The ESS ADU project Mats Lindroos 2011 03

The ESS ADU project Mats Lindroos 2011 -03 -23 Head of the ESS Accelerator Division

ESS program Goal >Neutrons at ESS in Lund before the end of the decade!

ESS accelerator design High level objectives ESS accelerator high-level technical objectives: 5 MW long pulse source -2 ms pulses -20 Hz -Protons (H+) -Low losses -High reliability, >95% -Continuous cryostats for minimum energy consumption -Flexible design for a future power upgrade

LINAC layout RFQ Length (m) Input Energy (Me. V) 4 75 × 10 -3 Frequency (MHz) 352. 2 Geometric β # of Sections -1 Temp (K) ≈ 300 DTL 19 3 352. 2 -- 3 ≈ 300 Spoke 52 50 352. 2 0. 45 14 (3 c) ≈2 Low Beta 57. 5 200 704. 4 0. 63 10 (4 c) ≈2 High Beta 215 500 704. 4 0. 75 19 (8 c) ≈2 HEBT 100 2500 -- -- M. Eshraqi and A. Ponton, ESS 7 7

Linac R&D in progress LINAC 4 IPHI RFQ at CEASaclay SC single spoke cavity, IPNO (CNRS) SC 5 cell cavity for 704 MHz, CEA and CNRS

ESS project strategy P 2 B assures a stringent project framework for prototyping and engineering design reports, a continuous transition from design to construction and keeps the collaborations intact through the construction decision process P 2 B projects Construction projects Design Updates 2011 2012 2013 2014 2015 International convention signed TDRs with cost and Schedule P 2 B DU DU P 2 B Const. P 2 B 2016 2017 2018 2019 First neutrons Cryomodule production starts First protons

ADU project • Design Report for the end of 2012 with clear costing and schedule & initial prototyping • Readiness to construct by the end of 2012 -- all requirement and interface documents and lay-out drawings ready • Energy budget and sustainability should be taken into account in each work package • Milestone end of 2011: New baseline and first version of design report • Responsibilities within Management team • • S. Peggs – Communication R. Duperrier – System engineering C. Oyon – Internal review M. Lindroos – Project leader

Accelerator Design Update Steve Peggs Cristina Oyon Work Package (work areas) Josu Eguia Romuald Duperrier (30 years ago) 1. Management Coordination – ESS (Mats Lindroos) 2. Accelerator Science – ESS (Steve Peggs) 3. Infrastructure Services – Tekniker, Bilbao (Josu Eguia) 4. SCRF Spoke cavities – IPN, Orsay (Sebastien Bousson) Guillaume Devanz 5. SCRF Elliptical cavities – CEA, Saclay (Guillaume Devanz) 6. Front End and NC linac – INFN, Catania (Santo Gammino) Mats Lindroos 7. Beam transport, NC magnets and Power Supplies – Århus University (Søren Pape-Møller) 8. RF Systems – Uppsala university (Roger Ruber) Sebastien Bousson Roger Ruber Søren Pape Møller Santo Gammino

Prototypes • Planned and proposed prototypes in ADU project (before 2013): – – SC Cavities (High beta elliptical and spoke types) at CEA and IPNO Tests with existing ion source and RFQ (under assembly) in Catania and at CEA Test of ITER type control system HW unit with SW interface (“Control box”) First beam instrumentation in Lund • Planned and proposed prototypes in P 2 B project – RF source, control and distribution system in Uppsala – Discussions with RRCAT in India on the construction of a low beta elliptical cavity prototype with the aim of building these cavities in India as an Indian in-kind contribution to ESS – Discussions with JLAB for a additional spoke cavity prototype built in the USA – Half length cryomodule for 4 elliptical cavities with CERN – Full length cryomodules for all SC cavity types – Beam instrumentation – Final version of Ion source in Catania – DTL at INFN – All ESS beam instrumentation in Lund SC spoke cavity SC elliptical cavity

First simulation results

Test stand strategy Test cryostat • 704 MHz test stand for SC elliptical cavities and a cryomodule – ESS is contributing with a modulator to the CERN test-stand – Study and costing in progress for CERN, CEA and Uppsala test stands – Focus in Uppsala on RF source, control and distribution (energy aspects) – Study of the possibility to use the XFEL infrastructure and test stands at DESY and CEA for ESS construction • 352 MHz test stand for SC spoke cavities and cryomodules – One test stand at CEA for NC structures – One test stand under construction at IPNO in Paris • Test area for Ion Source development exists in Catania

Upgrades • The mandate is to build a 5 MW accelerator! • The presently favored upgrade scenario is a power upgrade to higher power with maintained time structure • We will study how this can be prepared within the present 5 MW baseline – The additional cost should be understood and made apparent in the costing of the 5 MW baseline – First technical studies and financial estimates for the upgrade itself should be done as part of the ADU project

ESS Energy Solution - Development and Demonstration ”Powerbox” - electricity from waste heat Research, Development and Demonstration of emerging energy technologies strengthen sustainability message and energy culture On Site Solar Systems Energy Exhibition at Visitor Centre Seasonal storage Cooling and Heat District Heating Energy savings in improved effiency equipment: 20 % CO 2 global impact: 0 ton/year Investments connection DH: 1 M€ Operating costs (revenue) : - 1, 5 M€

P 2 B Acc Prototypes - 1 Category Description Beam Instr BPM: Beam Position Monitor Where? BLM: Beam Loss Monitor TPM: Transverse Profile monitor (2 Types) BSM: Bunch Shape Monitor RF LLRF: Low Level RF Lund EHC: 8 Elliptical cavities – high beta CEA-Saclay ELC: 4 Elliptical cavities – low beta SPC: 4 Spoke cavities 3 at CNRS Couplers 704 MHz 8 at CEASaclay Couplers 353 MHz 3 at CNRS Estimate cost

P 2 B Acc Prototypes - 2 Category Description Where? RF RFQ CEA DTL structure and tank MEBT with chopper and collimator Beam Ion Source INFN Quads and magnets CRYO CMH 1: Cryo design, continuous CMH 2: Cryo design, segmented CMH 3: Cryo design, hybrid CMH 3: Cryomodule, high-beta, final CML: Cryomodule, low beta, final CMS: Cryomodule, Spoke, final CMT: Cryomdoule, general test Cryoline and jumper module CERN Estimated cost

P 2 B Acc prototypes - 3 VAC Pump station INFRA Mock-up of tunnel or Virtual reality model CONTROL Controlbox with HW and SW, V 1 Where ESS Controlbox with HW and SW, V 2 Timing modules COMPUTING Controls development and scientific computing environment AD VACUUM Pump station linac ESS Cost

Test stand needs AD Category Description Where? Test-stand 704 MHz for CMT CERN Test-stand 704 MHz for proto CMs Test-stand 352 MHz for proto CMs IPNO, CEASACLAY Test-stand for production CMs Front End test stand CEA Test stand for ion source INFN Test-stand RF Source and Distribution Uppsala Cost

Conclusions >We will build the ESS in Lund and with all the others in the ESS program deliver first protons before the end of the decade >The Accelerator Design will permit a long life with many upgrades >The Accelerator design, prototyping and construction will be done in a collaboration with ESS AB in Lund as coordinator and future owner >The energy aspects of the accelerator complex are very important >Many Thanks to all members of the emerging ESS accelerator collaboration

Tack!