ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
INL accelerates nuclear energy research with Bitterroot supercomputer
A new supercomputer named Bitterroot started operating in June at Idaho National Laboratory’s Collaborative Computing Center (C3) and is speeding up nuclear energy research by improving access to modeling and simulation tools. Bitterroot arrived at INL in March, and INL announced July 15 that it was open to users on June 18 after installation and an extensive program of testing.
C. Saville, G. Ascione, S. Elwood, A. Nagy, S. Raftopoulos, R. Rossmassler, J. Stencel, D. Voorhees, C. Tilson
Fusion Science and Technology | Volume 28 | Number 3 | October 1995 | Pages 1078-1082
Analysis and Accountancy | Proceedings of the Fifth Topical Meeting on Tritium Technology In Fission, Fusion, and Isotopic Applications Belgirate, Italy May 28-June 3, 1995 | doi.org/10.13182/FST95-A30550
Articles are hosted by Taylor and Francis Online.
The U.S. Department of Energy (DOE) requires control and accountability of nuclear materials for all DOE-owned nuclear materials at licensed and licensed-exempt facilities. Through a series of DOE orders (5633. 3 and associated referenced series), the DOE has set forth minimum requirements and procedures for control and accountability of nuclear materials. The TFTR has been in deuterium-tritium (D-T) operations since November 1993 utilizing DOE-owned tritium for fueling the plasma reaction. As a result of the current D-T experiments at TFTR, 30 grams of tritium have been shipped to PPPL, tracked through the tritium storage and delivery systems, processed as scrap or waste, and shipped back to other DOE-owned facilities for disposal or reprocessing. Under the guidance of the DOE control and accountability orders, PPPL is required to implement and maintain a program that includes the establishment of nuclear material balance areas, material surveillance, calibration and verification of measurement devices, graded safeguards for protection of tritium inventories, computerized tracking of measurement control points, material balance reports, shipper/receiver evaluations, and extensive DOE reporting requirements. This paper discusses the program (PPPL Material Control and Accountability Plan) that has been implemented to track DOE-owned tritium and all other accountable source material. Specifically, this paper details the methods used to measure tritium in various systems at TFTR, resolve inventory differences, perform inventory by difference inside the Tokamak, process and measure plasma exhaust and other effluent gas streams, process, measure and ship scrap or waste tritium on molecular sieve beds, and detail the organizational structure of the Material Control and Accountability (MC&A) group. In addition, this paper describes a Unix™ based computerized software system developed at PPPL to account for all tritium movements throughout the facility.