Machine Status  Proton Source Commissioning and Studies 8/13-8/14: Linac & Booster Maintenance Period  Main Injector MI30 vacuum ○ Work continues to resolve the high gas load at MI308 MI back-fed from Master Sub-Station ○ KRS T85 work complete, but still using Feeder 45 for MI conventional Need to schedule a 20 minute MI conventional power outage to remove the back-feed from Master Sub-Station after tunnel work.  SY120 Neutrino Muon ○ G2 NM1 berm pipe progressing Mtest ○ MC6 magnet replacement

MI 307 to 309

Section 3  Stable Holding vacuum No further work

Section 2  Contamination Bellows Pirani Gauge Samples sent for testing  Section 2 removed Cleaning elements and building a new section in parallel Leak check and reinstall

Section 1  RGA Scan completed Friday Did not reveal anything conclusive Additional baseline scans this morning  Downstream end put under vacuum (not including collimator) Heated bellows for 30 seconds Ion pump tripped off.  Section 1 contaminated Collimator beam pipe will be cleaned in place Remainder of section replaced.

Neutrino Muon M. Geelhoed 8/16/2013 G2 NM1 Berm Pipe Progress Status – Welding third set of pipes in enclosure

August 2013 DRAFT

Shutdown 2012 Schedules and Links: Schedule can be accessed from the Operations Home Page - Schedules -> Operations ScheduleOperations Schedule Direct link to schedule -