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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Fusion Science and Technology
Latest News
The RAIN scale: A good intention that falls short
Radiation protection specialists agree that clear communication of radiation risks remains a vexing challenge that cannot be solved solely by finding new ways to convey technical information.
Earlier this year, an article in Nuclear News described a new radiation risk communication tool, known as the Radiation Index, or, RAIN (“Let it RAIN: A new approach to radiation communication,” NN, Jan. 2025, p. 36). The authors of the article created the RAIN scale to improve radiation risk communication to the general public who are not well-versed in important aspects of radiation exposures, including radiation dose quantities, units, and values; associated health consequences; and the benefits derived from radiation exposures.
Hiroyuki Nakaharai, Satoshi Takami, Takehiko Yokomine, Shinji Ebara, Akihiko Shimizu
Fusion Science and Technology | Volume 52 | Number 4 | November 2007 | Pages 855-859
Technical Paper | First Wall, Blanket, and Shield | doi.org/10.13182/FST07-A1599
Articles are hosted by Taylor and Francis Online.
An effective heat transfer enhancement scheme is required to compensate for the decrease in heat transfer due to MHD effects in FLiBe based blanket design of fusion reactor. In present study, a twisted tape is selected as a potential candidate for a turbulence promoter, and a thermohydraulic behavior of turbulent flow of an electrically conducting fluid in a non-conducting pipe with twisted tape insertion under a transverse magnetic field is investigated. As a result, significant decrease of heat transfer performance is not observed compared with the same flow without the tape insertion because the heat transfer is dominated by the strong helical flow which is not suppressed by the magnetic field.