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
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Qing Biao Shen
Nuclear Technology | Volume 132 | Number 1 | October 2000 | Pages 61-65
Technical Paper | Accelerator Applications | doi.org/10.13182/NT00-A3129
Articles are hosted by Taylor and Francis Online.
A white light neutron source can be produced if a thick target is bombarded by an intense proton beam of 70 MeV. With metal tungsten as a target material, the calculations are made by using the SPEC and DDCS programs. The calculated results show that the reactions occur for 4.6% of incident 70-MeV protons before stopping in a thick W target. The total neutron intensity produced by a 70-MeV and 200-A proton beam is 1.01 × 1014/s. The average neutron energy is 4.19 MeV. The neutron intensity >10 MeV is 1.15 × 1013/s, of which most is emitted in the forward small-angle region. This kind of white light neutron source is very useful in practice.
