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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.
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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!
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Latest News
DOE issues RFQ for clean-energy projects at WIPP
The Department of Energy has issued a request for qualifications (RFQ) for interested parties that are looking to establish carbon pollution–free electricity (CFE) projects at its Waste Isolation Pilot Plant site in New Mexico.
Cheol Ho Pyeon, Takahiro Yagi, Kiichi Sukawa, Yoshimasa Yamaguchi, Tsuyoshi Misawa
Nuclear Science and Engineering | Volume 177 | Number 2 | June 2014 | Pages 156-168
Technical Paper | doi.org/10.13182/NSE13-21
Articles are hosted by Taylor and Francis Online.
Experimental studies on the thorium-loaded accelerator-driven system (ADS) were conducted at the Kyoto University Critical Assembly. Mockup experiments were carried out in both the critical and subcritical states to investigate the influence of different thermal neutron profiles on the thorium capture and fission reactions. Thorium plate irradiation experiments for the thorium capture and fission reactions demonstrate fission reactions in the critical state, and the calculated-to-experiment values of reaction rates show accuracy within a relative difference of ∼30%. In the ADS experiments with an external neutron source (14-MeV neutrons and 100-MeV protons), subcritical experiments were carried out in the thorium-loaded cores to investigate the influence of different thermal neutron profiles on thorium capture reaction rates by the measurement of 115In(n,γ)116mIn reactions. The results reveal the difference between reaction rate distributions attributed to varying not only the neutron spectrum of the core but also the external neutron source. A comparison between the measured and calculated reaction rate distributions reflects the accuracy of reaction-rate analyses for the thorium-loaded ADS experiments with an external neutron source. Additionally, kinetic experiments were carried out to deduce the prompt neutron decay constants and subcriticality by the pulsed neutron method.
