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)