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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
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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Nuclear Science and Engineering
July 2025
Nuclear Technology
June 2025
Fusion Science and Technology
Latest News
Nominations open for CNTA awards
Citizens for Nuclear Technology Awareness is accepting nominations for its Fred C. Davison Distinguished Scientist Award and its Nuclear Service Award. Nominations for both awards must be submitted by August 1.
The awards will be presented this fall as part of the CNTA’s annual Edward Teller Lecture event.
Jianghua Wei, Songbo Han
Fusion Science and Technology | Volume 80 | Number 5 | July 2024 | Pages 695-701
Research Article | doi.org/10.1080/15361055.2023.2228566
Articles are hosted by Taylor and Francis Online.
Proton therapy in cancer treatment is an important application in nuclear science. As a key component of proton therapy, the patient positioning system (PPS) based on a robotic arm is used in cancer treatment. The PPS delivers the patient to the target position remotely for treatment with high accuracy. As a high safety and stability device in proton therapy, seismic load is one of the relevant accidental events that will affect the structural integrity of the PPS. In this study, a finite element model was built to investigate resistance of the PPS structure against seismic load. Two kinds of analysis methods (equivalent static analysis and response spectrum analysis) were carried out to calculate the displacement and stress fields to check the response of the PPS against the defined seismic load. The results indicated that all the stresses are lower than the permissible limits and the safety requirement.
