TatianaPhotoTatiana Marchenko has a background in physics, with a Master's degree from M.V. Lomonosov Moscow State University, and a PhD from the FOM-Institute for Atomic and Molecular Physics (Amsterdam). She held post-doctoral positions at the Laboratoire d’Optique Appliquée (ENSTA-Ecole Polytechnique) and at the Laboratoire de Chimie Physique-Matière et Rayonnement (LCPMR - Sorbonne University). Recruited in 2012 as CNRS Research Officer, in the group of Marc Simon at LCPMR, Tatiana is a specialist in atomic, molecular and optical physics, with a particular focus on ultrafast dynamics studies in molecules and atoms in the gas phase. Her experimental activities mainly concern different X-ray spectroscopy techniques performed on large instruments, mainly synchrotron and more recently XFEL (X-ray Free Electron Laser). One of the latest highlights of Tatiana Marchenko and her collaborators (international and LCPMR colleagues) deals with an original spectroscopy technique based on double-core-hole formation to probe nuclear and electron dynamics in molecules (Phys Rev. Lett. 119, 133001 (2017)).