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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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Remembering Charles E. Till
Charles E. Till
Charles E. Till, an ANS member since 1963 and Fellow since 1987, passed away on March 22 at the age of 89. He earned bachelor’s and master’s degrees from the University of Saskatchewan and a Ph.D. in nuclear engineering from Imperial College, University of London. Till initially worked for the Civilian Atomic Power Department of the Canadian General Electric Company, where he was the physicist in charge of the startup of the first prototype CANDU reactor in Canada.
Till joined Argonne National Laboratory in 1963 in the Applied Physics Division, where he worked as an experimentalist in the Fast Critical Experiments program. He then moved to additional positions of increasing responsibility, becoming division director in 1973. Under his leadership, the Applied Physics Division established itself as one of the elite reactor physics organizations in the world. Both the experimental (critical experiments and nuclear data measurements) and nuclear analysis methods work were internationally recognized. Till led Argonne’s participation in the International Nuclear Fuel Cycle Evaluation (INFCE), and he was the lead U.S. delegate to INFCE Working Group 5, Fast Breeders.
M. Tanaka, T. Sugiyama, T. Ohshima, I. Yamamoto
Fusion Science and Technology | Volume 60 | Number 4 | November 2011 | Pages 1391-1394
Detritiation and Isotope Separation | Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) | doi.org/10.13182/FST11-A12690
Articles are hosted by Taylor and Francis Online.
To develop a tritium monitoring system with a membrane gas separator, the extraction characteristics of a hydrogen isotope pump using CaZr0.9In0.1O3- as proton conductor were evaluated over the temperature range from 873 K to 1073 K by electrolysis of tritiated water vapor. Although the isotope ratio between proton and tritium in the anode compartment was extremely low, tritium gas (HT) could be extracted along with hydrogen gas (H2) to the cathode compartment by the electrochemical hydrogen pump. The T/H isotope ratio in the cathode compartment was lower than that in the anode compartment because of the isotope effect in the hydrogen pump. However, when the hydrogen recovery rate increased, the ratio of hydrogen isotopes approached unity, which might be caused by variation in the T/H ratio along the axial direction. With respect to the tritium memory effect in the proton conductor, the isotope exchange reaction using wet gas was found to be an efficient method for tritium decontamination.