Ge, M. Choi, B.H. Furuta, F. Gillette, J.E. Gruber, T. Hartman, S.W. Joo, J. Kim, J.W. Kim, W.K. Lee, J. Liepe, M. O'Connell, T.I. Pamel, P.J. Sears, J. Shin, I. Veshcherevich, V. JACoW Geneva, Switzerland 978-3-95450-191-5 10.18429/JACoW-SRF2017-TUPB008 English 396-399 TUPB008 cavity ion radiation SRF multipactoring Contribution to a conference proceedings 2018 2018-01 https://doi.org/10.18429/JACoW-SRF2017-TUPB008 http://jacow.org/srf2017/papers/tupb008.pdf Two prototype half-wave-resonators (HWR; 162.5MHz and β=0.12) for the RAON project were tested at Cornell University. In this paper, we report and analyse detailed results from vertical tests, including tests of the HWRs without and with helium tank. Surface preparation at Research Instruments is discussed, as well as the development of new HWR preparation and test infrastructure at Cornell.