Tomas Iešmantas

Laboratory of Nuclear Installation Safety (17)
Research associate
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The person is no longer employed at the Institute


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.


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.


Dongiovanni D. N., Iešmantas T. [LEI], Gavila P., Pinna T.. Exploiting information of fusion component tests for failure rate estimation:Divertor Inner Vertical Target component study case In: Fusion Engineering and Design. Lausanne, Switzerland: Elsevier, 2018, Vol. 136, p. 1629-1633. ISSN 0920-3796.


Iešmantas T. [LEI], Alzbutas R. [LEI]. Bayesian analysis of heterogeneous reliability data for vulnerability assessment In: Safety and Reliability. London: Taylor&Francis, 2016, Vol. 36, Iss. 1, p. 13-23. ISSN 2469-4126.
Ušpuras E. [LEI], Rimkevičius S. [LEI], Urbonavičius E. [LEI], Kaliatka A. [LEI], Dundulis G. [LEI], Alzbutas R. [LEI], Stankūnas G. [LEI], Vaišnoras M. [LEI], Vileiniškis V. [LEI], Povilaitis M. [LEI], Kaliatka T. [LEI], Janulionis R. [LEI], Karalevičius R. [LEI], Voronov R. [LEI], Iešmantas T. [LEI], Kačegavičius T. [LEI]. Branduolių sintezės tyrimai Lietuvos energetikos institute In: Energetika. Vilnius: Lietuvos mokslų akademija, 2016, T. 62, Nr. 3, p. 102-123. ISSN 0235-7208.
Iešmantas T. [LEI], Alzbutas R. [LEI]. Bayesian reliability of gas network under varying incident registration criteria In: Quality and reliability engineering international. Hoboken, NJ: John Wiley & Sons, 2016, Vol. 32, Iss. 5, p. 1903-1912. ISSN 0748-8017.
Dongiovanni D. N., Iešmantas T. [LEI]. Failure rate modeling using fault tree analysis and Bayesian network:DEMO pulsed operation turbine study cas In: Fusion Engineering and Design. Nyderlandai: Elsevier, 2016, Vol. 109-111, Part A, p. 613-617. ISSN 0920-3796.


Iešmantas T. [LEI], Alzbutas R. [LEI]. Hierarchical Bayesian reliability assessment of energy networks In: Lietuvos matematikos rinkinys. Vilnius: Lietuvos matematikų draugija, 2015, Ser. A, T. 56, p. 18-23. ISSN 0132-2818.


Alzbutas R. [LEI], Iešmantas T. [LEI], Povilaitis M. [LEI]. Risk and uncertainty analysis of gas pipeline failure and gas combustion consequence In: Stochastic environmental research and risk assessment. Berlin: Springer, 2014, Vol. 28, No. 6, p. 1431-1446. ISSN 1436-3240, eISSN 1436-3259.

Conference paper


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.
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

Horizon 2020


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 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 project aims to enhance existing product and process design systems with features that will enable engineers to: design single discrete manufacturing processes in the optimalMore


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