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Division Spotlight
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.
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.
Luis E. Herranz, Claudia López (CIEMAT)
Proceedings | 2018 International Congress on Advances in Nuclear Power Plants (ICAPP 2018) | Charlotte, NC, April 8-11, 2018 | Pages 318-324
Worldwide there has been an enormous interest to fully understand the Fukushima accident unfolding, as a way to gain key insights for prevention of these accidents and mitigation of their consequences. This paper focuses on the CIEMAT’s forensic analysis of the Fukushima Unit 1 (1F1) accident sequence. By identifying the major challenges faced for a consistent interpretation of the data available, a description of the MELCOR 2.2 model built to capture the main accident signatures is presented, with particular emphasis on fission product release and transport. Even though this study should be seen as a work in progress, the results here presented are based on a defendable set of hypotheses and approximations and highlight some interesting observations that might have affected fission product release and transport. Among them are worth mentioning the deposit remobilization during the transient (Cesium), the moderate retention in the suppression pool due to the WW bypass meant by direct leaks between RPV and DW and the potential reentrainment as a result of pool saturation. This being said, it’ll be hard to confirm any of these insights concerning fission products. This work is framed under the BSAF Phase 2 project of the OECD and it has been supported by the Spanish Nuclear Regulatory Body through the CSN-CIEMAT collaboration agreement on Severe Accidents (ACAS).