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TY - CONF AU - Schmidt-Föhre, F. AU - Kube, G. AU - Wittenburg, K. ED - Kim, Changbum ED - Schaa, Volker R. W. ED - Kim, Dong-Eon ED - Lee, Jaeyu TI - Comparison of Two Long Term Drift Stabilization Schemes for BPM Systems J2 - Proc. of IBIC2021, Pohang, Rep. of Korea, 24-28 May 2021 CY - Pohang, Rep. of Korea T2 - International Beam Instrumentation Conference T3 - 10 LA - english AB - For the planned upgrade of synchrotron radiation sources PETRA (called PETRA IV) at DESY a much higher beam brilliance is requested. In order to measure according beam positions and to control orbit stability to the corresponding level of accuracy, a future high-resolution BPM system has to deliver the necessary requirements on machine stability. This needs to enable long-term drift requirements of even less than 1 micron beam position deviation per week. Such a specification goal requires an additional long-term drift stabilization of the beam position monitor (BPM) readout scheme for PETRA IV, which will include a compensation of BPM cable parameter drifts. This paper discusses a comparison of two common compensation schemes using different signal conditioning features, typically needed at machine topologies with long BPM cable paths. Certain critical aspects of the different schemes are discussed in this report, while existing successful measurements are referred in some references. PB - JACoW Publishing CP - Geneva, Switzerland SP - 145 EP - 149 KW - electron KW - electronics KW - radiation KW - controls KW - instrumentation DA - 2021/10 PY - 2021 SN - 2673-5350 SN - 978-3-95450-230-1 DO - doi:10.18429/JACoW-IBIC2021-MOPP36 UR - https://jacow.org/ibic2021/papers/mopp36.pdf ER -