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TY - CONF AU - Smaluk, V.V. ED - Zhao, Ning ED - Poole, John ED - Schaa, Volker RW TI - Beam-based Impedance Measurement Techniques J2 - Proc. of eeFACT2016, Daresbury, UK, October 24-27, 2016 C1 - Daresbury, UK T2 - ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e^+e^- Colliders T3 - 58 LA - english AB - Characterization of a vacuum chamber impedance is necessary to estimate stability conditions of a particle beam motion, to find a limit of the beam intensity and characteristic times of single-bunch and multi-bunch instabilities. For new accelerator projects, minimization of the vacuum chamber impedance is now the mandatory requirement. For an accelerator in operation, the impedance can be measured experimentally using various beam-based techniques. The beam-impedance interaction manifests itself in measurable beam parameters, such as betatron tunes, closed orbit, growth rates of instabilities, bunch length and synchronous phase. The beam-based techniques developed for measurement of the longitudinal and transverse impedance are discussed, including theoretical basics and experimental results. PB - JACoW CP - Geneva, Switzerland SP - 112 EP - 119 KW - ion KW - impedance KW - vacuum KW - simulation KW - damping DA - 2017/07 PY - 2017 SN - 978-3-95450-187-8 DO - 10.18429/JACoW-eeFACT2016-TUT3AH3 UR - http://jacow.org/eefact2016/papers/tut3ah3.pdf ER -