All Experimenters’ Meeting October 20, 2014 Photo by Greg Vogel

Accelerator Operation Summary Calendar Week # 35 NuMI Weekly Integrated Intensity 7.95 E18 protons Beam Hours To NuMI hours BNB Weekly Integrated Intensity 5.76 E18 protons Beam Hours To BNB hours NMuon Weekly Integrated Intensity 3.49 E16 protons Beam Hours To NMuon hours MTest Weekly Integrated Intensity 5.71 E14 protons Beam Hours To MTest hours From : August 25, 2014 (0000 hours) To: September 01, 2014 (0000 hours)

Accelerator Operation Summary Calendar Week # 36 NuMI Weekly Integrated Intensity 4.06 E18 protons Beam Hours To NuMI 92.2 hours BNB Weekly Integrated Intensity 3.47 E18 protons Beam Hours To BNB 95.8 hours NMuon Weekly Integrated Intensity 2.13 E16 protons Beam Hours To NMuon 87.2 hours MTest Weekly Integrated Intensity 4.32 E14 protons Beam Hours To MTest 69.6 hours From : September 01, 2014 (0000 hours) To: September 08, 2014 (0000 hours)

Access Thursday – 8/21/14 Beam off at 0600 Keys available at 0700 Install Refurbished Booster RF Cavity Keys back at 1500 Other jobs that fit during cavity change Beam by beginning of evening shift

Fall Shutdown Intensity Reduction Plan Begins Saturday, August Main Injector will run $23 events instead of $2A events to NuMI (~80 KW reduction) Linac and Booster will meet program needs BNB should be unaffected SeaQuest will go down from 4 turns to 3 turns. Beam off Friday, September

2014 Shutdown Six full weeks into the shutdown – Linac and Booster Operational – Main Injector/Recycler startup today

2014 Shutdown NuMI Work – Beryllium vacuum window leak – Replace window – Horn Stripline maintenance – Work complete by Monday, October 27 th Switchyard Work – F1-F3 Vacuum recovery Once 46B work is done Impact MI for ~3 hours – Feeder 43 maintenance Scheduled for Saturday, October 25 th – G1 Stub Magnet Installation Magnet installed Leak check and final work – Feeder 46B work Prevents daytime operation of switchyard Expected to be complete by end of week Various Safety System Tests Meson Center Work – MC6D-3

Accelerator Startup Plan –Start up Linac, Booster, Main Injector and Recycler Linac and Booster running beam Main Injector/Recycler startup on Monday afternoon –Start up NuMI after the vacuum repairs Week of the October 27 th –Establish beam and perform scans –Run at nominal intensity for several days –Start up Switchyard Possibly the week of October 27 th

Wilson Hall Outages Low Impact Friday, October 10 th – Power to Wilson Hall (Entire site except Main Injector, Muon Campus, and Village) – From – MSS off KRSS backfeed

Wilson Hall Power Outages Saturday, October 18 th – Sunday, October 19 th – Power outage to Wilson Hall – 0700 – 1600 Sunday – Wilson Hall closed except authorized personnel – Remote Operations Center West (ROC West) available Saturday, November 8 st – Sunday, November 9 th – Rescheduled from Nov. 1 st & 2 nd – Power outage to Wilson Hall – 0700 – 1600 Sunday – Wilson Hall closed except authorized personnel – Remote Operations Center West (ROC West) unavailable Need to perform work impacting transfer switch on Saturday Further scheduling and more details required Friday, November 28 th – Saturday, November 29 th – Rescheduled from Oct. 20 th & 21 st – Power outage to Wilson Hall – 0700 – 1600 Sunday – Wilson Hall closed except authorized personnel – Remote Operations Center West (ROC West) available COMPLETED

ICW & PM work Inspection & Cleaning of Casey’s Pond Intake Sump – Tuesday, October 14 th Requires ICW flow between 4500 and 5000 GPM Currently between 5500 and 6000 GPM Will take a reading on Monday, October 13 th ICW Valve repairs – Various areas affected – MINOS/LArTF/BNB/MTA(partial) ICW Flushing – Various locations over this week. Electrical PM’s – Feeder 43: Oct. 25 th Transfer Gallery, Switchyard COMPLETED

Upcoming Issues In July 2015 we will need to power the entire site (except the village) off of Kautz Road SubStation (KRSS) for a year while operating –A new Master SubStation (MSS) will be built beside the old one –We have the capacity, but don’t know if we can run a Physics Program Possible noise on the lines Expect some problems with the Proton Source Planned on starting up from the shutdown with the site on KRSS to test Gives us some time to address problems –We don’t know what impact it may have on the rest of the Lab Will lights flicker? Will processes be sensitive to the Main Injector ramp?

When do we test? –Met with FESS and AD Departments to discuss possible test dates and impacts to schedules –Set up a meeting for tomorrow with Division/Section power representatives to confirm test date –Lock in a test starting date (proposed date is November 4 th ) –The duration of the test will depend on the results If we can operate, stay on KRSS for some time to allow the Lab to cycle through its normal power usage. Look for an agreeable time to switch back. If we cannot operate, switch back to using both substations after a few days, apply fixes, regroup, retest –Working with FESS HV to put together a likely schedule for the rolling power outages across the lab while the power feeds are being configured

Switch to KRSS Stabilize & Run Beam Schedule

Schedules and Links: Schedule can be accessed from the Operations Home Page – - Schedules -> Operations ScheduleOperations Schedule Direct link to schedule – -