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Conference Spotlight
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.
W. H. Ko, D. K. Park, W. S. Choi, B.C. Kim, W.C. Kim, M. Kwon
Fusion Science and Technology | Volume 39 | Number 1 | January 2001 | Pages 229-232
Poster Presentations | doi.org/10.13182/FST01-A11963448
Articles are hosted by Taylor and Francis Online.
The end loss ion energy distributions are measured in Hanbit1 mirror plasma produced by a 3.75-MHz, 500 kW° amplifiers with the slot antenna. The measurement of the ion energy distribution in the end region gives us the important information on the loss cone region of mirror plasmas.
The ion energy analyzer, mounted on the end region of cusp in the Hanbit, is versatile diagnostics designed to measure the parallel ion energy distributions. We can obtain the ion energy distribution from the current-voltage curve by sweeping the voltage on the ion repeller while keeping the other grids properly biased to repel the unwanted species. We show that the end loss ion currents, involved the magnetic confinement, vary according as the strength of magnetic field
We compared an end loss ion distribution obtained from the Hanbit with ion energy from DC discharge to test the analyzer.