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Third SPL Collaboration Meeting

Third SPL Collaboration Meeting. Working Group 1 Session 1 Review of RF Distribution Layouts and Power Requirements. RF Layouts - Reminder. Comparison of RF Power schemes for SPL – Option 1: 1 Klystron/4 Cavities.

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Third SPL Collaboration Meeting

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  1. Third SPL Collaboration Meeting Working Group 1 Session 1 Review of RF Distribution Layouts and Power Requirements Third SPL Collaboration Meeting, CERN November 2009

  2. RF Layouts - Reminder Comparison of RF Power schemes for SPL – Option 1: 1 Klystron/4 Cavities • Linear distribution, using compact “planar” hybrids with individually adjusted coupling. • Vector modulators for fast phase/amplitude field control • Mech. phase shifters for cavity phasing or isolation Third SPL Collaboration Meeting, CERN November 2009

  3. SPL RF Power Distribution – Costing Costing of Major Components Third SPL Collaboration Meeting, CERN November 2009

  4. SPL RF Power Distribution – Costing Comparison of RF Power schemes for LPSPL Is option 3a the preferred one ? Third SPL Collaboration Meeting, CERN November 2009

  5. Key Issues for WG1 - 1 • IMMEDIATE • Confirm baseline layout for Low/High B sections • - Performance of the different layout options • Stability/repeatibilityattainable in presence of microphonics, Lorenz detuning, detuned cavities, reflections due to RF distribution component imperfections • - Difficulties with long waveguides (e.g. for RF Feedbacks)? • Power Margins needed – identify & quantify definitively – bad/good cavities • Klystron Modulator specs and design options – HPSPL needs, including space & integration ! • Power Coupler options – existing design & experience, overall review, requirements to get to high power – studies needed, protoypingrequirements • Need for adjustable coupler – cryostat tolerances? • Integration studies, get first version of Klystron Gallery layout / Integration • Investigate cost-cutting solutions in the RF Power and LLRF systems Third SPL Collaboration Meeting, CERN November 2009

  6. Key Issues for WG1 - 2 • LONGER TERM • Power Sources • - Magnetrons - future development programs • - IOTs – follow up with manufacturers • Preparation for hardware tests CERN / Outside on RF components • Identify further studies needed • For the above agree on collaboration partner responsibilities, milestones and planning Third SPL Collaboration Meeting, CERN November 2009

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