EuCARD-2 is co-funded by the partners and the European Commission under Capacities 7th Framework Programme, Grant Agreement WP12 Management Report & EuCARD-2 Updates th April 2014 WP12 First Annual Review Meeting, CEA Saclay

WP12 Innovative RF Technologies This JRA focuses on the development of a range of technical solutions that has the potential to achieve significant performance increases in gradient, efficiency and beam quality of RF-based accelerator systems. Several novel techniques in the field of normal and superconducting RF technology have been selected, presenting the highest impact potential and with the additional benefit of profiting from exchanges and communication between these two distinct communities. Main R&D areas encompass: – SRF Thin Films – C Antoine (CEA Saclay); – High Gradient NC Cavities – W Wuensch (CERN) – SRF HOM Beam Diagnostics – R Jones (Manchester University) – RF Photocathodes – R Nietubyc (NCBJ) Reducing the footprint, machine energy consumption and overall cost of linear accelerators are of primary importance for all accelerators being developed today. High Risk  High Win!

WP12 Collaborative Team SRF Thin Films High Gradient NC SRF HOM Beam Diagnostic RF Photocathodes

WP12 Pushing the Envelope Beam Generation: – New photocathodes providing demonstration of highest beam intensities and smallest beam emittances. Acceleration: – Demonstration of the highest level of acceleration performance. Beam Diagnostics/Control: – Demonstration of high performance and low cost beam position diagnostic. Integrated and balanced programme encompassing high performance capabilities across both SC and NC technologies.

Fundamental Objectives 12.2Thin Films Exploitation of new superconducting materials, such as Nb 3 Sn and the development of new nano and multi-layer thin films, each anticipated to break new ground in the performance of SC accelerator cavities, with the potential of achieving gradients well beyond present Nb technology. 12.3High Gradient NC Cavities Development of an efficient NC structure capable of high gradient operation (Eacc > 100 MV/m) but free from dangerous wakefield contributions. 12.4SRF HOM Beam Diagnostics Development of electronics for utilising Higher Order Mode (HOM) signals from accelerating cavities for precision beam position diagnostics in high-energy electron linear accelerators, with the goal of reducing accelerator cost and length. 12.5RF Photocathodes Development of next generation advanced RF photocathodes, exploring revolutionary production techniques as lead deposition, diamond amplifier cathode and metallic photocathodes, enhancing the ability to reach fs response time, for more effective electron beam generation, capture and transport with high brightness and low intrinsic emittance.

Task 12.1 Management & Coordination The WP12 Task 12.1 management team: – Nicoleta Baboi (DESY) – Juliette Plouin (CEA) – Peter McIntosh (STFC) WP12 Steering Committee comprises above plus the 4 Task Leaders. Annual WP12 review meetings: – Alternating venues; CEA, DESY, STFC & CERN. – Each including a Task Leader SC meeting. – Approximately 1 month before each EUCARD-2 Annual Review.

WP12 Milestones MilestoneTitleBeneficiaryDateComments MS87Fundamental SRF Thin Film physics reportCEAM48Final Activity Report MS84Deposition test facility designed at CEA.CEAM40Facility designed and validated MS78Characterisation test facility implemented at HZBHZBM30Facility implemented and validated MS88 Report summarising the results obtained in characterising the various new thin film technologies developed, which include both multilayer and monolayer techniques CEAM48Final Activity Report MS81RF design CLIC_DDS_BUNIMANM36Activity Report. MS86RF design of fully interleaved structure and CLIC SW study.UNIMANM45Activity Report. Concluding final report MS76High power RF components fabricated and tested at low levelCEAM24Prototype completed and validated MS74Design concept RF front endPSIM12Activity Report MS77Phase stabilisation experiment designULANCM24Activity Report MS79Crab cavity electromagnetic designULANCM30Activity Report MS82Completed coupled cavity simulations of 8-cavity moduleUNIMANM36Activity Report MS80 Demonstrated operation of improved deposition system, Pb layers of 1 μm in thickness. NCBJM30Report on sample characterisation MS73Commissioning of the SAPI for operation with metal photocathodesSTFCM8Publication report MS75 Investigation of quantum yield and energy spectrum of the electrons, emitted from the metal photocathode surface in SAPI STFCM18Intermediate scientific report MS83 Manufacturing and commissioning of the photocathode transport system STFCM36Technical design report MS85 Investigation of the brightness of different metal photocathodes in a S-band NCRF gun STFCM42Scientific report Task 12.2 Task 12.3 Task 12.4 Task 12.5

WP12 Deliverables DeliverableTitleBeneficiaryDateComments D12.1 Deposition test facilities implemented and verified at CERN and INPG. CERNM18Report D12.5First resonator deposited and qualified at CERN.CERNM36Report D12.10Cavity deposited and qualified at CEA.CEAM48Report D12.2Initial progress report of task 12.3.CERNM18Report D12.6Intermediate progress report of task 12.3.CERNM36Report D12.11Final report of task 12.3.CERNM48Report D12.3Design of electronics for XFEL HOM diagnostics.DESYM18Report D12.7 Completed characterisation of HOMs in the 8-cavity XFEL 3HC module. UNIMANM36Report D12.12 Report on characterisation of HOMs in XFEL coupled 3HC cryomodule. UNIMANM48Report D12.4 Scientific report on photocathode R&D.STFCM18Report D12.8 Optimised procedure for microdorplets flattening with an UV laser. NCBJM36Report D12.9 Pb/Nb plug photocathodes measurements and characterization. HZDRM42Report D12.13Results of DAC implementation in SRF guns.HZBM48Report Task 12.2 Task 12.3 Task 12.4 Task 12.5

Deliverable Approval Process EuCARD-2: 62 deliverables and 94 milestones to review and approve. Huge task, needs to be well organised. Milestones: approved by WP Coordinator and Coordinator Deliverables: approved by Steering Committee and Coordinator after a WP review process. 2 months before deadlineProject Assistant send reminder to Responsible (with copy to WP Coordinator and Project Coordinator) 1 month before deadlineReport sent to WP Coordinator for comments. Between 30 and 20 days before deadline Start Review phase WP Coordinator or Author send Report to Project Assistant who enters report in EDMS and notifies the Reviewers: Coordinator, WP Coordinator, one selected member of SC. Comments entered in EDMS 10 days before deadline Start Approval phase Author enters comments and corrections and submits a final version. All SC is notified and can give comments or approve/reject the report. The Coordinator gives final approval At deadlineThe Deliverable Report is sent to EU Project Officer.

1 st Annual Report - URGENT Deadlines: Advised start of writing 1 April 2014 Advised input from Task Leaders to WP Coordinators~ 1 May 2014 Input from WP Coordinators to Project CoordinatorSunday 18 May 2014 Draft completed, submitted to Steering CommitteeY+3030 May 2014 Draft approved and available on web site Y+6030 June 2014 Size: Inputs from Task Leaders: 1 or 2 pages, including 1 or 2 pictures, graphs, tables. Inputs from WP coordinators: input from Tasks (between 8 and 12 pages) plus an introductory summary. Templates available at:

EUCARD-2 Annual Review May DESY Encourage all WP12 collaborators to attend. On Tuesday 20 th May: – WP12 Report by P McIntosh. – WP12 Highlight talk on: HOM-based Beam Diagnostics: from FLASH to the European XFEL, by N Baboi (DESY). On Wednesday 21 st May: – Parallel WP12 session (3-hour). – Utilisation to be determined with SC this week.

WP12 Publications AuthorTitleLink C.B. Baumier (IPNO) Task 12.2 Multilayers Activities at Saclay / OrsaySRF s/weioc02.pdf M Dehler (PSI) Task 12.3 Wake field monitors in a multi purpose X Band accelerating structure IBIC13: nf/IBIC2013/papers/webl3.pdf T Flisgen (UROS) Task 12.4 Scattering parameters of the 3.9 GHz accelerating module in a free-electron laser linac: A rigorous comparison between simulations and measurements Phys. Rev. ST Accel. Beams 17, (2014) R. Barday (HZB) Task 12.5 Characterization of a superconducting Pb photocathode in a superconducting rf photoinjector cavity Phys. Rev. ST Accel. Beams 16, – Published 6 December 2013 Every publication needs to be uploaded into CDMS CERN) by the management team. Please ensure we’re informed of all WP12 publications generated!

SharePoint Pages Contact lists Document sharing (templates, drafts, presentations, project documents, meeting minutes) List of actions / to do lists / prepare events Collaborative calendar (synchronised with Outlook calendar) Image/photo libraries Discussion forums SharePoint Workspace

WP12 Sharepoint Site Note: Need to have a CERN NICE account – follow instructions!

Accelerating News Newsletter Issue 9 published EuCARD-2 related stories in this issue: – Launching video – Explore accelerator applications (WP4) – FCC kick-off (sponsored by WP5) – A step towards Next Generation Magnets (WP10 ) 1315 subscribers! Survey results (overall rating 4.6/5) Planned stories for June 2014 – Report on Annual event – WP12 suggestions? In past issues: WP3 WP5 WP12 WP13 Task 12.2 Performance breakthrough for SRF thin film, utilising multi-layer, high Tc technologies. Task 12.3 Breakdown free performance capability demonstrated for >100MV/m NC RF structures. Task 12.4 High performance beam position diagnostic demonstrated for XFEL. Task 12.5 High performance (intensity, emittance) photocathodes demonstrated for SRF and NC applications.

Monographs 6 published so far, incl. EuCARD final report: WP12 Topics?!?!?

WP12 Website WP12 website can be found here:

WP12 Annual Review Organisation: Review hosted at: Group photograph during morning coffee break today. Review dinner this evening at ‘Au port du salut’ at 19:30 Laboratory tour: 09:00 – 10:30 tomorrow. Many thanks: To the CEA organising committee: – particularly Juliette Plouin and Catherine Desailly-Guyard To all WP12 task leaders Looking forward to a successful first WP12 review!

Tour Meeting Location