His career started in 1980 at the Food Irradiation Laboratory of the French Atomic Energy Commission. From 1987 he built and managed large irradiation service centers in France, Thailand, and Malaysia. A freelance consultant since 2006, he also served two years as a food irradiation specialist at the Joint FAO-IAEA Division of the International Atomic Energy Agency in Vienna for which he still frequently works as an expert. He has been the main writer of an E-learning course on food irradiation and a Manual of Good Practice for Food Irradiation. For the International Irradiation Association, he recently created the Phytosanitary Irradiation Platform and drafted a Prospective Accelerator Buyer Guide. He has been a speaker at and co-organizer of numerous international meetings, including the recent International Meetings on Radiation Processing Mr Hénon trained as agronomist specialized in food technology at the Institut National Agronomique in Paris before his MSc in food science and technology in the U.S.