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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 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
Commercial nuclear innovation "new space" age
In early 2006, a start-up company launched a small rocket from a tiny island in the Pacific. It exploded, showering the island with debris. A year later, a second launch attempt sent a rocket to space but failed to make orbit, burning up in the atmosphere. Another year brought a third attempt—and a third failure. The following month, in September 2008, the company used the last of its funds to launch a fourth rocket. It reached orbit, making history as the first privately funded liquid-fueled rocket to do so.
Te-Chuan Wang, Shih-Jen Wang, Jyh-Tong Teng
Nuclear Technology | Volume 156 | Number 2 | November 2006 | Pages 133-139
Technical Paper | Fission Reactors | doi.org/10.13182/NT06-A3779
Articles are hosted by Taylor and Francis Online.
After the Three Mile Island accident, the U.S. Nuclear Regulatory Commission requested that nuclear power plants (NPPs) in the United States provide instruments to record reactor water levels. The instruments will improve reliability in diagnosing the approach of inadequate core cooling. The reactor vessel level indicating system (RVLIS) is a measuring system for determining the water level in the reactor vessel. RVLIS was installed at Maanshan NPP under this requirement. A station blackout (SBO) incident occurred in the Maanshan NPP on March 18, 2001. The SBO incident was simulated with the MELCOR 1.8.5 code. The important parameter, reactor vessel water level, was compared with plant data. The interesting phenomena about RVLIS responses included initial full water level above 100%, reactor pressure vessel (RPV) water shrinkage, and two peaks in upper range train A. The initial full water levels of the upper range were at ~112% because of calibration conditions. The two trains of the upper range dropped at ~1.2 h after SBO because of RPV water saturation. RVLIS upper range train A had two level rises after SBO because of two flows out of the pressurizer into the loop 2 hot leg. The results indicated that MELCOR could reproduce the RVLIS response very well.