Ralph Aßmann (DESY) 2nd collaboration week November 24th, 2017, Lisbon WP1 EuPRAXIA Project Ralph Aßmann (DESY) 2nd collaboration week November 24th, 2017, Lisbon http://eupraxia-project.eu

WP1 Excellent place, good discussions, good review, new insights, good progress... Thanks to everybody for the great work. Also discussed next step forward: Classifying solutions New post-CDR and pre-construction phase Lot’s of technical discussions... R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

EuPRAXIA Baseline(s) Limited number of baseline solutions (1 – 3) Choices of most promising approaches (balance technical readiness, performance, cost) Installed and operational from day 1 High technical readiness level: reasonable extension from today (e.g. limited repetition rate) R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

Evaluation Criteria (to be completed) Criterion Weight Score Technical Readiness Level 5 years Technical Readiness Level 10 years Technical judgement criteria: 5 GeV performance FEL Performance 5 GeV based on start to end simulations Flexibility and tuning capabilities FEL Performance 1 GeV based on start to end simulations Cost Size Innovation and Technical Disruptiveness New parameter reach beyond conventional accelerators Future technology/performance reach and impact Upgradeability R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

Development Path(s) Included Developments paths envisaged during EuPRAXIA operation (e.g. towards high repeti-tion rate) Options that we consider required for the scientific/technical goals of EuPRAXIA and therefore should be included into construction funding (costing extra money) Options that we get for free and do not slow down overall implementation work: all necessary hardware is part of baseline (e.g. hybrid solutions) and teams available to work on this in EuPRAXIA Lower technical readiness level: not available for day 1 but required for EuPRAXIA goals R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

Backup and Risk Mitigating Options Options that were not selected as most promising for the EuPRAXIA baseline but that offer interesting features Options that we get for free and that would slow down overall implementation work: major beamtime needed which is not available, teams and institutes interested in this will be fully busy on other topics Might be required for risk mitigation in case that a backup option proves not feasible for whatever reason Includes both high and low technical readiness level Not included into construction funding: in case needed would be funded through budget shifts R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

Who Will Decide? Input from WP members and leaders WP leaders prepare proposal(s) EuPRAXIA management will sort and assemble proposals EuPRAXIA Steering Committee will take the overall working decisions as long as not affecting overall goals and scope EuPRAXIA Collaboration Board will take decisions affecting scope and overall goals R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

New Post-CDR Phase R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

Technical: Tolerances and Alignment I Overall Accelerator Reference line Offset Dx Rotation Dx’ Each element on the accelerator line has assigned alignment errors like defined above, in x, y, z RF cavities, plasma cells, mirrors, magnets, diagnostics, ... Alignment campaigns minimize alignment errors R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

Technical: Tolerances and Alignment II Offset Dx Overall Accelerator Reference line Offset Dx Rotation Dx’ Laser Rotation Dx’ Same for laser... Offsets and angles must be defined with respect to the overall reference line. R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

Technical: Tolerances and Alignment III Offset Dx Overall Accelerator Reference line Offset Dx Beam Rotation Dx’ Laser Rotation Dx’ Same for laser... Offsets and angles must be defined with respect to the overall reference line. R. Aßmann (DESY) - EuPRAXIA Mid-Term Review

Thank You R. Aßmann (DESY) - EuPRAXIA Mid-Term Review