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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.
Jianglong Wei, Chundong Hu, Lizhen Liang
Fusion Science and Technology | Volume 61 | Number 3 | April 2012 | Pages 209-215
Technical Paper | doi.org/10.13182/FST12-A13533
Articles are hosted by Taylor and Francis Online.
Efficient operation of the gas neutralizer is important to the neutral beam injection (NBI) system, which forms part of the auxiliary heating systems for Experimental Advanced Superconducting Tokamak (EAST). The particle transport through the beamline of the EAST NBI system was investigated by the recently developed numerical simulation code based on the Monte Carlo treatment of collisions. This paper reports the simulation results on the ion beam transport through the EAST neutralizer and the beam deflections in the neutralizer due to the EAST stray magnetic field. The results show that the current design of the magnetic shield for the EAST neutralizer is able to meet the requirement. The relations of the optimal neutralizer thickness to the beam energy and the corresponding fractional power carried by each particle species are also given.