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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.
William P. Kelleher, Don Steiner
Fusion Science and Technology | Volume 15 | Number 4 | July 1989 | Pages 1507-1519
Technical Paper | Plasma Engineering | doi.org/10.13182/FST89-A25341
Articles are hosted by Taylor and Francis Online.
A personal-computer (PC)-based calculational approach assesses magnetohydrodynamic (MHD) equilibrium and poloidal field (PF) coil arrangement in a highly interactive mode, well suited for tokamak scoping studies. The system developed involves a two-step process: First the MHD equilibrium is calculated and then a PF coil arrangement, consistent with the equilibrium, is determined in an interactive design environment. The approach is used to examine four distinctly different toroidal configurations: the STARFIRE reactor, a spherical torus (ST), the Big Dee, and an elongated tokamak. In these applications the PC-based results are benchmarked against those of a mainframe code for STARFIRE, ST, and Big Dee. The equilibrium and PF coil arrangement calculations obtained with the PC approach agree within a few percent with those obtained with the mainframe code. The applications and benchmarks demonstrate both the flexibility and the accuracy of the PC-based system, making it an ideal tool for scoping studies.
