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NRC approves TerraPower construction permit
Today, the Nuclear Regulatory Commission announced that it has approved TerraPower’s construction permit application for Kemmerer Unit 1, the company’s first deployment of Natrium, its flagship sodium fast reactor.
This approval is a significant milestone on three fronts. For TerraPower, it represents another step forward in demonstrating its technology. For the Department of Energy, it reflects progress (despite delays) for the Advanced Reactor Demonstration Program (ARDP). For the NRC, it is the first approval granted to a commercial reactor in nearly a decade—and the first approval of a commercial non–light water reactor in more than 40 years.
Kimberly Burns, Nolan Hertel, Armin Ansari
Nuclear Technology | Volume 168 | Number 3 | December 2009 | Pages 820-823
MC Calculations | Special Issue on the 11th International Conference on Radiation Shielding and the 15th Topical Meeting of the Radiation Protection and Shielding Division (PART 3) / Radiation Protection | doi.org/10.13182/NT09-A9312
Articles are hosted by Taylor and Francis Online.
After a radiological dispersal device event, there may be internally and/or externally contaminated victims. Those with life-threatening injuries may require immediate medical assistance prior to decontamination. The dose rates to which a healthcare provider is exposed due to the internal and external contamination of the victim were computed using Monte Carlo simulations and five anthropomorphic phantoms. For the external contamination modeling, the contamination is assumed to be uniformly distributed over the entire exterior of the victim's body. For the internal contamination modeling, the contamination was distributed in the appropriate organs according to biokinetic modeling. The specific isotopes considered were 60Co, 137Cs, 131I, 192Ir, and 241Am. The calculated dose rates demonstrate that life-saving care to stabilize critical patients can be provided without exceeding dose guidelines for first responders.