Laboratory experiments simulating electron cyclotron masers in space K. Ronald, D.C. Speirs, M. King, T. Heelis, S.L. McConville, K.M. Gillespie, R. Bingham, C.W. Robertson, A.W. Cross and A.D.R. Phelps EPJ Web Conf., 149 (2017) 03015 Published online: 04 August 2017 DOI: 10.1051/epjconf/201714903015