Ernestas Narkūnas

2026

• Gintautas Poškas, Asta Narkūnienė, Ernestas Narkūnas. Impact of Hyperparameters on Surrogate Model Performance: Calcite Dissolution Under Geological Disposal Conditions , Applied Sciences — DOI: 10.3390/app16094252

2025

• Ernestas Narkūnas, Povilas Poškas, Artūras Šmaižys, Gintautas Poškas. Characterization of the Ignalina NPP RBMK-1500 reactors graphite: Review and summary of current situation and recent developments in respect to the reactor core dismantlement , Progress in Nuclear Energy — DOI: 10.1016/j.pnucene.2025.105805

2022

• Ernestas Narkūnas, Artūras Šmaižys, Povilas Poškas, Audrius Šimonis, Valerij Naumov, Dmitrij Ekaterinichev. Gamma Radiation Shielding Assessment Using Stochastic, Deterministic, and Experimental Methods for RBMK-1500 SNF Storage Cask , Nuclear Technology — DOI: 10.1080/00295450.2022.2092367
• Valdas Ragaišis, Tadas Kaliatka, Povilas Poškas, Algirdas Kaliatka, Artūras Šmaižys, Remigijus Janulionis, Ernestas Narkūnas, Arūnas Sirvydas, Egidijus Babilas, Sigitas Rimkevičius. A proposed approach for the evaluation of consequences of a large aircraft crash accident at an RBMK type reactor site during decommissioning , Progress in Nuclear Energy — DOI: 10.1016/j.pnucene.2022.104135

2021

• Arturas Smaizys, Ernestas Narkunas, Gintautas Poskas, Valerij Naumov, Dmitrij Ekaterinichev. Evaluation of the shielding properties of a new increased capacity storage cask for RBMK-1500 used fuel , Progress in Nuclear Energy — DOI: 10.1016/j.pnucene.2021.103986
• Arturas Smaizys, Ernestas Narkunas, Gintautas Poskas, Povilas Poskas. Comparison of Gamma and Neutron Dose Rate Variations with Time for Cast Iron and Metal–Concrete Casks Used for RBMK-1500 Spent Fuel Storage , Applied Sciences — DOI: 10.3390/app11167362
• Narkūnas, E., Šmaižys, A., Poškas, P., Naumov, V., Ekaterinichev, D.. Neutron dose rate analysis of the new CONSTOR® storage cask for the RBMK-1500 spent nuclear fuel , Nuclear Engineering and Technology — DOI: 10.1016/j.net.2020.11.022

2019

• A. Smaizys, E. Narkunas, V. Rudychev, Y. Rudychev. Analysis of Some Computer Codes Used for Evaluation of Spent Nuclear Fuel Radiation Parameters , Nuclear and Radiation Safety — DOI: 10.32918/nrs.2019.3(83).05
• Narkunas, E., Poskas, G., Smaizys, A.. Impact of shield elements on the WWER-440 reactor pressure vessel activation , Annals of Nuclear Energy — DOI: 10.1016/j.anucene.2019.03.008

2018

• Ernestas Narkunas, Povilas Poskas, Arturas Smaizys, Simon Norris. Estimation of the inventory of 14C and other key radionuclides in irradiated RBMK-1500 graphite based on limited measurements and full 3D core modeling , Radiocarbon — DOI: 10.1017/RDC.2018.122

2017

• Šmaižys, A., Poškas, P., Narkūnas, E.. Evaluation of dose rate variation during very long term storage of RBMK-1500 reactor used fuel , Annals of Nuclear Energy — DOI: 10.1016/j.anucene.2017.03.050

2016

• Ragaišis, V., Poškas, P., Šimonis, V., Narkunas, E.. Updating of the public dose assessment approach for decommissioning related releases from the Ignalina NPP , Annals of Nuclear Energy — DOI: 10.1016/j.anucene.2016.02.028
• Narkunas, E., Smaizys, A., Poskas, P., Ragaisis, V.. Modelling of RBMK-1500 SNF storage casks activation during very long term storage , Applied Radiation and Isotopes — DOI: 10.1016/j.apradiso.2016.06.015
• Ernestas Narkunas, Arturas Smaizys, Povilas Poskas, Gytis Bartkus. Modelling of the spatial distribution of the induced activities in the RBMK-1500 reactor graphite blocks and rings/sleeves , Progress in Nuclear Energy — DOI: 10.1016/j.pnucene.2016.05.005

2014

• Smaizys, A., Poskas, P., Narkunas, E.. Modelling of rbmk spent nuclear fuel characteristics , International Conference on Nuclear Engineering, Proceedings, ICONE — DOI: 10.1115/ICONE22-31005
• A. Šmaižys, P. Poškas, E. Narkūnas, G. Bartkus. Numerical modelling of radionuclide inventory for RBMK irradiated nuclear fuel , Nuclear Engineering and Design — DOI: 10.1016/j.nucengdes.2014.06.014

2010

• Šmaižys, A., Poškas, P., Narkunas, E.. Evaluation of nuclear and radiation characteristics of steel disposal canister for RBMK-1500 spent nuclear fuel,RBMK-1500 panaudoto branduolinio kuro plieninio laidojimo konteinerio branduoliniu ir radiaciniu charakteristiku skaitinis vertinimas , Energetika
• Narkunas, E., Smaizys, A., Poskas, P., Kilda, R.. Assessment of different mechanisms of C-14 production in irradiated graphite of RBMK-1500 reactors , Kerntechnik — DOI: 10.3139/124.110083

2009

• Narkunas, E., Smaizys, A., Poskas, P.. Neutron activation in the metal structures of an RBMK-1500 reactor , Nuclear Technology — DOI: 10.13182/NT09-A9239
• Narkunas, E., Šmaižys, A., Poškas, P.. Numerical modelling of neutron activation processes in reactor RBMK-1500 structural elements: 3. Modelling of neutron activation proceses in fuel chanels employing modeled Neutron fluxes,Reaktoriaus RBMK-1500 konstrukcinių elementų neutroninės aktyvacijos skaitinis vertinimas: 3. Kuro kanalų neutroninės aktyvacijos vertinimas naudojant sumodeliuotus neutronų srautus , Energetika

2008

• Narkunas, E., Šmaižys, A., Poškas, P.. Numerical modelling of neutron activation processes in the reactor RBMK-1500 structural elements 2. Numerical modelling of neutron activation processes in shielding and support plates,Reaktoriaus RBMK-1500 konstrukciniu̧ elementu̧ neutroninės aktyvacijos skaitinis vertinimas 2. Atraminiu̧ ir apsauginiu̧ plieno plokščiu̧ neutroninės aktyvacijos skaitinis vertinimas , Energetika

2005

• Smaizys, A., Narkunas, E., Poskas, P.. Modelling of activation processes for GR-280 graphite at Ignalina NPP , Radiation Protection Dosimetry — DOI: 10.1093/rpd/nci118