News tagged with particle beam

CERN's two-year shutdown drawing to a close

It's almost two years to the day since the team in the CERN Control Centre switched off the beams in the Large Hadron Collider (LHC) at 7.24am on 14 February 2013, marking the end of the accelerator's first ...

Feb 13, 2015
4.8 / 5 (25) 5

Deformable mirror corrects errors

Very high power is needed to cut or weld using a laser beam. But this creates its own problem: the beam's energy deforms the mirrors that are focusing it to a point. When this happens, the beam expands and ...

May 14, 2014
5 / 5 (7) 1

The debut of the antihydrogen beam

The standard model of particle physics suggests that matter and antimatter are equal and opposite in every way. Yet the observable Universe is made almost entirely of matter—an asymmetry that remains one ...

Mar 07, 2014
4.9 / 5 (19) 2