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Fifth CW and High Average Power RF Workshop

25–28 Mar 2008
CERN
Europe/Zurich timezone

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Session

Wednesday afternoon

26 Mar 2008, 14:00
40-S2-C01 (CERN)

40-S2-C01

CERN

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  1. 24. RF Systems for NSLS-II
    Mr James Rose (Brookhaven)
    26/03/2008, 14:00
    The NSLS-II is a new 3rd generation light source being designed at Brookhaven. A key design feature is a large circumference with soft (25m radius) bends which enable damping wigglers to reduce the emittance from 2.1nm-rad to <1nm-rad. The RF power requirement is dominated by the wiggler radiation, and the storage ring RF system is installed in stages as damping wigglers are added. The...
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  2. 10. Elettra RF System Upgrade: Commissioning and Operation of the 500 MHz 150 kW Plant
    Dr Alessandro Fabris (Sincrotrone Trieste)
    26/03/2008, 14:40
    The first phase of the upgrade of the RF System of Elettra is completed. The 500 MHz 150 kW cw plant has been installed and is in operation on the machine. The 150 kW amplifier is based on the combination of two 80 kW IOTs. After a recall of the targets of the project, this presentation gives a review of the performances of the system and reports on the experience during the commissioning and...
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  3. 16. Vector Control Algorithm for Efficient Fan-Out RF Distribution *
    Dr Yoon Kang (Oak Ridge National Laboratory)
    26/03/2008, 15:20
    A fan-out power distribution algorithm with RF vector control using reactive transmission line circuit parameters for maximum power efficiency is presented. If a fixed power splitting system with individual cavity voltage control at each cavity input is used, the power efficiency becomes lower since the RF power source must deliver more power than needed by cavities. The proposed fan-out power...
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  4. 18. ALBA RF amplifier system based on Inductive Output Tubes (IOT)
    Mr Paco Sanchez (CELLS)
    26/03/2008, 16:15
    The ALBA RF accelerating cavities are powered up to 150 kW cw at 500 MHz. This power is obtained by combining the power from two 80 kW IOTs with a cavity combiner (CaCo). CaCo is a new development, designed and built in close cooperation between CELLS and Thales Electron Devices (TED). Thomson Broadcast & Multimedia (TBM) designed the amplifier system including the power supplies and local...
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  5. 9. LHC RF Embedded SC Cavity Conditioning System
    Mr John Molendijk (CERN)
    26/03/2008, 16:55
    The LHC RF system consists of 16 supra-conductive cavities each individually driven by a 300kW klystron with its associated cavity controller electronics modules. The cavity conditioning system has been embedded in the cavity controller by addition of an independent VME controlled DDS based, versatile dual FM signal generator. The combined generator outputs are gain controlled and interlocked...
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  6. 27. Vacuum Electron Device Limitations for High Power RF Sources
    Mr Thomas Grant (Communication and Power Industires)
    26/03/2008, 17:35
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