Radiological consequence assessment for hypothetical nuclear explosion scenario using HotSpot

In this study the influence of atmospheric conditions, release height and particle size are studied on radiological impact due to a hypothetical 15 KT nuclear explosion using HotSpot model. Simulations show that among different parameters, burst produces highest total effective dose (TED). It is found maximum TED about 4 orders higher for surface compared elevated explosions. The range acute doses (TED >0.25 Sv) extends up 10 km neutral stable conditions ground releases 5 unstable 600 m release. has been city type terrain reduces by 40% 80% in respectively flat terrain. with sizes indicate shine twice 100% RF particles 50% after 0.5 all conditions. from 6 both sizes. Larger lead roughly 8 times deposited activity within A D For highly sensitive parameter, almost 40 against RF. inversion suggest an leads enhanced especially condition (A, B, C classes) 2 factors at 1 order relative no sensitivity capping layer lower releases. presence rain (10 mm.h−1) groundshine ∼1 scenario. washout relatively high first where least 3 more raining condition.