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
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.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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
May 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
June 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Waste Management 2024: The symposia at 50
This year marked the 50th anniversary of Waste Management Symposia’s Waste Management Conference, held March 10–14 in Phoenix, Ariz. The event has grown significantly since the first Waste Management Conference in 1974, which attracted about 200 attendees. This year’s conference saw a record attendance of around 3,300 people from more than 20 different countries and boasted 235 technical sessions and 89 exhibitors.
W. H. Hedley, F. S. Adams, G. E. Gibbs, D. R. Ming, K. J. Myers, J. E. Wells
Fusion Science and Technology | Volume 21 | Number 2 | March 1992 | Pages 678-682
Safety and Measurement (Monitoring) | doi.org/10.13182/FST92-A29825
Articles are hosted by Taylor and Francis Online.
A probabilistic risk assessment was made on the TERF process in order to establish its expected degree of reliability and to locate places in the system which could be improved by revision of the equipment or the operating procedures. The equipment design of the TERF was evaluated using a fault tree study. The probability of human failures was then evaluated by adding their probabilistic effects to the fault tree and then reevaluating it. It was found that 1) the TERF system is expected to be very reliable, with an annual expected downtime of only 2.35 hours, 2) the expected downtime comes almost entirely from process equipment failure rather than human errors, and 3) that certain equipment changes could be made that increased the system reliability. These equipment changes included 1) making provision for blocking off certain automatic control valves with more reliable manual valves to facilitate their repair and 2) making the two sources of power to the TERF totally independent of each other.