Stewart Hay

Stewart is a Chartered Physicist, criticality safety and radiation shielding assessor. He is also a co-founder and Director of Cerberus Nuclear and represents the company on the UK Working Party on Criticality (WPC). For over 16 years Stewart has worked across the UK nuclear industry with long-term secondments to a number of key clients including URENCO, AWE and NNL.  His project work has involved working with other safety disciplines, design engineers, plant management and regulators to achieve fit for purpose designs and processes. Stewart is a highly experienced user of various computer codes, including MCNP, MONK, ATTILA and MCBEND, and has produced validation and verification documentation for a number of clients. Stewart is also an effective mentor of graduate and early career criticality assessors and has extensive experience of supervising the work of trainee criticality assessors.