Yang, L. Laxdal, R.E. Zvyagintsev, V. JACoW Geneva, Switzerland 978-3-95450-178-6 10.18429/JACoW-SRF2015-TUPB096 English 832-836 TUPB096 damping ISAC cavity simulation resonance Contribution to a conference proceedings 2015 2015-12 http://dx.doi.org/10.18429/JACoW-SRF2015-TUPB096 http://srf2015.vrws.de/papers/tupb096.pdf ISAC-II superconducting quarter wave resonators are equipped with mechanical dampers to supress mechanical oscillations of the cavity structure. The study has been carried out to optimize the damper efficiency.