Fig. 1From: Black rain in Hiroshima: a critique to the Life Span Study of A-bomb survivors, basis of the linear no-threshold modelUda map: a, rain starting time after detonation, wind front (pink dashed line), and whirlwinds (triple dots); b, rain period; c, rain stopping time; and d, destruction map. The epicenter is shown as a red circle in a–c and as a light blue circle in d. The original maps are colorless, but are colored above for ease of understandingBack to article page