Tiniest particle accelerator is so small it could fit into a pen tip

A particle accelerator that measures just 0.2 mm in length uses laser light to accelerate electrons to speeds of a hundred thousand kilometres per second

​A particle accelerator that measures just 0.2 mm in length uses laser light to accelerate electrons to speeds of a hundred thousand kilometres per second A particle accelerator that measures just 0.2 mm in length uses laser light to accelerate electrons to speeds of a hundred thousand kilometres per second