Some conclusions JeanMarie De Conto Grenoble University n

Some conclusions Jean-Marie De Conto Grenoble University

n Please send me any ticket/bording pass, invoice, keep everything!

DESY workshop n « big » projects n n Important « new » topics (matching to networking activities) n n n Far beyond standard specifications: 9 m. A full beam loading operation @FLASH is under demonstration/achievement ESS (several common topics, teams and infrastructures) LHC (complete review of LLRF, crab cavities) New architectures (x. TCA…) and the question of standardization Reliability aspects (hardware vs software, redundancy/control codes…) Costing tools for sofware (to go further) Comitment for a strategy for an european SRF R&D/test infrastructure Common themes (not exhaustive) n n n Newcomers Multipactor (expe/techno/simulation) Cavity design, simulation and test, HOMs, diagnostics Couplers (people, structure, technology) Quarter wave resonators

PSI workshop n n n Stronger participation (~15 ~30 persons) and strong/excellent contributions More topics Still « big » projects (LHe. C, LHC, XFEL) with clear RF related issues Still topics about cavities (crab, bunchers, ESRF): continuity. Topics related to analytical models (cavities, RF networks) Large review of solid state amplifiers and power sources from several machines. Experience sharing. Lot of presentations about LLRF systems and/or specific components (x. TCA). MIXDES Participation of young physicists: very nice SCRF infrastructures: we have probably to go further Costs tools, reliability: nothing new, but can we ask for more? Time for discussion: may be too short (guilty: JMDC)

Rostock workshop n A lot of electromagnetic and innovative models, tools, with young participants n n Cavity design and tuning n n n n n Perturbation methods for cavity calculation Finite integration Maxwell solvers and FEM schemes Diagnostic via Beam excited HOMs models and experiment Progress of crab-cavities (general+LHC), from last year presentation Tuning issues for flat fields (Flash) LLRF and associated software, instrumentation, participation to workshops (supported by RFTech), FLASH develpopments General RF systems highlights (CERN, SPIRAL 2) Large CERN panorama Review of Darmstadt activities SRF infrastructure: completed Reliability: may be strengthened? – Costing tools? RFTech can provide financial support (with delays) deconto@lpsc. in 2 p 3. fr

Many thanks n n n For coming, despite the large amount of activities (including other workshops) For your contributions and the related work. And many thanks to Ursula van Rienen, Kathrin Krebs and Rostock University for hosting this workshop. Merry Christmas to all