Nuclear Science


Radiation Transport Methods and Applications

Fusion ITER Analyses

Modeling and simulation of fluxes in the ITER fusion machine using the Denovo deterministic radiation transport code.

Radiation transport R&D focuses on developing and applying high-performance computational radiation transport and shielding methods, analysis expertise, and applications experience to provide problem solving tools, technical solutions, and policy advice for internal and external customers over many challenging applications areas. A key characteristic of our work is the synthesis of leading-edge computational methods development and software engineering with a broad and deep base of design and analysis expertise. Our computational tools provide solutions to enormous and challenging nuclear energy and national security applications and are designed to scale from utilizing the full capacity of the world’s fastest supercomputers down to computer clusters and laptop computers. 

We continuously advance the state-of-the-art with our signature codes and analysis capabilities in:

  • deterministic and Monte Carlo radiation transport methods (Denovo, Shift, Monaco)
  • hybrid deterministic/Monte Carlo methods that use the best capabilities of both to produce more accurate solutions more quickly (ADVANTG, Mavric)
  • sensitivity and uncertainty quantification, perturbation theory, and design optimization methods
  • solvers and algorithm development
  • inverse transport methods
  • radiation dose and damage assessments
Urban Nuclear Weapons Effects Modeling

Modeling and simulation of the prompt dose from a radiation source in an urban environment using the Denovo deterministic radiation transport code.

We apply and provide support for these tools for internal customers including the Spallation Neutron Source, the High Flux Isotope Reactor, the DOE Nuclear Energy Modeling and Simulation Hub (CASL - Consortium for Advanced Simulation of Light Water Reactors), and the US-ITER organization. External customers and sponsors include the Department of Energy, the Nuclear Regulatory Commission, the Department of Defense, and the Department of Homeland Security, as well as other government, academic and private organizations. We collaborate internationally in our areas of expertise and provide leadership in the OECD Working Party on Issues in Reactor Safety (WPRS) Expert Group on Radiation Transport and Shielding (EGRTS).

For More Information, Contact:

Group Leader, Radiation Transport
Bob Grove

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