Over the winter, the Large Hadron Collider took a well-earned break from smashing particles together at velocities approaching the speed of light.
It’s now gearing up to get back to work and, ahead of next month’s restart, CERNhas revealed exactly what went on while the LHC was “hibernating.”
During its annual shutdown, known as the Extended Year End Technical Stop (EYETS), the LHC was drained of liquid helium before engineers looked over the cooling and ventilation, vacuum, electrical and other systems.
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Abigail Beall 