Egidijus Urbonavičius

Laboratory of Nuclear Installation Safety (17)
Chief researh associate
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Scientific article


Porfiri M. T., Taylor N., Ciattaglia S., Jin X. Z., Johnston J., Colling B., Eade T., Carloni D., Pinna T., Urbonavičius E. [LEI], Vale R., Volkanovski A., Caruso G.. Safety assessment for EU DEMO – Achievements and open issues in view of a generic site safety report In: Fusion Engineering and Design. Lausanne: Elsevier, 2020, Vol. 155, 111541, p. 1-5..
Ambrozini W., Lo Frano L., Cizelj L., Dieguez P., Urbonavičius E. [LEI], Cvetkov I., Diaconu D., Kloosterman J. L., Konings R. J. M.. Education, training and mobility: towards a common effort to assure a future workforce in Europe and abroad In: Journal Nuclear Science and Technology. Abingdon: EDP Sciences, 2020, Vol. 6, No. 29, p. 410-432. Science Citation Index Expanded. ISSN 0022-3131.


Taylor N., Ciattaglia S., Coombs D., Jin X. Z., Johnston J., Liger K., Mazzini G., Mora J. C., Pinna T., Porfiri M. T., Urbonavičius E. [LEI], Vale R., Widdowson A.. Safety and environment studies for a European DEMO design concept In: Fusion Engineering and Design. Lausanne: Elsevier, 2019, Vol. 146, p. 111-114. ISSN 0920-3796.
Abramovic I., Pavone A., Moseev D., Lopes Cardozo N. J., Salewski M., and W7-X Team, Alzbutas R. [LEI], Dundulis G. [LEI], Kaliatka T. [LEI], Karalevičius R. [LEI], Povilaitis M. [LEI], Rimkevičius S. [LEI], Urbonavičius E. [LEI]. Forward modeling of collective Thomson scattering for Wendelstein 7-X plasmas: Electrostatic approximation In: Review of Scientific Instruments. AIP, 2019, Vol. 90, No. 2, p. 1-12. ISSN 0034-6748.


Pisano F., Cannas B., Jakubiwski M. W., Niemann H., Sitjes A. P., Wurden G. A., Alzbutas R. [LEI], Dundulis G. [LEI], Kaliatka T. [LEI], Karalevičius R. [LEI], Povilaitis M. [LEI], Rimkevičius S. [LEI], Urbonavičius E. [LEI]. Towards a new image processing system at Wendelstein 7-X: From spatial calibration to characterization of thermal events In: Review of Scientific Instruments. Melville: AIP Publishing, 2018, Vol. 89, 123503, p. 1-10. ISSN 0034-6748, eISSN 1089-7623.
Dinklage A., Beidler C. D., Helander P., Fuchert G., Maaßberg H., Rahbarnia K., Sunn Pedersen T., Turkin Y., Wolf R. C., Alonso A., Andreeva T., Blackwell B., Bozhenkov S., Buttenschön B., Czarnecka A., Effenberg F., Feng Y., Geiger J., Hirsch M., Höfel U., Jakubowski M., Klinger T., Knauer J., Kocsis G., Krämer-Flecken A., Kubkowska M., Langerberg A., Laqua H. P., Marushchenko N., Mollén A., Neuner U., Niemann H., Pasch E., Pablant N., Rudischhauser L., Smith H. M., Schmitz O., Stange T., Szepesi T., Weir G., Windisch T., Wurden G. A., Zhang D., and the W7-X Team, (.., Alzbutas R. [LEI], Dundulis G. [LEI], Kaliatka T. [LEI], Karalevičius R. [LEI], Povilaitis M. [LEI], Rimkevičius S. [LEI], Urbonavičius E. [LEI], ...). Magnetic configuration effects on the Wendelstein 7-X stellarator In: Nature physics. London, England: 2018, Vol. 14, p. 855-860. ISSN 1745-2473.
Povilaitis M. [LEI], Urbonavičius E. [LEI]. Post-benchmark simulation of the THAI+ facility TH27 experiment In: Journal of Nuclear Science and Technology. Ablingdon, USA: Atomic Energy Society of Japan, 2018, Vol. 55, No. 7, p. 709-719. ISSN 0022-3131.


Taylor N., Ciattaglia S., Boyer H., Coombs D., Jin X. Z., Liger K., Mora J. C., Mazzini G., Pinna T., Urbonavičius E. [LEI]. Resolving safety issues for a demonstration fusion power plant In: Fusion Engineering and Design. 2017, Vol. 124, p. 1177-1180. ISSN 0920-3796.
Wolf R. C., Ali A., Alonso A., Baldzuhn J., Beidler C., Beurkens M., Biedermann C., Bosch H. C., Bozhenkov S., ...), Alzbutas R. [LEI], Dundulis G. [LEI], Kaliatka T. [LEI], Karalevičius R. [LEI], Povilaitis M. [LEI], Rimkevičius S. [LEI], Urbonavičius E. [LEI]. Major results from the first plasma campaign of the Wendelstein 7-X stellarator In: Nuclear Fusion. Briston: IOP Publishing, 2017, Vol. 57, No. 10, 102020, p. 1-13. ISSN 0029-5515, eISSN 1741-4326.
Povilaitis M. [LEI], Kelm S., Urbonavičius E. [LEI]. The Generic Containment SB-LOCA accident simulation: Comparison of the parameter uncertainties and user-effect In: Annals of Nuclear Energy. 2017, Vol. 106, p. 1-10. ISSN 0306-4549.

Conference paper


Urbonavičius E. [LEI]. Nuclear Fusion Research in Lithuania – history and perspectives In: Book of abstracts Joint International Conference Functional Materials and Nanotechnologies and Nanotechnology and Innovation in the Baltic Sea Region FM&NT – NIBS 2022 Riga, Latvia July 3 – July 6, 2022. Riga: Institute of Solid State Physics, University of Latvia, 2022, INV-25, p. 86-86. ISBN 978-9934-23-645-7 (for pdf files).


Rimkevičius S. [LEI], Urbonavičius E. [LEI], Jagelski J., Tkaczyk A., Auce A., Gudowski W., Juodis L., Galinis A. [LEI]. Baltic Region Initiative for Long Lasting InnovAtive Nuclear Technologies In: FISA 2019 Conference Proceedings 9th European Commission Conferences on EURATOM Research and Training in Safety of Reactor Systems 4-7 June, 2019 Pitesti, Romania. Luxembourg: European Union, 2020, p. 973. ISBN 978-92-79-98744-1.
Rimkevičius S. [LEI], Urbonavičius E. [LEI], Jagelski J., Tkaczyk A., Auco A., Gudowski W., Juodis L., Galinis A. [LEI]. Baltic Region Initiative for Long Lasting InnovAtive Nuclear Technologies In: FISA 2019 EURADWASTE ’19 the 9th European Commission (EC) conference on Euratom Research and Training in Safety of Reactor Systems Conference Proceedings 4-7 June, 2019 Pitesti, Romania. Luxembourg: Publications Office of the European Union, 2020, p. 989-989. ISBN 978-92-79-98744-1.


Diaconu D., Constantin M., Grasso G., Glinatsis G., Di Gabriele F., Alemberti A., De Bruyn D., Urbonavičius E. [LEI]. The Arcadia project in support of the Alfred concept In: 2014 22nd International Conference on Nuclear Engineering Prague, Czech Republic, July 7–11, 2014. Prague: ASME, 2017, p. 1-6. ISBN 978-0-7918-4593-6.
Povilaitis M. [LEI], Urbonavičius E. [LEI]. Simulation of the THAI+ TH27 Experiment Using ASTEC Code In: 17th International Topical Meeting on Nuclear Reactor Thermalhydraulics” (NURETH-17) September 3-8, 2017 Kinija. Sianas: 2017, p. 1-1..


Kontautas A. [LEI], Urbonavičius E. [LEI]. Accession of Lithuanian energy institute to nuclear fusion researches In: 2015 6th International Renewable Energy Congress (IREC) . Sousse-Tunisia: IEEE, 2015, p. 1-4. ISBN 978-1-4799-7947-9.
Povilaitis M. [LEI], Kelm S., Urbonavičius E. [LEI]. Uncertainty and sensitivity analysis of the generic containment SB-LOCA accident In: Proceedings of the 24 International Conference Nuclear Energy for New Europe. Portorož, Slovenia: NENE, 2015, p. 1-8..

Popular science article


Augutis J. [LEI], Babilas E. [LEI], Dundulis G. [LEI], Kaliatka A. [LEI], Kaliatka T. [LEI], Krikštolaitis R. [LEI], Martišauskas L. [LEI], Rimkevičius S. [LEI], Pabarčius R. [LEI], Povilaitis M. [LEI], Stankūnas G. [LEI], Urbonas R. [LEI], Urbonavičius E. [LEI]. Scientific inheritance of Eugenijus Ušpuras In: Kerntechnik. Munchen: Carl Hanser Verlag, 2020, Vol. 85, Iss. 2, p. 72-81. ISSN 0932-3902.


Urbonavičius E. [LEI], Minkevičius A. [LEI]. In pursuit to harness the power of the Sun – opportunities for Lithuanian science community In: EUROSAFE News August 2018. [online]:, 2018, [Accessed 31 August 2018]. Available from:


Urbonavičius E. [LEI]. BRILLIANT project – Cooperation in the Baltic region In: EUROSAFE news May 2017., 2017, Intern. prieiga


Urbonavičius E. [LEI]. Fast nuclear emergency tools (FASTINET) In: Eurosafe tribune. Media Cologne, Hürth: GRS & IRSN, 2015, No. 28, p. 19-19. ISSN ISSN: 1634-7676.
Urbonavičius E. [LEI], Pabarčius R. [LEI]. Radioaktyvių medžiagų nuotėkis ir avarinė parengtis įvykus avarijai atominėje elektrinėje (FASTNET projektas) In: Energetika. (Kronika) [EBSCO, IndexCopernicus, SCOPUS]. Vilnius: Lietuvos mokslų akademija, 2015, T. 61, Nr. 3-4, p. 9-10. ISSN 0235-7208.

International projects

Horizon Europe


Small Modular Reactors (SMR) are one of the key options for the near-term deployment of new nuclear reactors. Currently in Europe there is a growing interest towards the deployment ofMore


LEI coordinated project "Towards harmonisation in licensing of future nuclear power technologies in Europe" (HARMONISE). Innovative fission and fusion installations encompass novelMore


EUROfusion’s updated Fusion Research Roadmap aims to acquire the necessary knowledge to start constructing a demonstration fusion power plant (DEMO) five years after ITER is in full-pMore

Horizon 2020

ELSMOR project logo

ELSMOR (towards European Lisencing of Small MOdular Reactors) aims to create methods and tools for the European stakeholders to assess and verify the safety of light water small modulMore

MUSA project logo

The overall objective of the MUSA project is to assess the capability of SA codes when modelling reactor and SFP accident scenarios of GEN II, GEN III and GEN III+ reactor designs. ToMore

FASTNET project logo

The FASTNET project is a four-years European project funded by the Euratom Research and Training Programme 2014-2018. This project has received funding from the Euratom research and tMore


The region of the European Union around the Baltic sea especially the countries Estonia, Latvia and Lithuania are not adequately integrated to the European electricity grid. At the enMore


The goal of the project is an analysis of the applicability and technical feasibility of the IVMR strategy to high power reactors, both for existing ones (e.g. VVER 1000 type 320 unitMore


EUROfusion, the ‘European Consortium for the Development of Fusion Energy’, manages and funds European fusion research activities on behalf of Euratom. Thirty members*, representing More

Seventh Framework Programme (FP7)


The ARCADIA project has been conceived so as to provide a twofold support to the further development of nuclear research programs in the NMS, targeting two major areas included in theMore


The strategic objective of NC2I-R is to structure the European public and private R&D capabilities for delivering a nuclear cogeneration demonstrator fully meeting the market needMore


The objective of the NUGENIA+ project is to support the NUGENIA Association in its role to coordinate and integrate European research on safety of the Gen II and III nuclear installatMore


Since 2013, LEI participated in the Consortium, managed by the Institut de Radioprotection et de Sûreté Nucléaire (IRSN), by implementing EU Seventh Framework Programme project AdvancMore


The Fukushima accidents highlighted that both the in-depth understanding of such sequences and the development or improvement of adequate severe accident management measures is essentMore


The European Sustainable Nuclear Industrial Initiative was launched in November 2010 to anticipate the development a fleet of fast reactors with closed cycle. Three fast neutron technMore


Most of the actors involved in severe accident research in Europe, plus Canada, Korea and the United States (41 partners), will network in SARNET2 (Severe Accident Research NETwork ofMore


Today, about 80% of all energy produced comes from the fossil fuel (oil, carbon, and natural gas). European scientists are developing environmentally friendly, safe, and renewable eneMore

Sixth Framework Programme (FP6)


In 2006 scientists of LEI implemented a first ITER safety justification project, which was supported through the EC FP-6 program. The objective of the project was to investigate if hyMore


The Network of Competency SARNET – the project for the Integration and management of severe accidents phenomena in research in Europe – was launched in March, 2004. The SARNET projectMore

Nordic Energy Research Programme (NERP)

Nordic Energy Research logo thumbnail image

Establishment of Nordic-Baltic PhD and researcher mobility network in the field of the bioenergy (REMONET-Bioenergy) NERP (Nordic Energy Programme). Period of project implementatiMore