Challenges to get LBNF ready for Far Detector installation ASAP Elaine McCluskey ELBNF Proto-Collaboration Meeting 22 Jan 2015

Outline Schedule for Far Site Facility at SURF & opportunity Conventional Facility design status Cryostat & cryo systems design and team approach DOE project process “CD-1 Refresh” review in July CD-2a/CD-3a review in fall “Steps” strategy alignment with funding Details: working underground at SURF Summary 1/22/2015McCluskey |Challenges to get LBNF ready for FD Install2

Schedule for Far Site Facility 1/22/2015McCluskey |Challenges to get LBNF ready for FD Install3 DOE supportive of aggressive Far Site schedule! Remarkable opportunity to complete large elements with high risk early and to get detector constructed ASAP.

Conventional Facilities Design Status Preliminary design started last week with A/E consultant. 30% level to be complete in March, 90% in September. Other studies already underway include ground (rock) movements, maximum cavern span, upright cylinder option, Geotechnical Interpretive Report (GIR). Design based on 2-cavern reference design – need collaboration confirmation of this staged approach very soon. Final design will begin in late 2015 to stay on schedule, need final dimensions then. 1/22/2015McCluskey |Challenges to get LBNF ready for FD Install4

Planned Location of LBNF Cavern(s) McCluskey |Challenges to get LBNF ready for FD Install5 Current reference* design: Rectangular caverns for rock-supported cryostats 2 caverns: 10 kt + 30 kt fiducial mass sizes 10 kt cavern fully outfitted and detector-ready 30 kt cavern excavated only *Actual design will depend on strategy and requirements set in discussion with Science Collaboration 1/22/2015

Cryostat Design & Configuration Reference design of rock-supported cryostat is at early preliminary design level –Not advanced by LBNE further at this point due to need to engage cryostat vendor for design, and fiscal responsibility for the vendor not yet settled –Risk review of rock-supported design approach will be reviewed in meeting at BNL 2-4 February with former LBNO & LBNE engineers, as well as CERN engineers. –Also under consideration is steel as an alternate structural support material. Goal is to make a “generic” cryostat design suitable for either one or two-phase detector. Need collaboration confirmation of staged detector strategy and input into proportions and detector module sizes. 1/22/2015McCluskey |Challenges to get LBNF ready for FD Install6

Partners for LBNF Cryo Work An LBNE team has been developing cryostat and cryogenic systems designs for an installation at SURF that provide a basis for a reference design. CERN and Fermilab are providing “neutrino platforms” for the Fermilab SBN program and R&D for ELBNF. A joint CERN- Fermilab engineering team has been formed and will be grown to develop cryostats and cryo systems, including LBNF. 1/22/2015McCluskey |Challenges to get LBNF ready for FD Install7 CERN’s partnership is critical to executing the design and provision of this technical infrastructure. 35t by IHI MicroBooNe

2015 DOE Reviews necessary for moving forward DOE project management process requires agency approvals at stages defined in a DOE directive order 413.3b.DOE directive order 413.3b 1/22/2015McCluskey |Challenges to get LBNF ready for FD Install8 LBNE Project achieved CD-1 in Dec 2012 – DOE has asked for a ‘refresh’ of this review to establish the project(s) scope, cost, schedule. Different parts of LBNF and ELBNF will go through approval reviews at different times for at least the DOE portion of the projects.

“CD-1 Refresh” Review for whole LBNF + ELBNF Enterprise CD-1 refresh review is to document the overall (big-picture) scope, cost and schedule range, and management of the 2 projects and get funding agency concurrence before moving forward. This is required to support the U.S. budgeting process. The CD-1 refresh will require (at least) these documents and maybe separate documents for each project: New / updated CDR and other technical documents incorporating designs and alternatives from all (E)LBNF partners. New / updated cost and schedule estimates. Iterating on the cost/schedule to match a to-be-provided DOE funding profile and expectations of funding from other agencies when that information is available. New / updated management plans and related documents (see what LBNE CD-1 documents were here).here Updated regulatory documents for the US part of the projects. McCluskey |Challenges to get LBNF ready for FD Install91/22/2015

“CD-1 Refresh” Review – more requirements To meet the requirements of a “CD-1 refresh” we need: Understanding of the governance of the Fermilab-hosted international LBNF and ELBNF projects Understanding what a “CD-1” review means for projects that are becoming fully international Definition of the scope and responsibilities of the ELBNF and LBNF projects, and the relationship and interfaces between them Formation of the ELBNF collaboration and project management team (Re-)definition of the LBNF project team, incorporating international partners Strategy for phasing the Far Detector and other ‘steps’ of the project to match available funding. All of the review requirements need engagement of the new collaboration, particularly the leadership, immediately. McCluskey |Challenges to get LBNF ready for FD Install101/22/2015

Rough Sequence of Events to be Ready for CD-1 Refresh Initial list of key events and decisions to allow LBNF and ELBNF to be ready for the CD-1 Refresh: CD-1 Review Early July PAC/LBNC MeetingMid-June Director’s Review and Independent Design ReviewEnd of May Material posted for Director’s ReviewMid May Complete draft CDR for internal (informal) reviewLate April Complete RLS for internal (informal) reviewLate April Decisions about scope of project for CDR & RLSLate March Preliminary cost roll-up for comparison with DOE funding guidanceMid March More careful analysis is required to make a real list of review preparation milestones. This list is to illustrate the work ahead. Present Fermilab project management is proceeding with CD-1 review planning given short timeframe with transition expected – clearly need EFIG and project management leadership to be identified and working to take ownership and responsibility for appropriate tasks in timely manner. McCluskey |Challenges to get LBNF ready for FD Install111/22/2015

CD-2a/3a Review (two reviews done simultaneously) CD-2a is the baselining of the scope, cost, and schedule for the DOE portion of the Far Site Facilities (conventional + maybe cryo). CD-3a gives DOE approval to start construction. These reviews provide input to the DOE budgeting process. The CD-2a/3a review for the far site facilities will require (at least): Complete preliminary design for the LBNF conventional facilities at SURF with their tie and alignment to the science & technical requirements from the eventual user Preliminary Design Report and independent Preliminary Design Review Cost and schedule estimates correlated to this design. Decision as to whether this review also covers the cryostat and cryogenic systems –If so, then must understand of how to review a subproject in which the DOE is a minority player. –Need to demonstrate non-DOE funding agency commitment in some way McCluskey |Challenges to get LBNF ready for FD Install121/22/2015

CD-2a/3a Review – more requirements More things needed for CD2a/3a review: Final DOE National Environmental Policy Act determination – U.S. regulatory process already underway that covers the entire enterprise. Independent Cost Estimate by DOE/Acquisition & Project Management office Understanding of SURF lease agreement, coordination with SURF, and large construction contract acquisition plan for far site facilities Demonstration of earned value management per DOE process for this part of the project. A clear plan for completing the DOE portion of the remainder of both projects Plan for final design Construction Health & Safety Plan Construction Management Plan McCluskey |Challenges to get LBNF ready for FD Install131/22/2015

“Steps” and iterating on the DOE-provided funding profile When the projected funding available from DOE and other partners is known, matching the timing of the work to science priorities and funding will require serious discussion. Early understanding of the science strategy is critical to this process. 1/22/2015McCluskey |Challenges to get LBNF ready for FD Install14

Working underground at SURF DOE will lease the space from SDSTA for LBNF construction & ELBNF installation/operation. SDSTA*/SURF will continue to control the shaft and common areas as owner, to coordinate and service multiple experiments safely. Underground occupancy –Dependent on ability to house and evacuate personnel underground in emergency –Presently limited to 72 personnel at 4850L which is limited by refuge chamber space underground and shaft cage size & hoist speed –SURF working to increase refuge chamber size and work is ongoing on shafts –Suggest discussions with existing collaborations (LUX, MAJORANA) and SURF Science Director Jaret Heise to understand this better from a science perspective. Shaft access –Anticipating main construction and installation access via Ross shaft –Yates shaft is also available for hoisting larger loads *SDSTA = South Dakota Science & Technology Authority 1/22/2015McCluskey |Challenges to get LBNF ready for FD Install15

Ross Shaft cross-section after Ross shaft rehab completion 1/22/2015McCluskey |Challenges to get LBNF ready for FD Install16

Summary DOE funding would provide an opportunity to construct facilities at SURF to enable detector installation as early as possible. To take advantage of this opportunity, DOE reviews are required in Getting collaboration leadership established to take ownership of work needed for the reviews in a timely manner is critical. Important strategic and configuration input will be needed from the collaboration soon. Present Fermilab project management is moving ahead with review planning for all aspects of the project, anticipating transitioning when collaboration is prepared to ready to do so. 1/22/2015McCluskey |Challenges to get LBNF ready for FD Install17