[Xrayops] Scheduled refill of the Storagering Canceled

APS Experiment Hall X-ray Operations Problem List xrayops at mailman.aps.anl.gov
Wed Dec 17 17:46:44 CST 2008

The 19:45 refill of the storage ring tonight and, most likely, the 07:45 
refill tomorrow will be canceled due to problem with the motorized fused 
disconnect which provides power to the Booster RF system. This piece of 
equipment is located outside and, due to the weather and lack of light, 
no work can be performed on this system until tomorrow morning. We 
should know between 10:00 and 12:00 tomorrow whether this equipment can 
be repaired by 16:00. If it cannot be, we will schedule a storage ring 
beam dump and switch to a back-up RF system. This switch will result in 
no stored beam for approximately three hours.

If stored beam is lost before the equipment can be repaired, personnel 
will be contacted to come in immediately and do the switch to the 
back-up RF system at that time. The downtime in this case would be 
expected to be in the 3-1/2 to 4 hour range.

We will send out an update at around 10:00 tomorrow, or earlier if we 
have any information regarding the repair.

Karen Schroeder
Storage Ring, Chief of Operations

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