[1] Griffith Univ, ARC Ctr Excellence Coherent Xray Sci, Nathan, Qld 4111, Australia
[2] Griffith Univ, Ctr Quantum Dynam, Australian Attosecond Sci Facil, Nathan, Qld 4111, Australia
[3] Westfal Wilhelms Univ, Atom & Elect Phys Grp, Munster, Germany
[4] Drake Univ, Dept Phys & Astron, Des Moines, IA USA
[5] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, Russia
[6] Australian Natl Univ, Res Sch Phys Sci, Canberra, ACT, Australia
[7] Univ Melbourne, ARC Ctr Excellence Coherent XRay Sci, Melbourne, VIC, Australia