[Lamplighter]

Originally Posted by tw

The article does not mention what has changed...

About 27,000 copper wires were added in this "For want of a nail, a collider was lost..." syndrome.

Engineers fixed the damage, replacing magnets along nearly 2,000 feet of the accelerator ring. During the recent shutdown, they made a slew of upgrades, but the most important one was just to make sure nothing blows up again. It took a year and a half for 300 people to reinforce the 10,000 connections between magnets with 27,000 pieces of copper. Now, if electric current starts to build up, the beefed-up connections will give all that energy someplace to go. The engineers also replaced 18 magnets that had worn out, upgraded electronics to make them more resistant to radiation, and added a new coating to the inside of the vacuum tube carrying the protons that should prevent stray electrons from forming a cloud that would interfere with the beam.