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TY - CONF AU - Kuntzsch, M. AU - Burger, S.J. AU - Schurig, R. AU - Weber, T. ED - Schaa, Volker RW TI - Long Term Investigation of the Degradation of Coaxial Cables J2 - Proc. of IBIC2018, Shanghai, China, 09-13 September 2018 CY - Shanghai, China T2 - International Beam Instrumentation Conference T3 - 7 LA - english AB - 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. PB - JACoW Publishing CP - Geneva, Switzerland SP - 552 EP - 555 KW - radiation KW - insertion KW - scattering KW - operation KW - photon DA - 2019/01 PY - 2019 SN - 978-3-95450-201-1 DO - DOI: 10.18429/JACoW-IBIC2018-THOB03 UR - http://jacow.org/ibic2018/papers/thob03.pdf ER -