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
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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
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.
Robert E. Hyland
Nuclear Technology | Volume 12 | Number 2 | October 1971 | Pages 152-161
Technical Paper | Reactor | doi.org/10.13182/NT71-A31023
Articles are hosted by Taylor and Francis Online.
A nuclear analysis using transport theory was made of an open cycle gas-core reactor for assumed operating conditions. Calculations were made for cavity diameters from 2.44 to 4.88 m, for hydrogen (cavity) bypass variation from 0 to 99%, for reflector thickness from 0.61 to 1.07m, and for both isotopes 235U and 233U as fuel. The results for these configurations indicated that 233U and some bypass hydrogen may be necessary to keep critical mass levels low enough to give system pressures of <1000 atm.