Proton acceleration enhanced by a plasma jet in expanding foils undergoing relativistic transparency

Powell, H.W.; King, M.; Gray, R.J.; MacLellan, D.A.; Gonzalez-Izquierdo, B.; Stockhausen, L.C.; Hicks, G.; Dover, N.P.; Rusby, D.R.; Carroll, D.C.; Padda, H.; Torres, R.; Kar, S.; Clarke, R.J.; Musgrave, I.O.; Najmudin, Z.; Borghesi, M.; Neely, D. and McKenna, P.