Jefferson Lab > Accelerator
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Accelerator Operations Orientation

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Beam Delivery Interruptions

Once beam has been established for Physics running, the operators will do their best to continuously deliver beam. During running, the halls should notify the MCC Control Room of any configuration changes that may alter the beam orbit, such as changing the state of magnets, radiators, rasters, target cells etc. Interruption of beam delivery to a hall can be for a variety of reasons, either planned or unplanned.

Unplanned Beam Interruptions

When the beam trips off (i.e., it is not turned off deliberately), an alarm sounds in the MCC Control Room, alerting the operators to the trip (these are referred to as Fast Shutdown [FSD] trips).

Planned Beam Interruptions