No, this isn’t Mace Windu’s light …

Posted on by mikee

No, this isn’t Mace Windu’s lightsaber!
It is the trace left by a beam of negative hydrogen (H−) ions ionising a gas inside Linac4. The gas is injected into the accelerator to mitigate repulsion between particles with the same charge.

Find out more: https://home.cern/science/accelerators/linear-accelerator-4 …