET). Leveraging nanophotonic features, particularly the Purcell effect, we enhance scintillation properties. Our findings show a 1.6-fold improvement in coincidence time...

83. Comparative Experimental and Simulation DOI Analysis on Semi-Monolithic Metascintillators

Riccardo Latella (Universidad Politécnica de Valencia)

21/05/2024, 11:20

Fast timing

Oral

This study compares the depth of interaction (DOI) performance of semi-monolithic metascintillators (SMMS) of dimensions 25.4x25.4x24 mm³ and standard semi-monolithic scintillators (SMON) of dimensions 25.4x25.4x20 mm³. The SMMS comprises LYSO:Ce interleaved with EJ232 organic scintillators, while the SMON contains eight slabs of LYSO:Ce.
The experimental findings demonstrated comparable...

30. TlCl:Be,I: a high sensitivity scintillation and Cherenkov emitter for TOF-PET

Nicolaus Kratochwil (UC Davis, Department of Biomedical Engineering)

21/05/2024, 11:40

Fast timing

Oral

The material requirements for gamma-ray detectors for medical imaging applications are multi-fold and sensitivity is often overlooked when aiming for the best timing performance. High effective atomic number (Z$_{\text{eff}}$) Cherenkov radiators have raised the attention in the community due to their potential for harvesting prompt photons. A material with one of the highest...

55. High loading nanocomposites of cesium lead halide nanocrystals for fast timing

Jan Král (Czech Technical University in Prague, Institute of Physics CAS)

21/05/2024, 12:00

Fast timing

Oral

Cesium lead halide nanocrystals are widely studied in many fields for their excellent luminescent properties. Recently, their potential for fast timing applications in radiation detection has been demonstrated. To ensure material stability, these nanocrystals are often embedded into a polymer matrix, forming nanocomposite scintillators. However, most research on nanocomposites focuses on low...

82. Comparative Analysis of Novel Time-Walk Correction Methods for Metascintillators

Riccardo Latella (Universidad Politécnica de Valencia)

21/05/2024, 12:20

Fast timing

Oral

Development of novel scintillator materials and effective Time-Walk Correction (TWC) methods aim to improve coincidence time resolutions (CTRs) in Time-of-Flight Positron Emission Tomography (ToF-PET) systems. This study introduces an innovative approach using metascintillators coupled with advanced photodetector technologies to address the limitations of time-walk effects on CTR. We evaluated...