Measurements of fast electron scaling generated by petawatt laser systems

T. Tanimoto, H. Habara, R. Kodama, M. Nakatsutsumi, K.A. Tanaka, K.L. Lancaster, J.S. Green, R.H.H. Scott, M. Sherlock, P.A. Norreys, R.G. Evans, M.G. Haines, Satyabrata Kar, Matthew Zepf, J. King, T. Ma, M.S. Wei, T. Yabuuchi, F.N. Beg, M.H. KeyP. Nilson, R.B. Stephens, H. Azechi, K. Nagai, T. Norimatsu, K. Takeda, J. Valente, J.R. Davies