LARP Project Update Eric Prebys Joint LARPHi Lumi

LARP Project Update Eric Prebys Joint LARP/Hi. Lumi Meeting NAPA, CA, April 8 -10, 2013

Context: Baseline LHC Upgrade Path • Time Line: § LS 1*: “Nominal” (2013 -2014) Complete repairs of the superconducting joint and pressure relief problems which cause “the incident” in 2008 and currently limit the energy to 4+4 Te. V. “Lost memory” issues may limit the beam energy to somewhere between 6. 5 and 7 Te. V per beam. At least 1 x 1034 cm-2 s-1 peak luminosity LS 2: “Ultimate” (2017) injector and collimation upgrades At least 2 x 1034 cm-2 s-1 peak luminosity LS 3: “HL-LHC” (~2022 -2023) Lower b* and compensate for crossing angle to maximize luminosity 5 x 1034 cm-2 s-1 leveled luminosity • • • § • • 2 Joint LARP/Hi. Lumi Meeting, Napa, CA *LS = “Long Shutdown”

Relevance of LARP to CERN Upgrade* Letter to Dennis Kovar, Head, DOE Office of High Energy Physics, 17 -August-2010 (…) 3 Joint LARP/Hi. Lumi Meeting, Napa, CA

New Direction for LARP has historically been an R&D organization • § § Not well structured for hard deliverables CERN upgrade plans in a state of flux Recent developments • § § CERN has formalized the planning for the luminosity upgrade In June 2012, CERN chose 150 mm as the aperture for the final focus quads At the DOE’s request, we are in the process of transforming LARP into a project to encompass all US contributions to the luminosity upgrade of the LHC. Budget Guidance • • § § § 4 Flat-Flat LARP funding @ ~$12. 4 M/year through FY 16 A total of $200 M (then year dollars) TPC, assuming CD-3 at approximately the beginning of FY 17 “Some amount” of General Accelerator R&D (GARD) funds invested in support of this program (still being negotiated). Joint LARP/Hi. Lumi Meeting, Napa, CA

DOE Directive to Labs Also sent to other Ass. Dir. for Acc. (…) • Questions: § § § 5 Which GAD funds? How much? Who controls it and how? Joint LARP/Hi. Lumi Meeting, Napa, CA

Recommendations from July, 2012 LARP Review • Magnets: 1. Abandon the effort on the 120 mm LHQ and begin work on the 150 mm quad development. The 120 mm work (HQ and LHQ) was sharply reduced and resources have been redirected to the 150 mm prototype 2. 3. Produce a resource loaded schedule that establishes the path to the final production of the required number of 150 mm quadrupoles to ensure that resources are properly utilized, by September 4, 2012. Develop an acquisition strategy which seamlessly transitions from the research program into a construction project, by November 1, 2012. These have been integrated with the Management recommendations into an overall milestone schedule. 6 Joint LARP/Hi. Lumi Meeting, Napa, CA

Recommendations (cont’d) • Management Provide a management plan to give the process for down selecting deliverables for the LHC High Luminosity Project. Sep. 4, 2012 2. Make the list of deliverables with fully burdened cost estimates and schedules within a total cost estimate of about $200 M (at year dollars) and assuming a flat-flat LARP funding for the next four years. November 1, 2012 3. Meet with CERN and DOE to finalize the list of U. S. deliverables and the schedule. December 21, 2012 The exact scale of the US production is still under discussion, and will have to be decided in the context of the overall US program. Thus, we could see a path for satisfying the Magnet Systems recommendations separately and in advance of the overall planning schedule, as implied by the schedules given above. We therefore adopted the following set of combined milestones. 1. 7 Joint LARP/Hi. Lumi Meeting, Napa, CA

New Milestones* 1. 2. 3. 8 September 4, 2012: Submit down-select plan ✔ November 1, 2012: Submit a prioritized list of candidate projects with consistent methodology for cost, schedule, and scalability (if applicable). This list would also include details for each project regarding what funds, if any, would be required over and above the LARP funding prior to FY 17. Note that at this point, the total cost would certainly still well exceed $200 M. ✔ December 21, 2012: Submit a preliminary proposal for a list of US deliverables to the LHC which will fit within the mandated cost. This proposal will include the schedule for the milestones of a Project Execution Plan (PEP), in accordance with DOE Order 413. 3 B. ✔ Joint LARP/Hi. Lumi Meeting, Napa, CA

Candidate Projects Considered • Traditional LARP Scope § 150 mm aperture Nb 3 Sn quadrupoles Likely just cold masses, divided between here and CERN Crab Cavities Prototypes. Production Units. Cryomodules. High Bandwidth Feedback System Pick-ups. Processing Systems. Response Kickers. Collimation Rotatable collimators. Hollow electron beams. • § • • • New Scope § 11 T Nb 3 Sn dipoles Used to make room for collimation in dispersion suppression region Has been a bilateral CERN/FNAL effort Large Aperture Nb. Ti D 2 separator magnets First dual aperture magnets near Irs Has been bilateral CERN/BNL effort • • § • • 9 Joint LARP/Hi. Lumi Meeting, Napa, CA

The Process • Committee formed consisting of § LARP Management • • • § CERN HL • • § 10 Represented by Stuart Henderson, FNAL Project support • • Bruce Strauss, DOE Labs • § Lucio Rossi, CERN Oliver Brüning, CERN DOE • § Eric Prebys, FNAL Tom Markiewicz, SLAC Gian. Luca Sabbi, LBNL Peter Wanderer, BNL Marc Kaducak, FNAL Met several times over several weeks, including at the fall meeting in Frascati Joint LARP/Hi. Lumi Meeting, Napa, CA

In Broad Strokes…. • A consensus quickly emerged among all concerned (CERN, DOE, LARP labs) regarding priority § Core Priorities: Committed to a major stake in Nb 3 Sn quads Less than “about half” not considered attractive by anyone involved This will eat up the lion’s share of resources Would like to commit to crabs up to the SPS test. As much production as possible High bandwidth feedback was seen as a high impact contribution for modest resources. Back up options: 11 T dipoles It was felt that the current R&D work should be continued, funded by GAD funds, up to a negotiated hand-off project. Hollow electron beams for halo removal Although there is no solid plan for collimation, it was felt R&D into this effort should be supported, in the event it’s chosen as a primary technology and circumstances allow its funding. Low priority There was not much interest in pursuing the D 2 separators. • • • § • 11 Joint LARP/Hi. Lumi Meeting, Napa, CA

Feedback from CERN Top Priority Backup 12 Joint LARP/Hi. Lumi Meeting, Napa, CA

LARP Magnet Development Tree Completed • Length scale-up High field • Accelerator features • 13 Joint LARP/Hi. Lumi Meeting, Napa, CA Achieved 220 T/m Being tested

HQ Tests • Initial tests at LBNL § • Reached 14. 6 k. A @ 4. 2 K Recent tests at CERN § § Good agreement with LBNL results Reached 16. 2 k. A @ 1. 9 K • • 14 85% of short sample limit > nominal current of 14. 9 k. A! Joint LARP/Hi. Lumi Meeting, Napa, CA

Proposed Magnet Contribution • • In June, 2012, the choice was made of 150 mm as the aperture for the focusing quads in the LHC upgrade. LARP activities have been modified in accordance with this decision and recommendations of the July 2012 review § § • Curtail existing 120 mm program Work with CERN to develop a 150 mm prototype (LQXF) The program will then full transition into a production project to produce the focusing quadrupoles for the LHC upgrade § US contribution Cold masses for the Q 1 and Q 3 quads, to be cryostated at CERN A total of 20 half length (4 m) cold masses, including 2 preseries units, 16 production units, and 2 spares • • 15 Joint LARP/Hi. Lumi Meeting, Napa, CA

Crab Cavity Development 16 Joint LARP/Hi. Lumi Meeting, Napa, CA

Proposed Crab Cavity Contribution • LARP has been a major proponent of crab cavities since the beginning § • Crab cavities leverage US expertise and US industry § • Currently two of the three candidate designs are from within LARP All prototypes, including the UK prototype, have been built in the US. Proposal § § The LARP R&D program will continue work on the SLAC/ODU and BNL cavity designs Efforts will increase at FNAL on cryostat design This will culminate with the delivery of a test cryostat with cavities of one of the designs for a beam test in the SPS (2015 or 2016) The project will undertake the production of 10 cryomodules (4 per IP + 2 spares) for installation in the LHC upgrade CERN will provide RF couplers and all required infrastructure • 17 Joint LARP/Hi. Lumi Meeting, Napa, CA

High Bandwidth Feedback System The high bandwidth feedback system is a proposed feedback system for the SPS, which leverages LARP experience with the LHC LLRF system • Proposal • § § LARP will continue R&D related to the system. The deliverable would be a functional prototype in the SPS, for which • • 18 The US contribution would be the complete “full-function” instability control system hardware, firmware and software necessary to operate at the SPS (and potentially LHC, PS). The CERN contribution will include the vacuum structures (pickup(s) and kicker(s)) and all tunnel related cable plant. Joint LARP/Hi. Lumi Meeting, Napa, CA

Budget Profile 19 Joint LARP/Hi. Lumi Meeting, Napa, CA

Compare to: $200 M TPC +4 years at ~$9 M/year ≈$236 M Still work to do 20 Joint LARP/Hi. Lumi Meeting, Napa, CA

Status and Plans Briefed DOE on Feb. 1, 2013 • Very supportive of proposed deliverables • Working with us to divert necessary General Accelerator Research and Development (GARD) funds, as well as additional funding to support our planned spending profile prior to FY 17. • Moving ahead with planning • § § § 21 Currently aligning plans with updated DOE budget guidance. Working with labs to identify GARD contributions. Planning a review in early May. Joint LARP/Hi. Lumi Meeting, Napa, CA

Non-Project LARP Activities • LARP continues to have significant R&D activities that are not directly related to the project deliverables § § Energy deposition studies (will probably move to magnet project) Beam-beam and general beam physics issues Hollow electron beams for halo removal Personnel programs • • • We are committed to preserving at least some non-project activities after the project starts § 22 Toohig postdoctoral fellowship Long Term Visitors (LTV) program Note: LTVs are more expensive now that we also have to pay their salaries! Joint LARP/Hi. Lumi Meeting, Napa, CA

Toohig Fellowship • • Named for Tim Toohig, one of the founders of Fermilab Open to recent Ph. D’s in accelerator science or HEP. Successful candidates divide their time between CERN and one of the four host labs. Past § § § • Present § § § 23 Helene Felice, LBNL, now staff Rama Calaga, BNL, now CERN staff Ricdardo de Maria, BNL, now CERN Fellow Themis Mastoridis, SLAC, now CERN Fellow Ryoichi Miyamoto, BNL, now ESS Staff Dariusz Bocian, FNAL, now Ass. Prof. at The Henryk Niewodniczański Institute of Nuclear Physics Simon White, BNL Valentina Previtali, FNAL John Cesaratto, SLAC Ian Pong, LBNL Silvia Verdu Andres, BNL Joint LARP/Hi. Lumi Meeting, Napa, CA

Toohig Interviews at this Meeting • We have three Toohig talks scheduled for this meeting during the Tuesday afternoon Accelerator session § § § • 24 4: 00 - Joseph Calvey, Cornell University 4: 30 - Ilkyoung Shin, University of Connecticut 5: 00 - Subashini De Silva, Old Dominion University Please use this opportunity to get to know the candidates Joint LARP/Hi. Lumi Meeting, Napa, CA

Long Term Visitors Program • LARP Pays transportations and living expenses for US scientists working at CERN for extended periods (at least 4 months) § Past: Jim Strait, FNAL – Machine protection/splice consolidation Steve Peggs , BNL – UA 9 Alan Fisher, SLAC – Synchrotron Light Monitor Rama Calaga, BNL – crab cavities and commissioning Eliana Gianfelice, FNAL – abort gap cleaning Uli Wienands, SLAC – UA 9, PS 2, PSB Chandra Bhat, FNAL – flat bunches for Large Pewinski Angle solution, SPS lifetime issues Present: Alexey Burov, FNAL – Instabilities in the injector chain, new injection ideas • • § • • Extremely successful at integrating people into CERN operations § • 25 Big thanks to CERN for their support of this program Interested parties coordinate with a CERN sponsor and apply to the program (contact me) Joint LARP/Hi. Lumi Meeting, Napa, CA

Impact of LARP Personnel Programs Letter to Michael Procario, Acting Head, DOE Office of High Energy Physics, 9 -MARCH-2011 (…) 26 Joint LARP/Hi. Lumi Meeting, Napa, CA