New series of the podcast! New name for the Podcast! The PEM Podcast is now Röntgen's Radio (A Physics and Engineering in Medicine Podcast), a tribute to the discoverer of the x-ray. The first episode of this series is with Dr Rob Moss, Lecturer in Applied Radiation Physics at University College London. Rob tells us about his research in x-ray diffraction, explaining how he started in security applications before coming to identify cancers and create new x-ray detectors.