Using Hotspot for Estimating Radiation Dose Following a Postulated SMR Accident

Abstract

The evaluation of radiation dose following a postulated nuclear reactor accident is typically performed with detailed simulations, using a code such as MACCS2. This paper proposes the use of the HotSpot Health Physics code, which is an accessible and convenient tool to estimate the radiation dose, given the radioactivity of various nuclides. HotSpot was used to estimate the radiation dose, at different distances, associated with the activity of radionuclides resulting from a postulated reactor accident. The results were verified against published data for a CANDU reactor. Following verification, HotSpot will be used for approximating the exclusion zone after a postulated severe accident for a Small Modular Reactor.