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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Latest News
NNSA awards BWXT $1.5B defense fuels contract
The Department of Energy’s National Nuclear Security Administration has awarded BWX Technologies a contract valued at $1.5 billion to build a Domestic Uranium Enrichment Centrifuge Experiment (DUECE) pilot plant in Tennessee in support of the administration’s efforts to build out a domestic supply of unobligated enriched uranium for defense-related nuclear fuel.
Joachim Ehrhardt, J. A. Jones
Nuclear Technology | Volume 94 | Number 2 | May 1991 | Pages 196-203
Technical Paper | Advances in Reactor Accident Consequence Assessment / Nuclear Reactor Safety | doi.org/10.13182/NT91-A34541
Articles are hosted by Taylor and Francis Online.
COSYMA (COde SYstem from MARIA) is a new program package for assessing the off-site consequences of accidental releases of radioactive material to atmosphere, developed as part of the Commission of the European Communities Methods for Assessing the Radiological Impact of Accidents (MARIA) program. It represents a fusion of ideas and modules from the program system UFOMOD from Kernforschungszentrum Karlsruhe, the program MARC from the National Radiological Protection Board, new model developments, and data libraries from other MARIA contractors. The flexible coding permits a problem-oriented application to different sites, source terms, emergency plans, and needs of users in the various parts of Europe. An overview is given of the structure, models, and endpoints of COSYMA.
