Maintenance and Maintenance and Accelerator SupportAccelerator Support

RHIC StartUp10RHIC StartUp10

Thanksgiving restart:Thanksgiving restart:

Monday:Monday: Booster off for two emergency electrical Booster off for two emergency electrical

jobs:jobs: 69 kV feed transformer repair –Booster Main 69 kV feed transformer repair –Booster Main

Magnet alt feed necessaryMagnet alt feed necessary Substation 2L – Arc flash and EBIS issuesSubstation 2L – Arc flash and EBIS issues

Failures:Failures: BoosterA3 RF tube failureBoosterA3 RF tube failure

Had been secured for outageHad been secured for outage

Booster D3 valve failureBooster D3 valve failure Had been closed prior to outageHad been closed prior to outage

Recovery continuedRecovery continued

RF presently fixedRF presently fixed Valve issue unresolved, efforts Valve issue unresolved, efforts

to open ongoingto open ongoing AGS and AtR are ready for AGS and AtR are ready for

beam when Booster is availiblebeam when Booster is availible

RHICRHIC

RHIC areas opened in generalRHIC areas opened in general RF area closed testing this eveningRF area closed testing this evening ACS work continues, some alarms ACS work continues, some alarms

will sound and delays in gate access will sound and delays in gate access at timesat times

Roll ups complete for most partRoll ups complete for most part RHIC Beam scheduled for beam Dec RHIC Beam scheduled for beam Dec

44th, th, pending Booster resolutionpending Booster resolution