Fast Timing in Medical Imaging

We report in this article on the Fast Timing in Medical Imaging workshop, (Valencia, 2 June 2022). The workshop gathered 104 attendees from all over the world, with representatives from the academic and industrial sectors. During three very dense days, nuclear medicine physicians, radiologists, oncologists, immunologists, and biologists have debated with physicists, engineers, technologists of different disciplines, as well as with medical imaging industry representatives to devise about the importance of improving the timing performance of a new generation of medical imaging instrumentation, with a special focus on positron emission tomography scanners toward the ultimate goal of 10-ps coincidence time resolution (CTR), allowing a millimeter 3-D spatial resolution on an event-to-event basis by time-of-flight (TOF) techniques. This article summarizes the most up-to-date developments on the roadmap toward the 10-ps time of flight challenge based on the contributions to this workshop.