Key Personnel

Roy JohnsonRoy Johnson – Executive Chairman, Founder

Mr Johnson has over 25 years’ experience in the medical device and diagnostics sector, operating at board level in both the UK and the USA.

He is particularly conversant with bringing complex technology to market, developing worldwide distribution networks, and negotiating and managing strategic relationships with some of the industry’s leading players.

Roy is currently Executive Chairman, NED or consultant with a portfolio of businesses, spanning medical imaging, diagnostics, devices and analytical instrumentation.



Professor Alan PreeceProfessor Alan Preece – Consultant, Founder

Currently Emeritus Professor in the Department of Medical Physics at the University of Bristol and honorary Consultant Clinical Scientist with the United Bristol Healthcare Trust (UBHT). Previously Head of Biophysics Unit, Department of Medical Physics and Professor of Medical Physics, University of Bristol.

Alan is a board member of the Bioelectromagnetics Society (USA) and the European Bioelectromagnetics Society, a Fellow of the Institute of Physics and Engineering in Medicine.

He has delivered numerous invited lectures worldwide and has received numerous prizes for his work.




Dr Ian CraddockProfessor Ian Craddock – Non Executive Director, Founder

Currently Professor, University of Bristol, and scientific project leader, heading the University’s radar imaging group.

He has published almost 100 papers on topics including Electromagnetics, Antennas and Imaging. He was personally awarded the 2005 IEE J. A. Lodge prize for outstanding work in Medical Electronics. He regularly delivers invited papers at the leading European, Asian and North American conferences in his subject area.

He chairs and convenes sessions on Radar and Imaging at international conferences, is a Member of Advisory Panel to an IET Personal Network on Antennas & Propagation and a Member of the Editorial Board for IET Proceedings on Microwaves, Antennas and Propagation.


Professor Ralph Benjamin – Consultant

Currently Visiting Professor at Imperial University and the University of Bristol. Previously Deputy Chief Scientist and Head of Research, Admiralty Surface Weapons Establishment, Chief Scientist of the Admiralty Underwater Weapons Establishment, Chief Scientist and Superintending Director of GCHQ and Head of Communications Techniques and Networks at NATO Supreme HQ.

He has served the IEE as Council Member and Member of the Electronics Board and is a Sensor Technology Board member of the Defence Scientific Advisory Council. He is the inventor of the original imaging patents, and throughout his career has successfully led numerous new developments in the sensor field, publishing several hundred papers.

Professor Benjamin is a Fellow of the IEE and a Fellow of the Royal Academy of Engineering.