Valdas Ragaišis

Nuclear Engineering Laboratory (14)
Senior research associate
Room number:
Phone number:


Scientific article


Miliauskas G., Puida E., Poškas R. [LEI], Ragaišis V. [LEI], Paukštaitis L., Jouhara H., Mingilaitė L.. Experimental investigations of water droplet transient phase changes in flue gas flow in the range of temperatures characteristic of condensing economizer technologies In: Energy. Oxford: Elsevier, 2022, Vol. 256, 124643, p. 1-11. ISSN 0360-5442, eISSN 1873-6785.
Narkūnienė A. [LEI], Justinavičius D. [LEI], Poškas P. [LEI], Grigaliūnienė D. [LEI], Ragaišis V. [LEI]. The Modeling of Laboratory Experiments on Granular MX‐80 Bentonite with COMSOL Multiphysics In: Minerals. Basel: MDPI, 2022, Vol. 12, No. 3, 277, p. 1-20. ISSN 2075-163X.
Ragaišis V. [LEI], Kaliatka T. [LEI], Poškas P. [LEI], Kaliatka A. [LEI], Šmaižys A. [LEI], Janulionis R. [LEI], Narkūnas E. [LEI], Sirvydas A. [LEI], Babilas E. [LEI], Rimkevičius S. [LEI]. A proposed approach for the evaluation of consequences of a large aircraft crash accident at an RBMK type reactor site during decommissioning In: Progress in Nuclear Energy. Oxford: Elsevier, 2022, Vol. 145, 104135, p. 1-15. ISSN 0149-1970, eISSN 1878-4224.


Ragaišis V. [LEI], Poškas P. [LEI], Kilda R. [LEI], Bartkus G. [LEI]. A review of uncertainties in the assessment of the radiological impact of liquid releases to the Ignalina NPP cooling pond lake Drūkšiai In: Annals of Nuclear Energy. Oxford: Elsevier, 2021, Vol. 157, 108228, p. 1-10. ISSN 0306-4549.


Ragaišis V. [LEI], Poškas P. [LEI], Šimonis V. [LEI], Narkūnas E. [LEI]. Updating of the public dose assessment approach for decommissioning related releases from the Ignalina NPP In: Annals of Nuclear Energy. Oxford, England: Elsevier, 2016, Vol. 94, p. 93-101. ISSN 0306-4549.
Narkūnas E. [LEI], Šmaižys A. [LEI], Poškas P. [LEI], Ragaišis V. [LEI]. Modelling of RBMK-1500 SNF storage casks activation during very long term storage In: Applied Radiation and Isotopes. Netherlands: Elsevier, 2016, Vol. 115, p. 100-108. ISSN 0969-8043.


Ragaišis V. [LEI], Ahmad S.. Methodology for safety assessment applied to predisposal waste management In: Methodology for safety assessment applied to predisposal waste management. Vienna: International Atomic Energy Agency, 2015, p. 1-47. ISSN 1011-4289 ISBN 978-92-0-109215-1.
Ragaišis V. [LEI], Poškas P. [LEI], Šimonis A. [LEI]. Methodology for the scoping assessment of radioactive releases during dismantling of RBMK-1500 reactor systems with low-level contamination In: Annals of Nuclear Energy. Oxford: Elsevier, 2015, Vol. 75, p. 193-198. ISSN 0306-4549.

International projects

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