Atmospheric dispersion modeling for an accidental release from the Pakistan Research Reactor-1 (PARR-1)

Impact of Strontium and Krypton Release from Ghana’s MNSR following a Conjectural Accident Scenario

“…Frequent shifts of wind direction and changes in stability and wind speed make it quite difficult to predict the area where the plume will move [20]. In a Gaussian dose model, a Gaussian distribution is assumed within the plume, and this results in complicated expression for the dose rate containing triple integral over three coordinate directions [3,21]:…”

“…It has therefore become significantly dangerous with regard to potential use by state and nonstate actors with limited nuclear weapon expertise. In addition, due to the fact that HEU has a 20 percent or higher concentration of Uranium-235 or is a fissile material of 80 percent or more Uranium-235, it has been considered as weapons-grade [3]. e major issue associated with civilian research facilities is usually the lack of sufficient protection from the security point of view.…”

“…Another vital issue when it comes to safety assessment of nuclear reactors is the dealing of dispersion of released radionuclides during accident situation, whether under normal or under abnormal operation conditions. As such, modeling of atmospheric dispersion has been considered as the first step for such assessments [3]. Although there has been improvement in atmospheric dispersion modeling computation power, not all atmospheric dispersion models are applicable to situations associated with radionuclides release [8].…”

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

“…Radiation dose calculation for hypothetical accident or possible radionuclides release from a nuclear facility is very important as far as human health and safety are concerned [1][2][3]. The radionuclides from accidental releases producing the dose equivalent may be external or internal to the body.…”

Ground deposition assessment of radionuclides following a hypothetical release from Ghana Research Reactor-1 (GHARR-1) using atmospheric dispersion model

“…The environmental assessment reported is clearly stated in the Safety Analysis Report (SAR) of GHARR-1 (Akaho et al, 2003). Atmospheric dispersion modeling and radionuclide release dose calculations for hypothetical accident scenario are important for background radiation data and licensing requirements for the selection of a suitable site prior to nuclear activities, such as a nuclear reactor facility (Raza and Iqbal, 2005). During radioactivity emission as a result of accident from a nuclear facility, there has been several ways of measuring released radionuclides concentration using instrumental techniques.…”