Doc. Dr Sabina Markelj

Senior Research AssociateE-mail: Tel: +38615885265

Field of research of dr. Markelj is the study of interaction of hydrogen isotopes with materials. Due to the many hydrogen related strategically important applications for the development of mankind (fusion, hydrogen fuel cells, plasma treatment, etc.) this field is very lively and competitive. In order to be able to create paths for new discoveries and knowledge, the researcher had to take an innovative approach in her research path, especially in the development of new techniques and the use of different measuring tools. Her main tools are ion beam methods (hydrogen isotope depth profiling in materials) and spectroscopy of vibrationally excited hydrogen molecules (the method is based on dissociative electron capture into hydrogen molecules). Since 2012, she has focused on the studies of retention and transport of hydrogen isotopes in tungsten with a damaged crystal lattice, trying to reproduce the irradiation damage that will result from neutron irradiation in fusion reactors. The specialty of her research is that she monitors processes on and below the surface in situ and in real time.


  • univ. dipl. physics (University of Ljubljana, Faculty of Mathematics and Physics, 2004)
  • doctoral thesis (University of Ljubljana, Faculty of Mathematics and Physics, 2010)


  • young researcher at JSI, 2004 – 2010
  • assistant with PhD at JSI, 2010-2014
  • Physics of Interactions of Ions and Molecules (PIIM), France, 2012– 2012
  • Research associate at JSI, 2014 – 2019
  • Senior research associate at JSI, 2019 - today

Field of work

  • thermonuclear fusion
  • studies of hydrogen interactions with materials
  • vacuum technology
  • ion beam methods

Other projects


  • (2014 – 2020) Work package “Preparation of Efficient Plasma-Facing Component (PFC) Operation for ITER and DEMO˝ (WP PFC), EUROfusion consortium, EURATOM H2020
  • (2013 – 2018) IAEA Co-ordinated Research Project entitled ‘Hydrogen Retention in Self-Damaged and He Irradiated Tungsten and Alloys for PFC’; IAEA CRP F43021 ‘Plasma-Wall Interaction with Irradiated Tungsten and Tungsten Alloys in Fusion Devices’


  • (2019 – 2021) N1-0089 Electron screening in nuclear recations
  • (2019 – 2023) P2-0405 Fusion technologies
  • (2004 – 2020) P1-0112 Studies of atoms, molecules and structures by phonons and particles