John Large
John H. Large is an English consulting Chartered Engineer primarily known for his work in assessing and reporting upon nuclear safety and nuclear related accidents and incidents, work which has often featured in the media.
From the mid-1960s until 1986 Large was an academic in Brunel University's School of Engineering, where he undertook research for the United Kingdom Atomic Energy Authority.
In 1986, he founded the London-based consulting engineers Large & Associates, which specialises in analysis of and reporting on failure of engineering systems, particularly in the nuclear field.
He advised the Government of Gibraltar on nuclear safety aspects of the repairs being undertaken to the nuclear propulsion reactor on board HMS Tireless during 2000.
Large formed and led the nuclear risk assessment team involved in raising of the sunken and severely damaged Russian nuclear submarine Kursk in 2001 - the world's first successful recovery of a nuclear powered submarine.
He provided technical evidence in the Friends of the Earth legal action over the failure of the steam generators of the Southern California San Onofre Nuclear Generating Station in 2013.
He reported upon the so-called 'carbon anomaly' that resulted in the temporary shutdown and resumption to power generation under restrictive conditions of 18 French nuclear power plants in 2016-17. Separately, he advised on related quality control issues in Japan.
At times, Large has been critical of the nuclear power industry, and has been commissioned by Greenpeace and other national and international NGOs to provide technical analysis on nuclear issues.
In 1985 Large was invited by House of Commons Environment Committee to submit evidence on environmental issues associated with radioactive waste at the UK's irradiated fuel reprocessing works at Sellafield. He provided the Committee with a technical note on the breakaway corrosion of Magnox nuclear fuel, demonstrating the then hitherto undisclosed highly unstable pyrophoric reaction. Resulting from this disclosure, he provided evidence on the secrecy practised by the UK nuclear industry.
...
Wikipedia