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
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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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Nuclear Science and Engineering
February 2025
Nuclear Technology
January 2025
Fusion Science and Technology
Latest News
Reboot: Nuclear needs a success . . . anywhere
The media have gleefully resurrected the language of a past nuclear renaissance. Beyond the hype and PR, many people in the nuclear community are taking a more measured view of conditions that could lead to new construction: data center demand, the proliferation of new reactor designs and start-ups, and the sudden ascendance of nuclear energy as the power source everyone wants—or wants to talk about.
Once built, large nuclear reactors can provide clean power for at least 80 years—outlasting 10 to 20 presidential administrations. Smaller reactors can provide heat and power outputs tailored to an end user’s needs. With all the new attention, are we any closer to getting past persistent supply chain and workforce issues and building these new plants? And what will the election of Donald Trump to a second term as president mean for nuclear?
As usual, there are more questions than answers, and most come down to money. Several developers are engaging with the Nuclear Regulatory Commission or have already applied for a license, certification, or permit. But designs without paying customers won’t get built. So where are the customers, and what will it take for them to commit?
W. E. Downs
Nuclear Technology | Volume 5 | Number 2 | August 1968 | Pages 55-61
Technical Paper and Note | doi.org/10.13182/NT68-A27950
Articles are hosted by Taylor and Francis Online.
An improved 124Sb-Be neutron source was developed to give a thermal flux of 6 × 108 n/(cm2 sec) over a 20-cm3 volume with a uniformity better than ±4%. With a unit of this type, 90 radioisotopes with a specific activity of 0.1 µC/g can be produced. Because of the constancy of the flux, an analytical precision of ±1% is easily attainable. The present system will handle more than one sample transfer unit, allowing several simultaneous experiments or analyses. The pool system described here is a versatile research unit and not a general-purpose industrial analytical facility. Considering the features and costs of this 124Sb-Be source, it appears best suited for applications requiring a continuous thermal-neutron flux, such as an on-line system for industry.
