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Optimization of detector modules for measuring gamma-ray polarization in Positron Emission Tomography

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT (2022)

Photon quantum entanglement in the MeV regime and its application in PET imaging

D. P. Watts et al.

Summary: PET is a widely-used imaging modality for medical research and clinical diagnosis, with radiotracer imaging obtained from the detected hit positions of the two positron annihilation photons. The study shows that the two annihilation photons are predicted to be produced in a quantum-entangled state, allowing for the evaluation and removal of unwanted backgrounds in PET using quantum entanglement information.

NATURE COMMUNICATIONS (2021)

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Article Physics, Condensed Matter

Study of Multi-Pixel Scintillator Detector Configurations for Measuring Polarized Gamma Radiation

Ana Marija Kozuljevic et al.

Summary: This passage discusses the creation of gamma photons with orthogonal polarizations when a positron annihilates, and the use of coincidence measurements for estimating their initial relative polarization orientation. The study utilizes Monte Carlo simulations to model two detector configurations for measuring gamma-ray polarization in PET, with the configuration based on GAGG crystals demonstrating slightly better polarimetric performance than the one based on LYSO crystals.

CONDENSED MATTER (2021)

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Article Instruments & Instrumentation