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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
INL makes a case for eliminating ALARA and setting higher dose limits
A report just released by Idaho National Laboratory reviews decades of radiation protection standards and research on the health effects of low-dose radiation and recommends that the current U.S. annual occupational dose limit of 5,000 mrem be maintained without applying ALARA—the “as low as reasonably achievable” regulatory concept first introduced in 1971—below that threshold.
Noting that epidemiological studies “have consistently failed to demonstrate statistically significant health effects at doses below 10,000 mrem delivered at low dose rates,” the report also recommends “future consideration of increasing this limit to 10,000 mrem/year with appropriate cumulative-dose constraints.”
Chang Nyung Kim
Fusion Science and Technology | Volume 64 | Number 4 | November 2013 | Pages 787-799
Technical Paper | doi.org/10.13182/FST13-A24097
Articles are hosted by Taylor and Francis Online.
A three-dimensional liquid metal magnetohydrodynamic (LMMHD) flow in a manifold with three subchannels under a uniform magnetic field has been examined based on the computational fluid dynamics method. Although numerous analytic, experimental, and numerical studies on LMMHD duct flows have been performed, detailed flow characteristics of a LMMHD flow in a manifold with multiple channels have not been studied much. In the current study detailed behaviors of the fluid velocity, pressure, current, and electric potential of LMMHD flows in a manifold with three subchannels under a uniform magnetic field are elucidated. Also, an imbalance of mass flow rates in the three subchannels is addressed.