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fDesc[0] = "RadPuff is a simulator for projection of consequence of either a &ldquo;dirty bomb&rdquo; or accidental release from a nuclear power plant. The term &quot;dirty bomb&quot; is one type of a &ldquo;radiological dispersal device&rdquo; (RDD) that combines a conventional explosive, such as dynamite, with radioactive material. RadPuff makes prompt and accurate projection so that proper mitigation actions could be based upon. For normal plant release, PCTRAN calculated source term is fed into RadPuff to do simultaneous projection.<br /> <br /> A dirty bomb&rsquo;s radiation could be dispersed within a few blocks or miles of the explosion. For given amount and type of radioactive material and weather conditions, RadPuff predicts the dispersed thyroid and whole body (TEDE) dose. Up to 65 radioactive isotopes released in a time-dependent table in the format of Excel spreadsheet is prepared by the user. Based on this input, RadPuff uses a Gaussian puff dispersion model to calculate downstream dispersion factor. The wind speed, direction and atmospheric stability factor (that is a function of upper and lower atmospheric temperature difference) are allowed to vary during the course of event. A simple click with the plume shows either the dose rate or integrated dose. This simple and convenient tool can be used by radiation protection agencies or related organizations.";

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