SIERRA

SIERRA is an integrated code suite for calculating doses from radioactive effluents released by nuclear power plants. Source Term calculates gaseous and liquid releases for PWRs and BWRs (modernized GALE). ATD models the atmospheric transport and dispersion of gaseous releases using site meteorology (modernized ARCON96, PAVAN, and χOQDOQ). The Environmental module computes doses from gaseous and liquid effluents (modernized GASPAR and LADTAP), which are combined into doses from all pathways.