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Jensen, M.

Paper Title Page
MOPCH164 Status of the Diamond Storage Ring Radio Frequency System 445
 
  • M. Jensen, M. Maddock, S.A. Pande, S. Rains, A. F. Rankin, D. Spink, A.V. Watkins
    Diamond, Oxfordshire
  • J. Alex, M. Mueller
    Thomson Broadcast & Multimedia AG, Turgi
  • B. A. Aminov
    CRE, Wuppertal
  • M. Pekeler
    ACCEL, Bergisch Gladbach
 
  The installation and commissioning of the Diamond Storage Ring RF system is nearing completion. Diamond will initially operate with two RF high power amplifiers and two cavities. The key components in each RF system are a 300 kW amplifier implemented through the combination of four 80 kW IOTs, a 500 MHz superconducting cavity providing up to 2 MV of accelerating voltage and an advanced analogue IQ Low Level RF (LLRF) system to control the cavity frequency, voltage and phase. We present here an update on the recent installation and early commissioning results of the RF systems.  
THPCH042 Numerical Estimations of Wakefields and Impedances for Diamond Collimators 2877
 
  • S.A. Pande, R. Bartolini, R. T. Fielder, M. Jensen
    Diamond, Oxfordshire
 
  The storage ring of the Diamond light source will use two collimators, one in horizontal and one in the vertical planes in the injection straight to protect the IDs from the injection and Touschek losses. These collimators, in the form of tapered metallic intrusions in to the vacuum chamber, will generate considerable wake fields and will contribute to the overall machine impedance. In this paper we present the results of ABCI and MAFIA numerical simulations to estimate these effects.  
THPCH168 RF Distribution System of the Diamond Master Oscillator 3188
 
  • A.V. Watkins, M. Jensen, M. Maddock, S.A. Pande, S. Rains, D. Spink
    Diamond, Oxfordshire
 
  A modular RF distribution system has been designed and built at Diamond Light Source to distribute the master oscillator (MO) signal. The system will deliver a low noise, phase stable 500 MHz signal to multiple points of use around the synchrotron facility. Providing phase stability and preserving noise performance over the distances required (up to 300m) have been the main design challenges. A modular approach provides future flexibility, and this paper describes each component, outlining design choices, components used, construction details and test results.