World leading radiation protection advice and services

UKHSA is the UK's primary authority carrying out research to advance knowledge about protection from the risks of radiation. We provide world-leading advice, training and services for the widest range of radiation protection safety professionals and organisations.


PACE (Probabilistic Accident Consequence Evaluation) is a tool for performing Level-3 Probabilistic Safety Analysis (PSA). Level-3 PSA is the evaluation of off-site consequences given a release of radioactive material to the atmosphere from a facility.