Beg, F. N. [P:(DE-HGF)0] ; Wei, M. S. [P:(DE-HGF)0] ; Dangor, A. E. [P:(DE-HGF)0] ; Gopal, A. [P:(DE-HGF)0] ; Tatarakis, M. [P:(DE-HGF)0] ; Krushelnick, K. [P:(DE-HGF)0] ; Gibbon, P. [P:(DE-Juel1)132115] ; Clark, E. L. [P:(DE-HGF)0] ; Evans, R. G. [P:(DE-HGF)0] ; Lancaster, K. L. [P:(DE-HGF)0] ; Norreys, D. A. [P:(DE-HGF)0] ; Ledingham, K. W. D. [P:(DE-HGF)0] ; McKenna, P. [P:(DE-HGF)0] ; Zepf, M. [P:(DE-HGF)0]