RadChem 2018

Session

RER 5

RER.5

18 May 2018, 08:30

Casino Conference Centre

Conveners

RER 5

• Jerzy-Wojciech Mietelski (The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences (IFJ PAN))
• Silvia Dulanská (Department of Nuclear Chemistry,Faculty of Natural Sciences, Comenius University in Bratislava, Slovakia 842 15)

435. The development of a digital gamma-gamma coincidence/anticoincidence spectrometer and its applications to monitor low-level atmospheric 22Na/7Be activity ratios in Resolute, Canada

Dr Weihua Zhang (Radiation Protection Bureau of Health Canada)

18/05/2018, 08:30

Radionuclides in the Environment, Radioecology

Verbal

7Be (half-life, 53.2 d) and 22Na (half-life, 2.6 a) are naturally occurring radionuclides of cosmogenic origin. Intrusions of stratospheric air masses into the troposphere followed by dry or wet deposition are the main processes transferring 7Be and 22Na to the earth’s surface. These two atmospheric cosmogenic nuclides are simultaneously generated in the upper atmosphere and have similar...

877. Challenges for environmental restoration of the first uranium mining and milling in Brazil

Prof. Elisabete De Nadai Fernandes (Nuclear Energy Center for Agriculture, University of São Paulo)

18/05/2018, 08:45

Radionuclides in the Environment, Radioecology

Verbal

The Osamu Utsumi Mine located at the Poços de Caldas plateau, Minas Gerais state, Brazil, was the first uranium mine exploited in the country, in the Poços de Caldas Mining-Industrial Complex (CIPC) of the Nuclear Industries of Brazil (INB). The operational phase for extracting and processing uranium lasted from 1982 to 1995, when activities were interrupted initiating the decommissioning...

694. Impact of nuclear power plants on radiocarbon in the atmosphere and biosphere of Slovakia

Ivan Kontuľ (Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Slovakia)

18/05/2018, 09:00

Radionuclides in the Environment, Radioecology

Verbal

There have been two nuclear power plants (NPPs) in operation in Slovakia - Jaslovské Bohunice and Mochovce. Radiocarbon as one of the most important radionuclides for delivering of long-term radiation doses to the public has been regularly monitored in the NPP surrounding areas as well as in the city of Bratislava. In the vicinity of both NPPs atmospheric carbon dioxide has been sampled on a...

710. Speciation of Uranium: Validation of a database by modelling techniques and comparative experiments

Vivien Schulte

18/05/2018, 09:15

Radionuclides in the Environment, Radioecology

Verbal

Uranium mining legacies and enhanced radioactivity in usable groundwater and surface water resources cause environmental hazards. To predict radionuclide migration, for installing effective water purification technology and as decision basis for remediation strategies of the contaminated sites a profound knowledge of uranium speciation in these waters is essential. Predictive modelling of...