Gintautas Poškas

Nuclear Engineering Laboratory (14)
Senior research associate
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Scientific article



Winkler R., de las Heras L. A., Pancotti F., Banford A. W., Van den Dungen K., Szoke R., Poškas G. [LEI], Bohnstedt A., Chaudhry M. J. E.. SHARE: Stakeholder based analysis of research for decommissioning In: EPJ Nuclear Sciences & Technologies. Les Ulis Cedex a: EDP Sciences, 2023, Vol. 9, No. 10, p. 1-15. ISSN 2491-9292.


Mazzi M., Chebac R., Campi F., Ricotti M., Poškas G. [LEI], Derudi M., Porta A.. Preliminary Study on Oxidation of Nuclear Grade Graphite In: Chemical Engineering Transactions. PALO ALTO: AIDIC, 2022, Vol. 91, p. 427-432. Scopus . ISSN 2283-9216 ISBN 978-88-95608-89-1.


Šmaižys A. [LEI], Narkūnas E. [LEI], Poškas G. [LEI], Naumov V., Ekaterinichev D.. Evaluation of the shielding properties of a new increased capacity storage cask for RBMK-1500 used fuel In: Progress in Nuclear Energy. Oxford: Elsevier, 2021, Vol. 141, 103986, p. 1-11. ISSN 0149-1970, eISSN 1878-4224.


Poškas G. [LEI], Poškas P. [LEI], Šimonis A. [LEI]. Assessment of the Radioactive Contamination of the RBMK-1500 Reactor’s Steam Pipelines and High Pressure Rings In: Science and Technology of Nuclear Installations. London: Hindawi, 2019, p. 1-8. ISSN 1687-6075, eISSN 1687-6083.
Narkūnas E. [LEI], Poškas G. [LEI], Šmaižys A. [LEI]. Impact of shield elements on the WWER-440 reactor pressure vessel activation In: Annals of Nuclear Energy. Oxford: Elsevier, 2019, Vol. 130, p. 394-401. ISSN 0306-4549.


Šimonis A. [LEI], Poškas G. [LEI], Poškas P. [LEI]. Estimation of the radiation doses during the dismantling of the equipment in Building 117/1 at the Ignalina NPP In: Annals of Nuclear Energy. Oxford, England: Elsevier, 2018, 121, p. 29-35. ISSN 0306-4549.


Poškas G. [LEI], Zujus R. [LEI], Poškas P. [LEI]. Analysis of the radiological contamination of the RBMK-1500 reactor low salted water system In: Progress in Nuclear Energy. Oxford: Elsevier, 2015, Vol. 85, p. 707-712. ISSN 0149-1970.

Conference paper


Šimonis A. [LEI], Poškas G. [LEI], Poškas P. [LEI], Klevinskas G.. Decommissioning of radon type radioactive waste storage facility in Lithuania In: Radioactive Waste Management Solutions for a Sustainable Future Proceedings of an International Conference Vienna, Austria, 1–5 November 2021. Vienna: IAEA (International Atomic Energy Agency), 2023, UDC 621.039.7 | STI/PUB/2077, p. 1-8. ISBN 978-92-0-155323-2.


Šimonis A. [LEI], Poškas G. [LEI], Poškas P. [LEI], Klevinskas G.. Decommissioning of Radon Type Radioactive Waste Storage Facility in Lithuania In: International Conference on Radioactive Waste Management: Solutions for a Sustainable Future (IAEA), November 1-5, 2021, Vienna, Austria. Vienna: IAEA, 2021, CN-294, p. 96-96..


Poškas G. [LEI]. Radiologinio užteršimo vertinimas RBMK-1500 reaktoriaus kontrolės ir apsaugos kanaluose In: Šilumos energetika ir technologijos-2016: konferencijos pranešimų medžiaga, Kauno technologijos universitetas, 2016 sausio 28-29. Kaunas: Lietuvos energetikos institutas, 2016, p. 98-103. ISSN 2335-2485.


Poškas G. [LEI]. Sistemų komponentų paviršinio radioaktyviojo užterštumo neapibrėžtumo vertinimo aspektai In: Šilumos energetika ir technologijos - 2015: konferencijos pranešimų medžiaga, Kauno technologijos universitetas, 2015 sausio 29-30 . Kaunas: Kauno technologijos universitetas, 2015, p. 120-124. ISSN 2335-2485.
Poškas G. [LEI]. Derivation of the mass factors for decommissioning cost estimation of low contaminated auxiliary systems. In: International Conference ECED 2013 – Eastern and Central European Decommissioning June 23 - 25, 2015. . Trnava, Slovakia: 2015, p. 1-9. ISBN 978-80-971498-5-7.

International projects

Horizon Europe


The project aims to establish and clarify the benefits and added value of more aligned and harmonised regulations and standards for prioritised topics related to decommissioning and iMore

Horizon 2020


The decommissioning of closed graphite moderated nuclear reactors worldwide is still in its early stages with the majority of reactors in “safe store” condition. For these reactors, tMore

EURAD project logo

Following decades of RD&D in support of the safe management and disposal of radioactive waste, and building on the preparatory work of the recent EC JOPRAD project, a European JoiMore

SHARE project logo

According to the projections based on likely remaining life-times of the World’s legacy nuclear fleet, the workload and budgets to be dedicated for nuclear decommissioning is going toMore


Safe management of radioactive waste is challenging to waste producers and waste management organisations. Deployment of thermal treatment in an optimised waste management lifecycle cMore


The overall objective of the project is to develop and test the tools necessary for the assessment of the hydro-mechanical evolution of an installed bentonite barrier and its resultinMore


The coordination action SITEX-II aims at implementing in practice the activities along with the interaction modes issued by the FP7 program SITEX project (2012-2013), in view of develMore

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


SITEX aims at identifying the efficient means that should be developed through the establisment of a sustainable expertise function network within a European framework with the view tMore


Gas-Cooled Reactors (GCR), RBMK and some Material Test Reactors (MTR) make use of graphite as moderator of the fuel, structures of the core and/or thermal columns. During operation, tMore

Projects in Lithuania

EU Structural Funds

ES fondų investicijos 2014-2020 m.

On 7 February 2018, the Lithuanian Energy Institute (LEI) and the public institution Central Project Management Agency (CPVA) signed a contract for the implementation of the projeMore