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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.
Katsuji Chiyoda
Fusion Science and Technology | Volume 27 | Number 3 | April 1995 | Pages 310-313
Reversed Field Pinch Studies | doi.org/10.13182/FST95-A11947094
Articles are hosted by Taylor and Francis Online.
An equilibrium configuration of a reversed field pinch (RFP) plasma, enclosed by a conducting shell, is derived. The plasma pressure and the toroidicity are taken into account. The flux function is obtained. The shift of the center of the flux surface from the center of the torus is also obtained. This equilibrium is a generalization of the force-free field. Magnetohydrodynamic (MHD) stability of the interchange mode is analyzed. Scaling laws for the pressure and other quantities, averaged over the plasma cross section, are derived.
