Assoc. Prof. Dr Matjaž Vencelj

Research AssociateE-mail: Tel: +38615885255

Dr. Vencelj focuses on the experimental physics of atomic nuclear structure and reactions, and on the design of complex detection systems for nuclear and subatomic physics research. His applicative work includes the development of biomedical and industrial sensors.

Recently, he works closely with the <link>Facility for Antiproton and Ion Research in Europe (FAIR) and coordinates the collaboration of Slovenian scientists within the experiments FRS-IC, DEGAS and R3B, as well as the design and construction of several related detectors and diagnostic modules.


  • BSc physics (University of Ljubljana, Faculty of mathematics and physics, 1999)
  • MSc in nuclear and particle physics (University of Ljubljana, Faculty of mathematics and physics, 2002)
  • PhD in nuclear and particle physics (University of Ljubljana, Faculty of mathematics and physics, 2006)


  • graduate research assistant at JSI, 1999 – 2006
  • Kernfysisch Versneller Instituut, University of Groningen, Holland, 2005 – 2007
  • Hi-light Opto Electronics B.V., Holland, 2005 – 2007
  • Research associate at JSI, 2007 –
  • Assistant professor, Faculty of mathematics and physics of the University of Ljubljana, 1999 –
  • Associate professor, Jožef Stefan International Postgraduate School, 2015 –

Field of work

  • modeling and design of detectors for ionizing photons and particles
  • spectroscopy of photons and particles at extremely high count rates
  • design of custom sensor systems in biomedicine and industry
  • analog and digital electronics design


  • Institute innovation for economy award, 2009
  • Chamber of commerce and industry innovation medal, 2018

Other projects



  • (2012 – 2014): Research voucher – Extension of MPPC functionality into a pile-up regime, PR-04871
  • (2011 – 2014): WP head and Institute coordinator, Competence centre for biomedical engineering, PR-03953
  • (2012): Reseach for external commercial customer, Robust coincidence detector for the multi-channel digital pulse processor, PR-04709