Institution: | 1. Department of Physics and Astronomy, University College London, London, UKbarry.p.mant.07@aberdeen.ac.uk https://orcid.org/0000-0002-3116-5364;3. Department of Physics and Astronomy, University College London, London, UK https://orcid.org/0000-0002-4552-4559;4. The Hamburg Center for Ultrafast Imaging, Universit?t Hamburg, Hamburg, Germany;5. Center for Free-Electron Laser Science (CFEL), Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany https://orcid.org/0000-0001-8770-6919;6. Department of Physics and Astronomy, University College London, London, UK https://orcid.org/0000-0002-4994-5238;7. Department of Physics and Astronomy, University College London, London, UK https://orcid.org/0000-0001-9286-9501 |