Probing local and electronic structure in Warm Dense Matter: single pulse synchrotron x-ray absorption spectroscopy on shocked Fe by Torchio, R, Occelli, F, Mathon, O, Sollier, A, Lescoute, E, Videau, L, Vinci, T, Benuzzi-Mounaix, A, Headspith, J, Helsby, W, Bland, S, Eakins, D, Chapman, D, Pascarelli, S, Loubeyre, P