Modeling of atmospheric dispersion and radiation dose for a hypothetical accident in radioisotope production facility

2021 ◽  
Vol 134 ◽  
pp. 103674
Author(s):  
Hesham Elkhatib ◽  
Mohammed A. Awad ◽  
Mahamed A. El-Samanoudy
Keyword(s):  
Radiation Dose ◽  
Atmospheric Dispersion ◽  
Production Facility ◽  
Radioisotope Production ◽  
Hypothetical Accident

Development of a Quality Manual for Radioisotope Production Plants

2014 ◽  
Author(s):  
Yasser E. Tawfik
Keyword(s):  
Quality Management ◽  
Product Quality ◽  
Management System ◽  
Quality Management System ◽  
Quality System ◽  
Atomic Energy ◽  
Production Plant ◽  
Production Facility ◽  
Radioisotope Production ◽  
Atomic Energy Authority

The purpose of issuing a quality manual for the radioisotope production plants is to define and describe the quality system implemented by the plant. It provides general procedures for all activities comprising the quality system, defines the authorities and responsibilities of all personnel affected by the system and provides a way to inform our customers of the specific controls that are in place at radioisotope production plants to assure continued product quality. Such a quality manual is regularly updated to depict the quality management system implemented by radioisotope production plant as accurately as possible. Example of this type of quality manual is developed for the radioisotope production facility (RPF) located in ETRR-2 Complex site – Egyptian Atomic Energy Authority – Inshas-EGYPT.

scholarly journals Radiation Dose Calculations for a Hypothetical Accident in Xianning Nuclear Power Plant

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Bo Cao ◽  
Junxiao Zheng ◽  
Yixue Chen
Keyword(s):  
Radiation Dose ◽  
Nuclear Power ◽  
Atmospheric Dispersion ◽  
Harmful Effect ◽  
Atmospheric Stability ◽  
Dispersion Modeling ◽  
Dose Calculations ◽  
Air Concentration ◽  
The Public ◽  
Ground Deposition

Atmospheric dispersion modeling and radiation dose calculations have been performed for a hypothetical AP1000 SGTR accident by HotSpot code 3.03. TEDE, the respiratory time-integrated air concentration, and the ground deposition are calculated for various atmospheric stability classes, Pasquill stability categories A–F with site-specific averaged meteorological conditions. The results indicate that the maximum plume centerline ground deposition value of1.2E+2 kBq/m2occurred at about 1.4 km and the maximum TEDE value of1.41E-05 Sv occurred at 1.4 km from the reactor. It is still far below the annual regulatory limits of 1 mSv for the public as set in IAEA Safety Report Series number 115. The released radionuclides might be transported to long distances but will not have any harmful effect on the public.

scholarly journals Medical Therapy of Patients Contaminated with Radioactive Cesium or Iodine

Biomolecules ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 856 ◽  
Author(s):  
Jan Aaseth ◽  
Valeria Marina Nurchi ◽  
Ole Andersen
Keyword(s):  
Radiation Dose ◽  
Atmospheric Dispersion ◽  
The Body ◽  
Radioactive Material ◽  
Radioactive Cesium ◽  
Clinical Consequences ◽  
Short And Long Term ◽  
Radiation Medicine

Follow-up studies after the Chernobyl and Fukushima accidents have shown that 137Cs and 131I made up the major amount of harmful contaminants in the atmospheric dispersion and fallout. Other potential sources for such radionuclide exposure may be terrorist attacks, e.g., via contamination of drinking water reservoirs. A primary purpose of radionuclide mobilization is to minimize the radiation dose. Rapid initiation of treatment of poisoned patients is imperative after a contaminating event. Internal contamination with radioactive material can expose patients to prolonged radiation, thus leading to short- and long-term clinical consequences. After the patient’s emergency conditions are addressed, the treating physicians and assisting experts should assess the amount of radioactive material that has been internalized. This evaluation should include estimation of the radiation dose that is delivered and the specific radionuclides inside the body. These complex assessments warrant the reliance on a multidisciplinary approach that incorporates regional experts in radiation medicine and emergencies. Regional hospitals should have elaborated strategies for the handling of radiation emergencies. If radioactive cesium is a significant pollutant, Prussian blue is the approved antidote for internal detoxification. Upon risks of radioiodine exposure, prophylactic or immediate treatment with potassium iodide tablets is recommended. Chelators developed from calcium salts have been studied for gastrointestinal trapping and enhanced mobilization after strontium exposure.

Additional radiation dose due to atmospheric dispersion of tritium evaporated from a hypothetical reservoir

2021 ◽  
Vol 167 ◽  
pp. 109475
Author(s):  
Baojie Nie ◽  
Jinmin Yang ◽  
Yuan Yuan ◽  
Fengchen Li
Keyword(s):  
Radiation Dose ◽  
Atmospheric Dispersion ◽  
Additional Radiation

scholarly journals Uncertainty propagation in atmospheric dispersion models for radiological emergencies in the pre- and early release phase: summary of case studies

2020 ◽  
Vol 55 ◽  
pp. S57-S68 ◽  
Author(s):  
I. Korsakissok ◽  
R. Périllat ◽  
S. Andronopoulos ◽  
P. Bedwell ◽  
E. Berge ◽  
...  
Keyword(s):  
Case Studies ◽  
Uncertainty Propagation ◽  
Atmospheric Dispersion ◽  
Health Impact ◽  
Fukushima Accident ◽  
Atmospheric Dispersion Models ◽  
Hypothetical Accident ◽  
Release Data ◽  
Accident Scenarios ◽  
Input Uncertainties

In the framework of the European project CONFIDENCE, Work Package 1 (WP1) focused on the uncertainties in the pre- and early phase of a radiological emergency, when environmental observations are not available and the assessment of the environmental and health impact of the accident largely relies on atmospheric dispersion modelling. The latter is subject to large uncertainties coming from, in particular, meteorological and release data. In WP1, several case studies were identified, including hypothetical accident scenarios in Europe and the Fukushima accident, for which participants propagated input uncertainties through their atmospheric dispersion and subsequent dose models. This resulted in several ensembles of results (consisting of tens to hundreds of simulations) that were compared to each other and to radiological observations (in the Fukushima case). These ensembles were analysed in order to answer questions such as: among meteorology, source term and model-related uncertainties, which are the predominant ones? Are uncertainty assessments very different between the participants and can this inter-ensemble variability be explained? What are the optimal ways of characterizing and presenting the uncertainties? Is the ensemble modelling sufficient to encompass the observations, or are there sources of uncertainty not (sufficiently) taken into account? This paper describes the case studies of WP1 and presents some illustrations of the results, with a summary of the main findings.

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