Stephan Pomp

Professor at Department of Physics and Astronomy; Applied Nuclear Physics

Telephone:: +46 18 471 68 50
Mobile phone:: +46 70 167 90 03
E-mail:: stephan.pomp@physics.uu.se
Visiting address:: Ångströmlaboratoriet, Regementsvägen 10
752 37 Uppsala
Postal address:: Box 524
751 20 UPPSALA

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Short presentation

Professor in applied nuclear physics and responsible for research and PhD student education in applied nuclear physics.

I am an experimental nuclear physicist with focus on studying nuclear fission and neutron-induced light ion production.

I use experimental facilities in various places in Europe (e.g. IGISOL in Finland, NFS@GANIL in France, EC-JRC in Geel, Belgium, GSI in Darmstadt, Germany, and n_TOF@CERN in Switzerland).

For theoretical work I use the nuclear model codes TALYS and GEF.

Keywords

experimental nuclear physics
nuclear data and nuclear data evaluation
nuclear fission
neutron facilities
nuclear technology
neutron-induced reactions
light-ion production

Biography

Diploma in physics from Friedrich-Alexander University Erlangen-Nürnberg, Germany in 1994.

PhD in nuclear and particle physics in 1999 from Uppsala University. The thesis topic was in the field of hyperon production via anti-protons and for this I was part of the PS185 collaboration and did experiments at the LEAR ring of CERN, Switzerland.

In 2006 I became Docent with a lecture titled "Att vara neutral - en neutrons kallelse".

I am professor in applied nuclear physics since 2012.

Currently I am the programme professor in applied nuclear physics and professor for PhD student education in applied nuclear physics.

Teaching

Over the past 20+ years I have been teaching in a wide variety of courses, e.g., "Introduction to nuclear physics and its application", "Experimental methods in physics", "Waves and optics", "Accelerators and detectors", and the preparatory course "Mathematics 3c".

Commissions of trust

Swedish representative in the Nuclear Physics European Collaboration Committee (NuPECC) since 2026-01-12.

Member if the Recruitment Committee at TekNat since 2026-01-01.

Since 2025 member of the board of the Department of Physics and Astronomy at Uppsala University.

From 2017 to 2024 member of Board for Appointment of Associate Professors (Docenturnämnden) with the Disciplinary Domain of Science and Technology at Uppsala University.

Member (ordinary) of the EPS Nuclear Physics Division Board from 2018 to 2024.

Research

My main interest is to study nuclear fission. The process is known since more than 80 years but it is, due to its complexity, still far from understood. Fission has been called the "complete nuclear physics lab" and this is one reason why fission is so interesting to study. Furthermore, fission has links to both applications (e.g., energy and medical isotope production) and fundamental research (e.g., hunt for new isotopes and the understanding of cosmic nucleosynthesis).

I am also interested in various types of neutron-induced reactions, e.g., light-ion production. Also here there is a clear link between basic nuclear physics research (reaction dynamics) and a range of applications (nuclear medicine, radiation therapy, radiation effects on electronics and material).

My research is experimental and I use various facilities in Europe for the experiments. Currently my research group and I are involved in several international collaborations. We run or plan experiments at IGISOL/JYFLTRAP in Jyäskylä, Finland, at the Joint research Centre of the European Commission in Geel, Belgium, at NFS@GANIL in Caen, France, at n_TOF@CERN, Geneva, Switzerland and at the FRS of GSI in Darmstadt, Germany.

Locally I am the PI for the NESSA neutron facility that is currently under construction in the FREIA hall at Ångström laboratory. This 14-MeV facility will be unique in the Nordic countries and aims at filling some of the gaps resulting from the closure of The Svedberg Laboratory and it neutron beams in Uppsala. and the reseaarch reactors in Studsvik and elsewhere in Scandinavia and Finland.

One of the application related aims of this research is the provision of high-quality evaluated nuclear data libraries, driven by needs from nuclear technology. Among the challenges is proper handling of uncertainties. My group and I are therefore also working on uncertainty quantification and uncertainty propagation methods with partners at, e.g., IAEA in Vienna, Austria and PSI in Villingen, Switzerland.

I have been main supervisor for:

Simone Cannarozzo (PhD 2025) "From scission to metastability - Isomeric yield ratios in fission studies"

Andrea Mattera (PhD 2017) "Studying neutron-induced fission at IGISOL-4"

Ali Al-Adili (PhD 2013) "Measurements of the 234U(n,f) Reaction with a Frisch-Grid Ionization Chamber up to En=5 MeV"

Riccardo Bevilacqua (PhD 2011) "Neutron-Induced Light-Ion Production from Iron and Bismuth at 175 MeV"

Vasily Simutkin (PhD 2011) "Fragment Mass Distributions in Neutron-Induced Fission of 232Th and 238U from 10 to 60 MeV"

I have been co-supervisor for:

Zhihao Gao (PhD 2023) "Isomeric yield ratios in nuclear fission"

Vasileios Rakopoulos (PhD 2018) "Isomeric yield ratio measurements with JYFLTRAP"

Peter Helgesson (PhD 2018) "Approaching well-founded comprehensive nuclear data uncertainties"

Kaj Jansson (PhD 2017) "Measurements of neutron-induced nuclear reactions for more precise standard cross sections and correlated fission properties"

Erwin Alhassan (PhD 2015) "Nuclear data uncertainty quantification and data assimilation for a lead-cooled fast reactor"

Peter Andersson (PhD 2014) "Fast-neutron tomography using a mobile neutron generator for assessment of steam-water distributions in two-phase flows"

Angelica Öhrn (PhD 2008) "Neutron scattering at 96 MeV"

Philippe Mermod (PhD 2006) "Neutron-deuteron scattering and three-body interactions"

Udomrat Tippawan (PhD 2004) "Secondary particle spectra from neutron-induced nuclear reactions in the 14 to 100 MeV range"

Publications

Selection of publications

Recent publications

All publications

Articles in journal

Conference papers

Conference proceedings (editor)

Fission Product Yields Data Current status and perspectives: Summary report of an IAEA Technical meeting

Dimitriou, Paraskevi; Hambsch, Franz-Josef; Pomp, Stephan

2016
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