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
Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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!
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Latest News
BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
John T. Mihalczo, Jon A. Reuscher
Nuclear Technology | Volume 11 | Number 4 | August 1971 | Pages 563-577
Technical Paper | Symposium on Fuel Rod Failure and Its Effect / Reactor | doi.org/10.13182/NT71-A30854
Articles are hosted by Taylor and Francis Online.
The time-dependent behavior of the neutron population in an unreflected, unmoderated cylindrical assembly of 90 wt% uranium (93.2 wt% 235U), 10 wt% molybdenum alloy following rapid establishment of a superprompt criticality with negligible initial neutron population has been studied. Reactivity increases up to 14¢ above prompt criticality resulted in pulses yielding as many as 3.72 X1017 fissions with reactor periods as short as 12.4 µsec and temperature increases as large as 880°C. In these experiments the reactor produced pulses of 2 x 1017 fissions without any damage. A pulse of 2.37 x 1017 fissions resulted in permanent elongation of the bolts holding the core together, and a pulse of 2.66 x1017 fissions caused cracks in some of the core parts. Stresses obtained from measurements of the mechanical vibration of the reactor parts were consistent with the observed damage.