Griff Bowen reflects on being part of the very start of the UK's nuclear energy programme.
Thames Valley Police says it was called to the incident in East Hendred at 07:20 BST on Thursday.
The so-called "HIF1" project will see a new bypass, Thames crossing and railway bridge built.
A 64-year-old woman died of multiple injuries in Harwell, Oxfordshire, on Tuesday evening.
Thames Valley Police said the man remained in custody following the incident in Harwell on Tuesday.
The spectacle, known as The Beam, marked the 80th birthday of Harwell Science Campus in Oxfordshire.
The visual spectacle, known as The Beam, marked the 80th birthday of Harwell Campus.
The site has been earmarked for the development of office, laboratory and manufacturing space.
The technology- made in Southampton and tested in Oxfordshire - is currently orbiting Earth
