Photon acceleration by laser produced wakefields on Astra

C.D. Murphy, Raoul M. G. M. Trines, J.L. Collier, E.J. Divall, P.S. Foster, C.J. Hooker, A.J. Langley, J,M. Smith, P.A. Norreys, Robert Bingham, Albert Reitsma, J. G. Gallacher, Richard Viskup, Dino Jaroszynski, S.P.D. Mangles, Z Najmudin, A.G.R. Thomas, K. Krushelnick