Positronium is the simplest bound state, built of an electron and a positron. Studies of
positronium in vacuum and its decays in medium tell us about quantum electrodynamics …

This paper reviews the ecosystem of GATE, an open-source Monte Carlo toolkit for medical
physics. Based on the shoulders of Geant4, the principal modules (geometry, physics …

Positronium is abundantly produced within the molecular voids of a patient's body during
positron emission tomography (PET). Its properties dynamically respond to the submolecular …

Recently introduced long-axial field-of-view (LAFOV) PET/CT systems represent one of the
most significant advancements in nuclear medicine since the advent of multi-modality …

Discrete symmetries play an important role in particle physics with violation of CP connected
to the matter-antimatter imbalance in the Universe. We report the most precise test of P, T …

Pioneering investigations on the usage of positron-emission-tomography (PET) for the
monitoring of ion beam therapy with light (protons, helium) and heavier (stable and …

In this review article, we present arguments demonstrating that the advent of high sensitivity
total-body PET systems and the invention of the method of positronium imaging, open …

The objective of this work is to showcase the ortho-positronium lifetime as a probe for soft-
tissue characterization. We employed positron annihilation lifetime spectroscopy to …

Positron emission tomography (PET) imaging is the most quantitative modality for assessing
disease activity at the molecular and cellular levels, and therefore, it allows monitoring its …

Background Positron emission tomography (PET) traditionally uses coincident annihilation
photons emitted from a positron interacting with an electron to localize cancer within the …