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Division Spotlight
Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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February 2025
Latest News
Investment bill would provide funding options for energy projects
Coons
Moran
The bipartisan Financing Our Futures Act, which expands certain financing tools to all types of energy resources and infrastructure projects, was reintroduced to the U.S. Senate on February 20 by Sens. Jerry Moran (R., Kan.) and Chris Coons (D., Del.).
Via amendment to the Internal Revenue Code, the legislation would allow advanced nuclear energy projects to form as master limited partnerships (MLPs), a tax structure currently available only to traditional energy projects.
An MLP is a business structure that is taxed as a partnership but the ownership interests of which are traded like corporate stock on a market. Until the Internal Revenue Code is amended, MLPs will continue to be available only to investors in energy portfolios for oil, natural gas, coal extraction, and pipeline projects that derive at least 90 percent of their income from these sources. This change would take effect on January 1, 2026.
G. Apostolakis, T. L. Chu
Nuclear Technology | Volume 50 | Number 1 | August 1980 | Pages 5-15
Technical Paper | Reactor | doi.org/10.13182/NT80-A17065
Articles are hosted by Taylor and Francis Online.
The reliability analysis of the engineered safety systems of nuclear power plants requires the calculation of the pointwise and average unavailabilities of redundant systems under periodic test and maintenance. The complexity of the calculations usually requires simulation for realistic results. However, simple analytical expressions showing the significant contributions to the unavailability provide insights concerning the relative importance of the potential failure modes of the systems, such as hardware failures, demand-type failures, human errors, and various types of dependent (common cause) failures. These expressions can be used for a quick calculation of the unavailability as well as the propagation of uncertainties by analytical methods, e.g., the method of moments.
