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Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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
NRC updating GEIS rule for new nuclear technology
The Nuclear Regulatory Agency is issuing a proposed generic environmental impact statement (GEIS) for use in reviewing applications for new nuclear reactors.
In an April 17 memo, NRC secretary Carrie Safford wrote that the commission approved NRC staff’s recommendation to publish in the Federal Register a proposed rule amending 10 CFR Part 51, “Environmental Protection Regulations for Domestic Licensing and Related Regulatory Functions.”
K. Kotoh, M. Tanaka, T. Sakamoto, S. Takashima, T. Asakura, T. Uda, T. Sugiyama
Fusion Science and Technology | Volume 56 | Number 1 | July 2009 | Pages 184-189
Tritium, Safety, and Environment | Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 1) | doi.org/10.13182/FST09-A8899
Articles are hosted by Taylor and Francis Online.
Authors have been studying the adsorption or/and desorption behavior of H2 or/and D2 with synthetic zeolite packed-beds under the cryogenic condition of liquid nitrogen temperature, aiming at developing a pressure swing adsorption (PSA) process of hydrogen isotope separation useful for tritium processing in fusion fuel cycle and environmental tritium safety confinement, or convenient for deuterium production. We examined the mass transfer in the adsorption system of D2 diluted in H2 with zeolite packed-beds, experimentally and analytically. The results have been presented, where it is shown that the enrichment factor of D2 in packed-beds matches with estimated from the isothermal adsorption characteristics and that the mass transfer is controlled in the macro-pore media of adsorbents. In this work, the behavior of tracer HD added in a H2-D2 mixture with zeolite 5A and 13X packed-beds was experimentally investigated, and was analyzed by the curve-fitting as well as for the behavior of D2. In this report, the experimental results demonstrate that the breakthrough curves of HD exhibit analogous to those of D2 but reduced in the breakthrough time in comparison to the latter. The analytical results verify that the HD/H2 separation factor in packed-beds agrees with predicted from the isothermal adsorption characteristics, and show that the isotope effect on the mass transfer depends on the molecular mass effect.