Author: Burger, S.J.
Paper Title Page
THOB03 Long Term Investigation of the Degradation of Coaxial Cables 552
  • M. Kuntzsch, R. Schurig
    HZDR, Dresden, Germany
  • S.J. Burger
    Delta Gamma RF-Expert, Melbourne, Australia
  • T. Weber
    el-spec GmbH, Geretsried, Germany
  For the transport of RF signals coaxial cables with PTFE ('Teflon') as dielectric medium are widely used because they offer a wide bandwidth and low insertion loss. Coaxial cables that are routed in immediate vicinity to the beamline are exposed to ionizing radiation that is mainly generated by beam-loss. In this radiative environment cables change their electrical properties which directly affects the signal on the receiver side and in turn the measured beam parameters. This contribution describes a measurement setup at the superconducting CW accelerator ELBE that was used to investigate the degradation of coaxial cables under well-controlled conditions up to an accumulated dose of 94 kGy. Furthermore the acquired data up to 40 GHz of two coaxial cable samples are presented and the results are discussed.  
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