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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.
B. H. Park et al.
Fusion Science and Technology | Volume 47 | Number 1 | January 2005 | Pages 112-115
Technical Paper | Open Magnetic Systems for Plasma Confinement | doi.org/10.13182/FST05-A619
Articles are hosted by Taylor and Francis Online.
Recently, pre-ionization experiments using thermal electron emission from LaB6 cathode and electron heating by 2 kW@14.5 GHz Klystron installed at cusp and plug cell respectively have been carried out in Hanbit mirror device. Charge exchange collision between ion and neutral atom has been concerned as an important mechanism of ion energy loss in the Hanbit discharges, hence the high pressure of neutral particles is one of the most reasonable cause of low ion temperature. In this work, we investigate low pressure operation mode with help of the pre-ionization to enhance the ion temperature. The ion temperature and temperature anisotropy are measured and also inferred by ELA(End Loss Analyzer) for central cell plasma. We also characterize RF heating properties for different regimes of /c0i using simulation code for electromagnetic waves.
