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Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
WIPP’s SSCVS: A breath of fresh air
This spring, the Department of Energy’s Office of Environmental Management announced that it had achieved a major milestone by completing commissioning of the Safety Significant Confinement Ventilation System (SSCVS) facility—a new, state-of-the-art, large-scale ventilation system at the Waste Isolation Pilot Plant, the DOE’s geologic repository for defense-related transuranic (TRU) waste in New Mexico.
Simon A. Vreeke, Gary M. Sandquist
Nuclear Science and Engineering | Volume 42 | Number 3 | December 1970 | Pages 295-305
Technical Paper | doi.org/10.13182/NSE70-A21219
Articles are hosted by Taylor and Francis Online.
A method for studying systems of differential equations employing an interactive computer system with a display screen is presented and applied to three nonlinear problems in reactor kinetics. Interactively it is possible to construct phase space solutions of second- and third-order systems of equations. It is also possible to project from the three-dimensional space and to consider the solutions of the equations as explicit functions of the independent variable. The method is demonstrated on three different nonlinear problems of interest to nuclear reactor kinetics. A second-order problem with temperature-dependent reactivity is considered. Two third-order problems with reactivity a function of two effective temperatures and 135Xe concentration, respectively, are also considered. The method of analysis makes it possible to efficiently study the effect of various parameter values on the solutions of the equations. Limit cycle behavior is investigated and the effect of the parameters of the model on the limit cycles is studied with greater effectiveness than can be achieved by an analytical study.
