Professor John Womersley previously held the position of Chief Executive of the Science and Technology Facilities Council (STFC).
A graduate of Cambridge and Oxford (D. Phil. Experimental Particle Physics), he has played a leading role in particle physics both in Europe and the United States. Womersley worked at the Florida State University and Fermilab before becoming a scientific advisor to the Department of Energy in the US. He returned to the UK in 2005 to become Director of the Particle Physics Department at the STFC Rutherford Appleton Laboratory at a time when it was building and delivering vital components to CERN's Large Hadron Collider.