Number of the records: 1
Potential Radioactive Hot Spots Induced by Radiation Accident Being Underway of Atypical Low Wind Meteorological Episodes
- 1.
SYSNO ASEP 0524069 Document Type V - Research Report R&D Document Type The record was not marked in the RIV Title Potential Radioactive Hot Spots Induced by Radiation Accident Being Underway of Atypical Low Wind Meteorological Episodes Author(s) Pecha, Petr (UTIA-B) RID, ORCID
Tichý, Ondřej (UTIA-B) RID, ORCID
Pechová, E. (CZ)Number of authors 3 Issue data Praha: ÚTIA, 2020 Series Research Report Series number 2382 Number of pages 23 s. Publication form Print - P Language eng - English Country CZ - Czech Republic Keywords radioactivity ; atmospheric dissemination ; deposition hot-spots Subject RIV AQ - Safety, Health Protection, Human - Machine OECD category Occupational health Institutional support UTIA-B - RVO:67985556 Annotation Hypothetical radioactivity release with potentially high variability of the source strength is examined. The interactions of the radioactive cloud with surface and atmospheric precipitation are studied and possible adverse consequences on the environment are estimated. The worst-case scenario is devised in two stages starting with a calm meteorological situation succeeded by wind. At the first stage, the discharges of radionuclides into the motionless ambient atmosphere are assumed. During several hours of this calm meteorological situation, a relatively significant level of radioactivity can be accumulated around the source. At the second stage, the calm is assumed to terminate and convective movement of the air immediately starts. The pack of accumulated radioactivity in the form of multiple Gaussian puffs is drifted by wind and pollution is disseminated over the terrain. The results demonstrate the significant transport of radioactivity even behind the protective zone of a nuclear facility (up to between 15 and 20 km). In the case of rain, the aerosols are heavily washed out and dangerous hot spots of the deposited radioactivity can surprisingly emerge even far from the original source of the pollution. Workplace Institute of Information Theory and Automation Contact Markéta Votavová, votavova@utia.cas.cz, Tel.: 266 052 201. Year of Publishing 2021
Number of the records: 1