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Division Spotlight
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
Meeting Spotlight
2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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NRC issues interim guidance on reactor component disposal
The Nuclear Regulatory Commission is providing guidance to nuclear power plant licensees looking to use decommissioning trust fund (DTF) money to dispose of major reactor components like steam generators and reactor vessel heads while the plant is still operational.
On August 5, the NRC issued the interim staff guidance Use of the Decommissioning Trust Fund During Operations for Major Radioactive Component Disposal (REFS-ISG-2024-01), which provides the NRC staff’s regulatory position regarding the use a reactor’s DTF for the disposal of major radioactive components while the plant is still operational. Under NRC regulations, the DTF may be accessed solely for decommissioning expenses as defined in 10 CFR 50.2, unless an exemption is granted by the NRC.
T. Serpekian, H.P. Buchkremer, R. Heinen, D. Stver, K.D. Fischmann
Fusion Science and Technology | Volume 8 | Number 2 | September 1985 | Pages 2486-2490
Fission Reactor | Proceedings of the Second National Topical Meeting on Tritium Technology in Fission, Fusion and Isotopic Applications (Dayton, Ohio, April 30 to May 2, 1985) | doi.org/10.13182/FST85-A24652
Articles are hosted by Taylor and Francis Online.
The helium coolant of a high temperature nuclear power reactor (HTR) operating in the temperature region 570 to 1220 K has to be purified from impurities such as H2, N2, CO, CO2, H2O and CH4. Also tritium has to be removed especially in the case of the process heat reactor to minimize contamination of product gases. Cerium misch metal was investigated as getter material at 570 K under near realistic conditions. The results show that this method can become an effective, alternative gas purification system. Carbon monoxide gives some concern if it is present in high concentrations by partially passivating the material. But the getter bed can easily be re-activated by a heating process.
Measurements with tritium injection showed that not all tritium is being gettered. Probably some species (possibly CH3T) are formed which are not as readily absorbed as tritium in form of T2, HT or HTO. Work in this field is going on to clarify this effect.