Core Physics
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Core Physics Analysis and Review


Zachry Nuclear’s Analysis Division has completed work for a wide range of nuclear industry clients. From most of the nuclear power plants in the United States to various international companies, we have provided timely expertise and support for our clients.

Our technical staff has experience in development of computer codes and analytical models for nuclear reactor cores. Zachry has developed reactor kinetics methods and models for coupled thermal hydraulic and neutronics analysis. These applications have involved simple point kinetics approaches, one-dimensional kinetics and advanced three-dimensional kinetics components.

We have developed nuclear data generation models and interface codes to manipulate the large and complex data sets that are required to support the multi-dimensional kinetics models.

We have applied these models in support of international reactor transient benchmark projects involving the complex interaction between the reactor core and the nuclear reactor system. These models have also been used by other groups in the nuclear industry to support such projects as the behavior of nuclear fuel assemblies under extreme transient conditions.

We have performed reactor physics analyses to support design changes to the core of the Advanced Test Reactor at the Idaho National Laboratory (INL). These studies involved the use of the MCNP code to compute neutron and gamma ray photon distributions as well as several codes to compute the criticality impact of candidate core configurations.


Analysis Support

For more information on our core analysis experience and how that can be applied at your plant, please contact Mike Howard or Anita Gates. The Analysis Division contact list is here, including phone numbers.