1477 ESSnuSB EU Design Study application 2017 TIARA meeting at CERN, 18 October 2016 Tord Ekelof, Uppsala University TIARA meeting at CERN, 18 October 2016 2016-10-17 1 Tord Ekelöf Uppsala University 1 The ESSnuSB Consortium 40 participating scientists from 11 countries Sweden, France, Spain, England, Switzerland, Italy, Poland, Bulgaria, Croatia, Greece and Turkey The ESSnuSB LoI published in Nuclear Physics B885(2014)127-149 Also available as arXiv:1309.7022 TIARA meeting at CERN, 18 October 2016 2016-10-17 2 Tord Ekelöf Uppsala University EuroNuNet COST Action accepeted in March 2016 Combining forces for a novel European facility for neutrino-antineutrino symmetry-violation discovery http://euronunet.in2p3.fr/site/EuroNuNet/View/Accueil.php “The two major goals of EuroNuNet are to aggregate the community of neutrino physics in Europe to study this concept in a spirit of inclusiveness and to impact the priority list of High Energy Physics policy makers and of funding agencies to this new approach to the experimental discovery of leptonic CP violation.” EuroNuNet Management Committee meeting and a one-day workshop held in Sofia, Bulgaria on 14-15 October 2016, preparing, among other matters, the EU Design Study application – see Indico page https://indico.cern.ch/event/563250/. TIARA meeting at CERN, 18 October 2016 2016-10-17 3 Tord Ekelöf Uppsala University EuroNuNet structure • 11 Member countries (BG, HR, FR, GR, IT, PL, ES, SE, CH, TR, UK) • 3 Obsevers: CERN, ESS (applied), IHEP Beijing (applied) • Chair: Marcos Dracos (Strasbourg) • Vice-Chair: Joakim Cederkall (Lund) WG WG WG co- WG Title # Leader Leader R. Neutrino detector and E. 1 Tsenov synergies Fernandez (BG) P. Cupial Elian 2 Neutrino production (PL) Bouquerel S. 3 Accelerators Bousson E. Wildner (FR) Strategy of implementation and T. Ekelof J-P 4 Technological (SE) Delahaye applications S. Training, Education and 5 Pascoli F. Terranova Outreach (U.K) Grant allocated forTIARA the meeting ESSnuSB at CERN, 18COST October 2016 action 500’000 EURO 2016-10-17 4 Tord Ekelöf Uppsala University 4 ESS’ letter of application to join EuroNuNet “COST Action CA15139 (EuorNuNet) is of strategic relevance for ESS as it fosters continued collaboration between the consortium partners of the ESSnuSB consortium, which pursues as its main aim to demonstrate that the ESS linac can be used to generate an intense neutrino beam by doubling its average beam power.” “We sincerely hope you will consider the interest of ESS to participate in EuroNuNet positively, and very much look forward to starting our collaboration.” TIARA meeting at CERN, 18 October 2016 2016-10-17 5 Tord Ekelöf Uppsala University The current efforts in the Design Study are focused on: 1. The ESS linac power upgrade and acceleration of H- pulses 2. The accumulator ring design and beam dynamics 3. The neutrino target and horn 4. Near Detector 5. The Far Detector, in particular engineering prospection and studies for the excavation of large the required cavern(s) in the Garpenberg- mine granite-zones and the involvement of local industry TIARA meeting at CERN, 18 October 2016 2016-10-17 6 Tord Ekelöf Uppsala University ESS construction site February 2016 and ESSnuSB ν n p H- TIARARECFA meeting Meeting at CERN, Lund 2018 MayOctober 2016 2016 2016-0510-2017 7 Tord Ekelöf Uppsala University Current overview of the ESS accelerator site TIARA meeting at CERN, 18 October 2016 2016-10-17 8 Tord Ekelöf Uppsala University The ESS LINAC tunnel completed TIARA meeting at CERN, 18 October 2016 2016-10-17 9 Tord Ekelöf Uppsala University SOURCE LEBT RFQ MEBT DTL SPOKE Medium and High β TIARA meeting at CERN, 18 October 2016 2016-10-17 10 Tord Ekelöf Uppsala University Preparing the ESS linac for operation at 10 MW with a 8% duty cycle and 28 Hz pulsing For the medium-beta elliptical-cavity part ESS is planning to use tetrodes. Thales has developed a new screen grid with graded wire thickness such that the heating is evenly distributed over the hight of the screen grid, thereby making operation at 10 % duty cycle possible. For the warm low-energy part of the ESS linac and the medium energy Elliptical-cavities part, ESS is planning to use modulators of the modular klystron modulator type which can be run at 28 Hz at double power by adding a capacitor charger-unit at the input. For the high energy elliptical Cavities IOTs will be used which by design can operate CW. TIARA meeting at CERN, 18 October 2016 2016-10-17 11 Tord Ekelöf Uppsala University TIARA meeting at CERN, 18 October 2016 2016-10-17 12 Tord Ekelöf Uppsala University FREIA The picture shows the cryostat and test bunker at the FREIA Lab in Uppsala where a first prototype of the ESS 352 MHz spoke accelerating cavity is currently under test at 14 Hz and later on will be tested at 28 Hz and full power. Modulators for the high beta part of the linac will also be tested at 28 Hz. TIARA meeting at CERN, 18 October 2016 2016-10-17 13 Tord Ekelöf Uppsala University Summary of Mamad Eshraqi’s talk on the ESS linac upgrade for ESSnuSB at the EuroNuNet Worshop in Sofia last Saturday TIARA meeting at CERN, 18 October 2016 2016-10-17 14 Tord Ekelöf Uppsala University Required modifications of the ESS accelerator architecture for ESSnuSB F. Gerigk and E. Montesinos CERN-ACC-NOTE-2016-0050 8 July 2016 CERN, Geneva, Switzerland Quotation from “Executive Summary: Contents “No show stoppers have been identified for 1 The charge for the assessment a possible future addition of the capability 2 Scenarios for ESSnuSB of a 5 MW H- beam to the 5 MW H+ beam 3 Executive Summary of the ESS linac built as presently foreseen. 4 Detailed upgrade measures Its additional cost is roughly estimated at 4.1 Civil engineering & integration 250 MEuros.” 4.2 Electrical network 4.3 RF sources, RF distribution & modulators 4.4 Cryogenics (plant + distribution) 4.5 Water cooling 4.6 Superconducting cavities, couplers & cryomodules 4.7 Beam physics 5. Appendix 1: Visit time table 6. Appendix 2: Indicative costing of the upgrade TIARA meeting at CERN, 18 October 2016 2016-10-17 15 Tord Ekelöf Uppsala University OVERVIEW OF THE ESSNUSB ACCUMULATOR RING M. Olvegård, T. Ekelöf, Uppsala University, Sweden E. Benedetto, M. Cieslak-Kowalska, M. Martini, H. Schönauer, E. Wildner, CERN, Geneva, Switzerland Paper presented at the 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams, HB2016, hosted by the ESS in Malmö, Sweden, 2016 July 3-8. TIARA meeting at CERN, 18 October 2016 2016-10-17 16 Tord Ekelöf Uppsala University Study of resonant multi-turn extraction from the ESSnuSB accumulator to obtain 100 μsec long proton pulses to generate 30 times brigther neutron pulses for neutron science Extracted beam From Elena Wildner’s Septum presentation at the EuroNuNet worshop in Sofia Closed orbit bumpers • Slow bumpers move the beam near the septum • Tune adjusted close to nth order betatron resonance • Multipole magnets excitedTIARA to define meeting at stable CERN, 18 area October in 2016 phase 2016-10-17 17 Tord Ekelöf Uppsala University 10/15/16 space, size depends on DQ = Q - Qr 17 Potential Upgradeability 2nd target and neutrino source From Colin Carliles talk at the EuroNuNet worshop in Sofia Compressing the msec pulse to match the moderating time of cold neutrons 2.86ms to 80µs 4 rings of 1100m Oce Each containing 25 pulses of 105ns Permanent magnets Peak intensity gain of 35 times D. McGinnis, M. Lindroos Total gain of 1000 times today & R. Miyamoto IPAC 2013 Reduces the instantaneous power on the target cf short pulsed source TIARA meeting at CERN, 18 October 2016 2016-10-17 18 Tord Ekelöf Uppsala University A few future conferences and workshops chaired by ESSnuSB members at which the progress in the studies of the ESS power upgrade and the accumulator ring will be reported 1. Upgrading Existing High Power Proton Linacs Workshop at ESS in Lund 8-9 November 2016 https://indico.esss.lu.se/event/618/timetable/#all.det ailed Co-Chairs M. Eshraki and T.Ekelof 2. International Particle Accelerator Conference IPAC 2017 in Copenhagen 14-19 May 2017 https://ipac17.org Chair M.Lindroos 3. Workshop on Neutrinos from Accelerators NUFACT2017 in Uppsala 25-20 September 2017 Chair T.Ekelof TIARA meeting at CERN, 18 October 2016 2016-10-17 19 Tord Ekelöf Uppsala University Mitigation of high power effects in the neutrino production target – studies from EUROnu being continued Eliane Bouquerel Downstream of the Four-target/horn accumulator ring system to mitigate the beam pulses the high proton beam are distributed in power (5 MW) and sequence on the rate (70 Hz) four targets Packed bed canister in symmetrical transverse flow configuration (titanium alloy spheres) Target inside the horn TIARA meeting at CERN, 18 October 2016 2016-10-17 20 Tord Ekelöf Uppsala University TIARA meeting at CERN, 18 October 2016 2016-10-17 21 Tord Ekelöf Uppsala University Study of superconducting solenoid to focus the pions forward + a dipole to separate pion charges as an alternative non-pulsed haron collector Maja Olvegård TIARA meeting at CERN, 18 October 2016 2016-10-17 22 Tord Ekelöf Uppsala University ESSnuSB PROJECT TO PRODUCE INTENSE BEAMS OF NEUTRINOS AND MUONS 16.3x1020 μ/year E. Bouquerel*, E. Baussan, M. Dracos, IPHC, UNISTRA, CNRS,on the behalf of the ESSνSB project Proceedings of HB2016, Malmö, Sweden, July2016 TIARA meeting at CERN, 18 October 2016 2016-10-17 23 Tord Ekelöf Uppsala University ESS neutrino and muons facility built in stages (or some of them) with increasing complexity Neutrons to ESS ESS proton Protons dump nm or nm Long driver p Baseline ESSnuSB Detector decay mm dumpTest Facility + - n + n Short Accumulator m or m m Decay m e Short Baseline nuSTORMBaseline channel or ring Detector Front ne + nm Detector end RLA Storag acceleratio e n ring Long Cooling Baseline Neutrino Detector Factory RCS Collider acceleratio ring Muon Collider n JP.Delahaye/CERN EURONUDET COST workshop (15/10/2016) TIARA meeting at CERN, 18 October 2016 2016-10-17 24 Tord Ekelöf Uppsala University 2 4 ESS-NUSTORM: a tentative layout J.-P.