1. Design Studies Rob Edgecock/RAL

2. Outline Introduction – a reminder Scope of WDS Current status Problems FP6 Design Study Status Plans Conclusions

3. Introduction Last year: - time for a “3 rd ” Nufact design study - this time involving all 3 regions - World Design Study (WDS) Steering group created US:Steve Geer Bob Palmer Mike Zisman Japan:Yoshi Kuno Yoshi Mori Kenzo Nakamura Europe:Alain Blondel Rob Edgecock (chair) Helmut Haseroth Charged with: - define scope and charge - initiating NuFact’04 obvious target, but…….. …….one or two problems have delayed start Much done, but more work required Still plan to start soon Comments very welcome!

4. WDS Scope Much discussion about this (still)! Concluded WDS must acknowledge current status In particular, existing international “sub-collaborations” Cannot subsumed into WDS (by us) Identified six possible sub-collaborations Either formed, forming or (perhaps) should be formed

5. WDS Scope Sub-collaborationSummary of Task 1Proton DriverDefinition of critical parameters and R&D on components 2TargetryR&D on solid and liquid targets to prove viability; R&D on pion collection 3MICEDemonstration and study of ionisation cooling 4FFAGsStudy of FFAG acceleration, proof of principle and R&D on critical components 5Design and engineering studies Cost and performance optimised Neutrino Factory Design 6Physics and detectors Define parameters for accelerator & detector, inc. detector cost Mainly hardware R&DMainly simulations and theory

6. Scope Overall coordination of all sub-collaborations required in longer term Not by us – we are merely encouraging creation of some WDS: concentrate on simulations, theory, etc  cost optimised NF layout, inc. detectors Aims: - continue studies of alternative options for machine - integrate alternatives via end-to-end simulations - select “best” based on cost/performance optimisation - include detector(s) in cost optimisation Follows on directly from previous feasibility studies Will require close interaction with other sub-collaborations Possible duration: 4-5 years(?), hopefully starting soon Main deliverable: detailed design report

7. WDS Charge The feasibility of a Neutrino Factory has been demonstrated by a number of studies performed in the US, Japan and Europe. The cost, however, as determined by the second study in the US, was higher than is desirable and since it was published work has been on-going to find cheaper alternatives to the most expensive parts of the machine, while maintaining the performance. What is required now is a “third” feasibility study which brings these studies to a close, does end-to-end simulations of the machine and develops an overall cost optimisation of the machine plus detectors. For the “best” layout, more detailed engineering should be performed and a detailed design report produced. In detail, the charge is: 1) 1)continue simulation studies of different elements of the accelerator complex 2) 2)identify related R&D that needs to be done and initiate international collaborations to do it 3) 3)once the studies of the different options in 1 are complete, do end-to-end simulations to demonstrate feasibility of at least one layout and perform cost optimisations with far detectors 4) 4)if there is more one than layout, select the best based on cost and performance optimisations 5) 5)write preliminary design report for selected option 6) 6)perform detailed engineering studies of the selected option 7) 7)at the end of the study, write a detailed design report

8. Next Steps……. Get endorsement and comments from three regions Plans have been presented to: - EMCOG - MUTAC Will need to be presented in Japan Some action required When WDS is endorsed in all three regions: - identify likely contributors - develop detailed plans in collaboration - setup management structure, WP, etc - identify host laboratory - etc!

9. Design Study in Europe Funding difficulties in Europe Some improvement recently: - EC FP6 - UK - CERN management But mainly for R&D: - proton driver - target & TT2A - MICE - FFAGs Not part of current WDS Big hope: FP6 Design Study - up to 10MEUR - funds both simulation and R&D - 4 year duration

10. FP6 Design Study Three submission dates defined by EC: - March 2004 - March 2005 - March 2006 Created a steering committee Defined 8 WPs Website: http://hepunx.rl.ac.uk/~edgecock/NufactDS Director:Ken Peach Coordinator:Rob Edgecock Japanese representative:Yoshi Mori US representative:Mike Zisman BENE representative:Vittorio Palladino Proton Driver:Roland Garoby Chris Prior Targetry:Roger Bennett Jean-Eric Campagne MICE:Alain Blondel John Cobb FFAGs:Francois Meot ? Accelerator FS:Helmut Haseroth Rob Edgecock Physics & Detectors:Mauro Mezzetto Pilar Hernandez Paolo Strolin WPTitleResponsibleSummary 1ManagementEdgecock Proton DriverGarobyInsufficient manpower 2TargetryBennettR&D on targets to prove viability; engineering of target station 3CollectionCampagneViability of horn 4MICEBlondelR&D on critical components 5FFAGsMeotR&D on SC dipoles 6MachineHaserothCost and performance optimised Neutrino Factory Design 7Physics and detectors Mezzetto Strolin Define parameters for accelerator & detector, inc. detector cost ??????????

11. Current Status Waiting for Round 2 decision – September In the mean time: – – Start anyway! – – Try and increase participation – – Focus on specific projects to attract new people – – Talking to CERN bosses for small resource increase – – Investigating alternative FP6 actions In addition, APS studies in US WDS not starting today!  WDS not starting today! Comments?