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  A B C D E F H I L M N O P R S T U        Definitions
 
Machine Cycle The machine cycle refers to one complete operation cycle of a machine, i.e. injection, ramp up, possible collision flat top, ejection and ramp down. The minimum cycle time refers to the minimum time required for a complete machine cycle.
Machine statistics run time: annual time allocated to running with beam [days].
scheduled physics time: annual time allocated to physics (excluding initial beam commissioning, scrubbing, TS, recovery from TS, MDs, special physics) [days].
physics efficieny: time with both beams present and stable beams, versus scheduled physics time [%].
machine availability: time when machine is in a state allowing operations to take beam and run through nominal physics cycle, versus run time [%].
turnaround time: Time between the end of one and the start of the next physics run / data taking by the experiments (delimited by the loss of beam presence/beam dump back to declaration of STABLE_BEAMS) [hours].
recovery time: Time between the end of one and the readiness for injection of new particles of the next (delimited by the loss of beam presence/beam dump and resuming of the normal operational cycle) [hours].
Magnet quench Loss of the superconducting state in the coils of a superconducting magnet.
Main lattice magnets Main magnets of the LHC arcs, i.q. the arc dipole and quadrupole magnets.
Matching section Arrangement of quadrupole magnets located between the dispersion suppressor and the triplet magnets (or the IP for those insertions without triplet magnets). Each insertion has two matching sections: one upstream and one downstream from the IP.

 

 

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