Measurement of the inelastic proton-proton cross-section at root s=7 TeV with the ATLAS detector RID F-6345-2010 RID G-8816-2011 RID F-2602-2010 RID C-5889-2009 RID G-6305-2011 RID F-7543-2011 RID B-2261-2010 RID B-6634-2009 RID G-1087-2011 RID A-6640-2010 RID C-9883-2009