Long-Baseline Neutrino Facility LBNF News and brief overview of Beamline plans for the next few months Vaia Papadimitriou Beamline Technical Board Meeting April 1, 2016

LBNF News Waiting for CD3-A for the Far Site Still limited funding for the Beamline in FY16; Preliminary Design to start in FY18; Have planned for a ramp up in the second half of FY17. In the mean time the scientific collaboration would like to try and implement at day one (if possible) a re- optimized design for better physics reach (similar to where we were in 2012 before the reconfiguration which forced us to reduce costs). Why we can possibly achieve it this time? Additional scientific and engineering effort and more monetary resources Vaia Papadimitriou | News and Plans

LBNF Scope of re-optimization to improve physics reach Target (longer) Horns (three) with different shapes and higher currents than NuMI Integration/mounting of target into horn, baffle mounting, etc. Horn support modules (three) Horn power supply (ies) Remote handling (casks, morgue capacity analysis, workcell,..) Absorber (same footprint or changed footprint, possibly simplified) Developing the alternative option of gas in target chase as discussed in CD-1R (technical alternative) Associated Modeling Associated Radiation Protection Associated Conventional Facilities Additional Management Vaia Papadimitriou | News and Plans

LBNF News Effort plan to achieve new conceptual design by FY18: in document 1098: ~ $ 2M, ~ 10.4 FTE out of which 6 FTE in engineer/designer Message from Elaine McCluskey on March 22, 2016 related to Beamline re-optimization: Vaia Papadimitriou | News and Plans

LBNF Today’s Goal Our default design points to an air-filled/air-cooled target chase, a helium filled decay pipe which is currently air-cooled but considering making it nitrogen cooled, and a beam window separating the chase from the decay pipe. Among the high level priorities for FY16: Complete corrosion effort Complete air releases work for a longer/wider target chase as decided Today’s goal is to discuss the latest corrosion results and the plan forward with these studies Vaia Papadimitriou | News and Plans

LBNF Target Hall/Decay Pipe Layout 6 DECAY PIPE SNOUT DECAY PIPE UPSTREAM WINDOW WORK CELL 50 TON CRANE Decay Pipe: 194 m long, 4 m in diameter, double – wall carbon steel, helium filled, air-cooled. Target Chase: 2.2 m/2.0 m wide, 34.3 m long air- filled and air & water-cooled (cooling panels). Sufficiently big to fit in alternative target/horns. Cooling panels Beam 5.6 m Vaia Papadimitriou | News & Plans ~ 40% of beam power in target chase ~ 30% of beam power in decay pipe Main alternatives for gas atmosphere: N 2 or He

LBNF Backup 7

LBNF Additional resource requirements towards conceptual design Vaia Papadimitriou | News and Plans These resources will be required in the next 16 months, before the end of July 2017

LBNF Beamline Facility contained within Fermilab property ~ 21,000 m 2 4 Beamline for a new Long-Baseline Neutrino Facility MI-10 Extraction, Shallow Beam Constructed in Open Cut Constructed as Tunneled excavation Vaia Papadimitriou | News and Plans All systems designed for 1.2 MW initial proton beam power (PIP-II). Facility is upgradeable to 2.4 MW proton beam power (PIP-III). Primary beam designed to transport high intensity protons ( GeV) to the LBNF target

LBNF 10 Hadron Absorber Absorber Hall and Service Building The Absorber is designed for 2.4 MW ~ 30% of beam power in Absorber 515 kW in central core 225 kw in steel shielding Core blocks replaceable (each 1 ft thick) Beam Muon Shielding (steel) Beam Muon Alcove Sculpted Al (9) Hadron Monitor Absorber Cooling Core: water-cooled Shielding: forced air-cooled Flexible, modular design

LBNF LBNF at the Near Site - Schedule Summary Overview 11 FY27 FY26FY25FY24FY23FY22FY21FY20FY19FY18FY17 FY16 FY15 Primary Beam Enclosure Settlement Period Target Hall Absorber Hall Decay Pipe Beamline Checkout Period Beamline Design Embankment Construction CF Preliminary & Final Design Primary Beam Enclosure Beneficial Occupancy Dec-19 CD-2/3c Project Baseline/ Construction Approval Nov-15 CD-1 Refresh Approval Apr-27 CD-4b (early completion) Target Hall Beneficial Occupancy Conventional Facilities Construction Complete Near Detector Hall Beneficial Occupancy Jan-19 CD-3b Approval Absorber Hall Beneficial Occupancy Beamline Activity (DOE) Conventional Facilities Activity (DOE) Extraction Enclosure Near Detector Hall Beamline Activity (DOE and Non-DOE) Beamline Complete The longest path is: embankment design/construction/settlement; TH construction and inst. of components in TH; beamline checkout Vaia Papadimitriou | News & Plans

LBNF FY27 FY26FY25FY24FY23FY22FY21FY20FY19FY18FY17 FY16 12 Beamline Summary Schedule Extraction Enclosure (Long Shut Down) FY15 Primary Beam Enclosure Beamline Component Procurement/Assembly Beamline Design - Ready for CD-2 Beamline R&D Complete Dec-19 CD-2/3c Project Baseline/ Construction Approval Nov-15 CD-1 Refresh Approval Apr-27 CD-4b (early completion) Beamline Design Revival Target Hall Beneficial Occupancy Beamline Technical Component Installation Complete Absorber Hall Beneficial Occupancy Extraction Enclosure Beneficial Occupancy Primary Beam Enclosure Beneficial Occupancy Magnets Horns Target Shield Pile Disassemble MI Components Conventional Construction Install New / Existing Components Upstream of Shield Wall - completed during long shut down Downstream of Shield Wall Beamline Final Design Beamline KPP Met Includes some Non-DOE scope Target Hall Beamline Checkout Period Install Target Shield Pile Mechanical and Electrical Rough-in Install Horn 1 & 2 and initial Power-up Absorber Component Installation Remote Handling Commissioning Mechanical and Electrical Rough-in Remote Handling Commissioning Start MI Long Shut down MI Long Shut down complete The longest path is: embankment design/construction/settlement; TH construction and inst. of components in TH; beamline checkout See next slide Absorber Hall Over 3,000 schedule activities Vaia Papadimitriou | Beamline Resource Requirements