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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.
Lee C. Cadwallader, Cory S. Miller, Kathryn A. McCarthy
Fusion Science and Technology | Volume 34 | Number 3 | November 1998 | Pages 599-603
Safety and Environment (Poster Session) | doi.org/10.13182/FST98-A11963679
Articles are hosted by Taylor and Francis Online.
This paper discusses the possible forms of injury to maintenance personnel that could arise from a cryostat air ingress event. The results of a thermal-hydraulic analysis of several cryostat breach sizes show the time scales for possible injury and the severity of air pressure transients in the rooms near the cryostat. Energy sources were reviewed to identify worker safety concerns in a cryostat vacuum breach event. The room air pressure drop in medium and large breaches is the most important worker safety concern. Standard vacuum safety techniques are reducing time in proximity, maintaining an exclusion area, and employing some form of barrier or shielding between workers and vacuum reservoirs. Other suggested safety techniques discussed here are engineering controls (doors that can be easily opened under differential pressure), and administrative controls (buddy system, evacuation plan). These techniques are easy to implement in early design stages.