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TY - CONF AU - Freemire, B.T. AU - Arriaga, G. AU - Bowring, D.L. AU - Kochemirovskiy, A.V. AU - Moretti, A. AU - Phan, H.D. AU - Tollestrup, A.V. AU - Torun, Y. AU - Yonehara, K. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Low Powered RF Measurements of Dielectric Materials for use in High Pressure Gas Filled RF Cavities J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - The Helical Cooling Channel scheme envisioned for a Muon Collider or Neutrino Factory requires high pressure gas filled radio frequency cavities to operate in superconducting magnets. One method to shrink the radii of the cavities is to load them with a dielectric material. The dielectric constant, loss tangent, and dielectric strength are important in determining the most suitable material. Low powered RF measurements of the dielectric constant and loss tangent were taken for multiple purities of alumina and magnesium calcium titanate, as well as cordierite, forsterite, and aluminum nitride. Measurements of alumina were consistent with previously reported results. The results were used to design an insert for a high powered RF test that included sending beam through the cavity. PB - JACoW CP - Geneva, Switzerland SP - 3387 EP - 3389 KW - cavity KW - simulation KW - radio-frequency KW - factory KW - collider DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-WEPTY050 UR - http://jacow.org/ipac2015/papers/wepty050.pdf ER -