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Engineers checking the electronics on a LHC dipole magnet.

Engineers checking the electronics on a LHC dipole magnet.

Welding one of the final LHC interconnections

Welding one of the final LHC interconnections.

A worker inside the LHC tunnel.

Cleaning of the LHC tunnel wall.

View of the tunnel LHC machine in August 2007.

Descent of the last LHC dipole magnet.

Descent of the last LHC dipole magnet .
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