Progress of radioactive waste management in Lithuania

Poškas, Povilas; Adomaitis, J. E.; Ragaisis, V.; Šimonis, Vytautas; Smaizys, Arturas; Kilda, Raimondas; Grigaliuniene, Dalia

doi:10.1016/j.pnucene.2011.09.008

Cited by 17 publications

(6 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the beginning of the last century, the so-called term nuclear radiation And research continued until the German scientist (Nodak) was able to identify the products of the reaction (the uranium nucleus is split into two medium-mass nuclei), which is expressed by nuclear fission, which studies have confirmed with the passage of time, and this fission produces huge amounts of energy as a result of the nuclear reaction [7,8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The role of scientific research on nuclear radiation waste management and preserving environment

et al. 2021

View full text Add to dashboard Cite

On the level of this article, we deal with nuclear radiation (and their residues), which is defined as a physical phenomenon and strong atomic activity that occurs in unstable atoms of elements. We are interested in studying radiation as the emission or diffusion of energy into space in the form of electromagnetic waves or particles. The scientist Fermi (1934 AD) is among the first to present scientific research in this field. Radioisotopes are considered one of the most prominent discoveries of modern science and based on the importance of the topic, scientists and researchers searched for methods and techniques to facilitate the implementation of practical applications for radiation measurement, and among those methods a specialized program was used to simulate radiation dose (digital simulation in a computer through the use of an imaginary model of the radiometric process with technology Monte Carlo using code (Geant 4). We have also highlighted the views of researchers and specialists in the area of disposal of radioactive waste, relying on a field study and a comparison of some of the currently adopted techniques to get rid of the negative consequences that each unreasonable (reckless) management and measure of this radioactive waste may have Among the most prominent results we have reached is highlighting the weakness of dealing with this topic and not giving it the right to research and scientific achievements carried out by researchers, which increases the complexity of the situation and from which it is difficult to control the problem in the future.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Figure No (8),. expresses the percentage worthy of scientific research aimed at preserving the environment and the globe.…”

mentioning

confidence: 99%

The role of scientific research on nuclear radiation waste management and preserving environment

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Graphite in the RBMK-1500 type reactors was used as a neutron moderator and reflector. As a result of Ignalina NPP operation, about 3800 t of irradiated graphite (i-graphite) was generated (Poskas et al 2012). One of the key radionuclides in the i-graphite is 14 C. Its long half-life (5730 yr) and the role in biological processes require appropriate treatment and disposal of i-graphite waste.…”

Section: Introductionmentioning

confidence: 99%

Preliminary investigation of¹⁴C migration from RBMK-1500 reactor graphite disposed of in a potential geological repository in crystalline rocks in Lithuania

et al. 2018

View full text Add to dashboard Cite

There are two units with RBMK-1500 type reactors at the Ignalina Nuclear Power Plant (Ignalina NPP) in Lithuania where graphite was used as a neutron moderator and reflector. These reactors are now being decommissioned, and Lithuania has to find a solution for safe irradiated graphite disposal. It cannot be disposed of in a near surface repository due to large amounts of 14C (radiocarbon, carbon-14); thus, a deep geological repository (DGR) is analyzed as an option. This study had the aim to evaluate 14C migration from the RBMK-1500 irradiated graphite disposed of in a potential DGR in crystalline rocks taking into account the outcomes of the research performed under the collaborative European project CAST (CArbon-14 Source Term) and to identify the potential to reduce the conservatism in the assumptions that was introduced in the lack of data and led in the overestimated 14C migration. The information gathered during the CAST project was used to model 14C transport in the near field by the water pathway and to perform uncertainty analysis. The study demonstrated that more realistic assumptions could reduce the estimated 14C flux from the near field by approximately one order of magnitude in comparison with the previous estimations based on very conservative assumptions.

show abstract

“…Currently, based on the already defined waste predisposal management routes, an interim storage will be required for the irradiated Ignalina NPP graphite storage until the decision on the final waste management technology will be taken [Poskas et al, 2012].…”

Section: Introductionmentioning

confidence: 99%

Modelling of the spatial distribution of the induced activities in the RBMK-1500 reactor graphite blocks and rings/sleeves

Narkunas

Smaizys

Poškas

et al. 2016

Progress in Nuclear Energy

View full text Add to dashboard Cite

Progress of radioactive waste management in Lithuania

Cited by 17 publications

References 1 publication

The role of scientific research on nuclear radiation waste management and preserving environment

The role of scientific research on nuclear radiation waste management and preserving environment

Preliminary investigation of¹⁴C migration from RBMK-1500 reactor graphite disposed of in a potential geological repository in crystalline rocks in Lithuania

Modelling of the spatial distribution of the induced activities in the RBMK-1500 reactor graphite blocks and rings/sleeves

Contact Info

Product

Resources

About

Progress of radioactive waste management in Lithuania

Cited by 17 publications

References 1 publication

The role of scientific research on nuclear radiation waste management and preserving environment

The role of scientific research on nuclear radiation waste management and preserving environment

Preliminary investigation of14C migration from RBMK-1500 reactor graphite disposed of in a potential geological repository in crystalline rocks in Lithuania

Modelling of the spatial distribution of the induced activities in the RBMK-1500 reactor graphite blocks and rings/sleeves

Contact Info

Product

Resources

About

Preliminary investigation of¹⁴C migration from RBMK-1500 reactor graphite disposed of in a potential geological repository in crystalline rocks in Lithuania