Wu, G. Aderhold, S. Chandrasekaran, S.K. Crawford, A.C. Grassellino, A. Grimm, C.J. Ozelis, J.P. Sergatskov, D.A. Vostrikov, A. JACoW Geneva, Switzerland 978-3-95450-178-6 10.18429/JACoW-SRF2015-TUPB099 English 844-846 TUPB099 cavity shielding SRF cryogenics niobium Contribution to a conference proceedings 2015 2015-12 http://dx.doi.org/10.18429/JACoW-SRF2015-TUPB099 http://srf2015.vrws.de/papers/tupb099.pdf High quality factor niobium cavities require minimal residual magnetic field around the high magnetic field region. A typical global magnetic shield takes more material and provides less effective magnetic screening. On the other hand, local magnetic shield has to introduce complex geometries to cover access ports and instrumentation and thermal straps. Local magnetic source and thermal current will increase residual field seen by SRF cavities regardless the complexity of local magnetic shield. Magnetic foils that is cryogenic compatible provides a great benefit to reduce residual magnetic field. This paper will describe the evaluation of such magnetic foils in both vertical and horizontal test.