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Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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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
College students help develop waste-measuring device at Hanford
A partnership between Washington River Protection Solutions (WRPS) and Washington State University has resulted in the development of a device to measure radioactive and chemical tank waste at the Hanford Site. WRPS is the contractor at Hanford for the Department of Energy’s Office of Environmental Management.
Kunihiro Yamamoto, Zensaku Kawara, Tomoaki Kunugi, Takayoshi Norimatsu
Fusion Science and Technology | Volume 60 | Number 2 | August 2011 | Pages 585-589
IFE Design & Technology | Proceedings of the Nineteenth Topical Meeting on the Technology of Fusion Energy (TOFE) (Part 2) | doi.org/10.13182/FST11-A12446
Articles are hosted by Taylor and Francis Online.
To protect from high-energy fluxes caused by nuclear fusion reaction to a first wall of a laser-fusion reactor such as KOYO reactor, the cascade-type falling liquid-metal film flow was proposed as a liquid-wall concept which was one of the reactor chamber cooling and wall protection schemes. In this concept, vapor released by fuel targets and the liquid wall will be condensed on the chamber ceiling which is kept relatively cold. The condensed liquid-metal vapor makes many droplets on the ceiling, and then the droplets will agglomerate, and eventually make the liquid film on the ceiling surface. The liquid-metal film will flow from the ceiling to the liquid first-wall. In this study, the proof-of-principal (POP) experiments and numerical simulations were conducted regarding the liquid-film flow on the ceiling wall. It is found that if the liquid film is formed on the ceiling surface, the liquid flows along the ceiling wall and from the ceiling wall down to the reactor core as long as the vapor is supplied. Moreover, the measurements of the liquid-film thickness were taken by using a confocal laser scanning microscopy, and the effects of the wettability of the wall on the liquid film flow behavior were obtained.