Global helium abundance measurements in the solar corona

J. D. Moses, E. Antonucci, Jeffrey Newmark, F. Auchère, Silvano Fineschi, M. Romoli, Daniele Telloni, G. Massone, L. Zangrilli, Mauro Focardi, Federico Landini, M. Pancrazzi, Guglielmo Rossi, Andrea Marco Malvezzi, Dennis Wang, Jean-Christophe Leclec’h, Jean‐Pierre Moalic, F. Rouesnel, L. Abbo, A. Canou, Nicolas Barbey, C. Guennou, John M. Laming, J. R. Lemen, J. P. Wuelser, John L. Kohl, Lawrence D. Gardner