ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2023)
February 6–9, 2023
Amelia Island, FL|Omni Amelia Island Resort
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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Nuclear Science and Engineering
Fusion Science and Technology
Bringing 2022 ANS Standards Committee successes into the new year
By all accounts, 2022 brought many successes for the American Nuclear Society’s Standards Committee, including the initiation of five projects, reaffirmation of 11 current standards, and publication of seven new or revised standards. The entire collection of ANS current standards has been approved or reaffirmed (reapproved without change) by the American National Standards Institute (ANSI) within the past five years, keeping ANS in 100 percent compliance with ANSI’s requirement on maintaining current American National Standards. Also, the ANS standards program was reaccredited by ANSI on August 19, 2022, with the approval of a revised set of rules and procedures. ANS’s new rules and procedures take advantage of the opportunity to develop standards-related technical reports that may be registered with ANSI.
Baofu Lu, Eric Williams, Jerry Mauck, Michael Howard, Richard Wood, Edward L. Quinn
Nuclear Technology | Volume 202 | Number 2 | May-June 2018 | Pages 101-105
Technical Paper | doi.org/10.1080/00295450.2017.1416878
Articles are hosted by Taylor and Francis Online.
The purpose of this paper is to provide an overview of the development and assessment of the Diversity and Defense-in-Depth (D3) strategy for the TerraPower Traveling Wave Reactor-Prototype (TWR-P) advanced nuclear power plant. The TWR-P digital control system (DCS) is currently being designed by TerraPower. The instrumentation and control (I&C) design and configuration were based on standard digital control products. The control systems making up the DCS were selected because of their applicability to the functions required by TerraPower and the U.S. Nuclear Regulatory Commission. The installation of a digital-based plant protection system and other systems throughout the TWR-P enhances safety in many areas when compared to the previous generation of analog-based instrumentation systems.
Nuclear facilities have increased their use and reliance on digital technology in systems and equipment (e.g., I&C, electrical systems, and fluid systems). In addition to I&C, examples of safety-related equipment that may use digital technology include emergency diesel generators, pumps, valve actuators, motor control centers, breakers, priority logic modules, time-delay relays, and uninterruptible power sources.
In the United States and around the world, engineering and licensing activities in standards and guidance have been, and are being, developed to address this important consideration in protecting safety-related systems. This paper addresses the latest in standards and guidance development as well as a review of the application of this guidance in the specific case cited.