Answer:

atomsmasher

Answer	Crossword Clue
ATOMSMASHER	Physics-lab device
ATOMSMASHER	Particle accelerator
ATOMSMASHER	Physicist's device

ATOMSMASHER	Cyclotron.
ATOMSMASHER	Cyclotron
ATOMSMASHER	Nuclear device
ATOMSMASHER	The world's largest one straddles the border of France and Switzerland