Author Affiliations

M. G. Pullen,^1,2,* W. C. Wallace,^1,2 D. E. Laban,^1,2 A. J. Palmer,^1,2 G. F. Hanne,³ A. N. Grum-Grzhimailo,^4,5 B. Abeln,⁴ K. Bartschat,⁴ D. Weflen,⁴ I. Ivanov,⁶ A. Kheifets,⁶ H. M. Quiney,⁷ I. V. Litvinyuk,² R. T. Sang,^1,2 and D. Kielpinski^1,2

¹Australian Research Council Centre of Excellence for Coherent X-Ray Science, Griffith University, Nathan, Queensland 4111, Australia

²Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Nathan, Queensland 4111, Australia

³Atomic and Electronics Physics Group, Westfälische Wilhelms-Universität, Münster, Germany

⁴Department of Physics and Astronomy, Drake University, Des Moines, Iowa 50311-4505, USA

⁵Institute of Nuclear Physics, Moscow State University, Moscow, Russia

⁶Research School of Physical Sciences, The Australian National University, Canberra, Australian Capital Territory, Australia

⁷Australian Research Council Centre of Excellence for Coherent X-Ray Science, University of Melbourne, Melbourne, Victoria, Australia

^*Corresponding author: mgpullen@gmail.com