Robertas Alzbutas

Laboratory of Nuclear Installation Safety (17)
Senior research associate
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Book or monograph chapter


Alzbutas R. [LEI]. Risk zoning and PSA in relation to risk of external events In: Resilience management and renewable energy processes. Societa Editrice "Il Ponte Veccchio", 2016, p. 115-134. ISBN 978-88-6541-552-8.



Ahn. D.-H., Alzbutas R. [LEI], Carroll B., Duan X., Hechmann K., Jevremovic T., Liang D., Lydell B., Mohaghegh Z., Riznic J., Sakurahara T., Wang M., Zammali C.. Technical Insights from Benchmarking Different Methods for Predicting Pipe Failure Rates in Water Cooled Reactors In: IAEA-TECDOC-1988 FINAL REPORT OF A COORDINATED RESEARCH PROJECT. Vienna: IAEA, 2021, p. 1-128. ISBN 978-92-0-141121-1.

Scientific article



Alzbutas R. [LEI], Vaišnoras M. [LEI], Šarūnienė I. [LEI], Krikštolaitis R. [LEI], Valinčius M. [LEI], Babilas E. [LEI], Augutis J. [LEI], Rimkevičius S. [LEI], Iešmantas T. [LEI], Anusauskas F., Mataitis L.. Aggregated Risk Assessment and Survey for Risk Reduction in Oil Terminals In: Sustainability. Basel: MDPI, 2021, Vol. 13, 12169, p. 1-21. ISSN 2071-1050.
Heckmann K., Alzbutas R. [LEI], Wang M., Jevremovic T., Lydell B. O. Y., Sievers J., Duan X.. Comparison of sensitivity measures in probabilistic fracture mechanics In: International Journal of Pressure Vessels and Piping . Oxford: Elsevier, 2021, Vol. 192, 104388, p. 1-11. ISSN 0308-0161, eISSN 1879-3541.


Cheng W.-C., Sakurahara T., Zhang S., Farshadmanesh P., Reihani S., Kee E., Mohaghegh Z., Heckmann K., Sievers J., Lydell B., Zammali Ch., Yuan X.-X., Duan X., Alzbutas R. [LEI], Lee G.-G., Karom J. A., Morozov V., Takasugi C., Jevremovic T.. Review and categorization of existing studies on the estimation of probabilistic failure metrics for Reactor Coolant Pressure Boundary piping and steam generator tubes in Nuclear Power Plants In: Progress in Nuclear Energy. Oxford: Elsevier, 2020, Vol. 118, 103105, p. 1-51. ISSN 0149-1970.


Iešmantas T. [LEI], Alzbutas R. [LEI]. Bayesian spatial reliability model for power transmission network lines In: Electric Power Systems Research. Elsevier, 2019, Vol. 173, p. 214-219. ISSN 0378-7796, eISSN 1873-2046.
Alzbutas R. [LEI], Voronov R. [LEI]. Probabilistic safety assessment and human reliability analysis for the Wendelstein 7-X fusion device In: Fusion Engineering and Design. Elsevier, 2019, Vol. 149, 11131811, p. 11. 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.
Alzbutas R. [LEI], Cronvall O., Cueto-Felgueroso C., Gunnars J., Lejon A., O´Regan P., Walker T., Simola K., Martin O., et al. ENIQ Framework Document for Risk-Informed In-Service Inspection In: ENIQ Report No. 51. Brussels: The NUGENIA Association, 2019, Vol. 2, No. 51, p. 1-31. ISBN 978-2-919313-21-1.


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.

Conference paper


Alzbutas R. [LEI], Vitkutė J.. Probabilistic uncertainty and sensitivity analysis for risk assessment of natural gas pipeline explosion In: Risk analysis: from perception to prediction: 6th society for risk analysis Europe (SRA-E) Nordic chapter conference, 5-6 November, 2020, Kaunas, Lithuania: abstracts. Kaunas: Kauno technologijos universitetas, 2020, p. 8-8..
Poghosyan S., Gilbertson A., Ferrante F., Siu N., Alzbutas R. [LEI], Siklossy T.. IAEA Project on aggregation of various risk contributors for nuclear facilities In: Proceedings of the 29th European Safety and Reliability Conference, ESREL 2019. Singapore: European Safety and Reliability Association. Published by Research Publishing, 2020, p. 3798-3805. SCOPUS . ISBN 978-981-11-2724-3.


Dundulis G. [LEI], Alzbutas R. [LEI]. Pipe rupture and inspection sensitivity analysis In: Proceedings of the 52th ESReDA Seminar, May 30-31, 2017, Lithuania. Kaunas: 2017, p. 108-116. ISBN 978-92-79-73870-8.
Alzbutas R. [LEI]. Risk informed inspection and decisions making In: Proceedings of the 52th ESReDA Seminar, May 30-31, 2017, Lithuania. Kaunas: 2017, p. 46-59. ISBN 978-92-79-73870-8.
Benabid R., Bouhlal A., Alzbutas R. [LEI], Kaliatka A. [LEI]. Level 1 probabilistic safety analysis of a typical research reactor In: Proceeding of African Conference on Research Reactor Utilization and Safety, 18-20 December, Accra, Ghana. GAEC and IAEA (International Atomic Energy Agency). Ghana: IAEA, 2017, p. 1-10..


Iešmantas T. [LEI], Alzbutas R. [LEI]. Maintenance of power systems considering time-dependent uncertainty In: Safety and Reliability: Methodology and Applications – Proceedings of the European safety and reliability conference ESREL 2014. Wroclaw, Poland, September 14-18, 2014. Nowakowski et al. (Eds) 2015 . London: Taylor & Francis Group, 2015, p. 1127-1131. ISBN 978-1-138-02681-0.
Iešmantas T. [LEI], Alzbutas R. [LEI]. Age-dependent uncertainty in energy network reliability assessment In: 25th European Safety and Reliability Conference (ESREL) . London: Taylor & Francis Group, 2015, p. 1959-1964. ISBN 978-1-138-02879-1.
Alzbutas R. [LEI], Voronov R. [LEI]. RAMI and PSA application for efficiency of fusion device In: 25th European Safety and Reliability Conference (ESREL) 2015 September 7 - 10. Zurich, Switzerland: Taylor & Francis Group, London, 2015, p. 287-295. ISBN 978-1-138-02879-1.
Iešmantas T. [LEI], Alzbutas R. [LEI]. Adjustment factors in Bayesian reliability assessment for demo fusion technology In: 12th Annual international conference of young scientists on energy issues (CYSENI 2015), Kaunas, Lithuania, May 27–28, 2015. Kaunas: Lietuvos energetikos institutas, 2015, p. 368-379. ISSN 1822-7554.

International projects

Seventh Framework Programme (FP7)


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


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



The successful deployment of advanced WCR technologies includes the development of design certification probabilistic safety assessment (PSA) studies that among other aspects must alsMore