Paul F Fewster is Head of PANalytical Research Centre, UK. He is also a visiting Professor in Physics at Imperial College, London and Vice-President of the British Crystallographic Association. Paul has worked in the field of X-ray scattering and semiconductors for over 25 years and was awarded the Paterson Prize and Medal from the Institute of Physics (1991) and a DSc in crystallography from London University. He developed the physics for the Materials Research Diffractometer and dynamical simulation analysis software along with many other aspects in the field of X-Ray diffraction.