What are magnetic fields in the galaxy?

Bruno Touschek gave a talk on electron-positron collisions that would change the face of physics. Last November, 20 years after his death, physicists gathered ... Jul 1, 1988 ... In the first part the authors discuss the process of positron moderation and technical aspects of positron ... The APS Physics logo and Physics ... XXI International Workshop on Low-Energy Positron and Positronium Physics and XXIII International Symposium on Electron-Molecule Collisions and Swarms. Apr 28, 2022 ... This white-paper describes the current status of the field and provides R\&D short-term and long-term pathways for polarized positron sources. Welcome to the Laboratory of Positron and Positronium Physics. Sometimes you are only able to find a solution when looking from a different angle. What is Single Photon Emission Computed Tomography (SPECT)?; What is Positron Emission Tomography (PET)?; What are nuclear medicine scans used for? Are there ... Feb 25, 2020 ... I'm interested in the decay of the first excited state of Zr-90. It is the source of the tiny positron branch in the decay of Y-90 and can be used for PET ... Abstract. Recent advances in slow positron beam techniques are making it possible to study the interactions of low-energy positrons with gas molecules and solid ... Positron emission tomography (PET) is a type of nuclear medicine procedure that measures metabolic activity of the cells of body tissues. Jan 4, 2012 ... ... positron emission or beta plus decay, and it is another type ... Physicist Brian Cox explains quantum physics in 22 minutes. Big Think ...