Study of the effect of current rise time on the formation of the precursor column in cylindrical wire array Z pinches at 1 MA - Bott, SC; Haas, DM; Eshaq, Y; Ueda, U; Beg, FN; Hammer, DA; Kusse, B; Greenly, J; Shelkovenko, TA; Pikuz, SA; Blesener, IC; McBride, RD; et al. (PHYSICS OF PLASMAS, 2009)