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
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
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
Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Michael F. Dowling, Jason D. Wartell, Sheldon M. Jeter, Said I. Abdel-Khalik
Nuclear Technology | Volume 117 | Number 3 | March 1997 | Pages 353-365
Technical Paper | Heat Transfer and Fluid Flow | doi.org/10.13182/NT97-A35349
Articles are hosted by Taylor and Francis Online.
A capacitance-type sensor whose sensitivity is sufficiently high to detect liquid water droplets in a stream of gas with very low moisture content is described. Instantaneous capacitance is measured for a probe consisting of two closely spaced parallel plates through which a two-phase mixture is flowing; the presence of liquid within the sensor’s active volume generates a measurable capacitance increase due to the much higher dielectric constant of liquid water compared with gas or steam. Proof-of-concept experiments were carried out to determine the relative effects of droplet size, velocity, and position on the output of the sensor. The probe detected individual water droplets in the range of 7.5 to 20.0 μl and had a voltage output that was linear with droplet volume in this range. In addition, the signal pulse width was found to be a sensitive indicator of droplet velocity. The data indicate that the probe can be used to measure the moisture fraction of a high-quality gas flow in the range from 0 < β <0.013 (liquid volume/total volume) with a maximum standard deviation of ∼0.001.