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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott 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!
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Fusion Science and Technology
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Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
T.L. Grimm, K.E. Kreischer, W.C. Guss, R.J. Temkin
Fusion Science and Technology | Volume 21 | Number 3 | May 1992 | Pages 1648-1653
Plasma Engineering | doi.org/10.13182/FST92-A29957
Articles are hosted by Taylor and Francis Online.
A 200–300 GHz high power pulsed gyrotron oscillator has recently been operated in a 14 T Bitter magnet. The design of this pulsed gyrotron is based on continuous wave (CW) constraints. A single cylindrical waveguide cavity with linear tapers on each end was tested using two magnetron injection guns (MIG). The first produces a large electron beam which excites whispering gallery modes and the second produces a smaller beam that will couple to volume modes. The highest output power of 970 kW was generated at 229 GHz in the TE34,6 using the large MIG with a 59 A, 92 kV electron beam. This corresponds to an efficiency of 18% which was the highest produced in this mode. Similar efficiencies were obtained at 202 and 213 GHz using the same MIG and at 290 GHz using both the large and small MIG. The experimental power and efficiency is about a factor of two below the single mode theoretical predictions, even at low current. A detailed parameterization of the TE34,6 mode's operating range, measurements of the beam's velocity ratio (α), and comparison to previous high frequency work at MIT imply that mode competition is one important cause of the low experimental power and efficiency.
