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Bowman & Smith on NRC security programs
Greg Bowman and George Smith work for the Nuclear Regulatory Commission in implementing programs that deal with risk, whether to nuclear power plants or from nuclear materials, such as radiological sabotage and theft or diversion of materials. Bowman is the director of the NRC’s Division of Physical and Cybersecurity Policy in the Office of Nuclear Security and Incident Response. Smith is the senior project manager for security in the Source Management & Protection Branch of the Division of Materials Safety, Security, State, and Tribal Programs in the Office of Nuclear Material Safety and Safeguards.
The three initiatives Bowman and Smith discussed with Nuclear News editor-in-chief Rick Michal are the Insider Threat Program, the Cybersecurity Program, and the Domestic Safeguards Program.
Norihiro Doda, Yasushi Okano, Hisashi Ninokata
Nuclear Technology | Volume 144 | Number 2 | November 2003 | Pages 175-185
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT03-A3438
Articles are hosted by Taylor and Francis Online.
A numerical simulation thermal-hydraulics code called SPOOL based on computational fluid dynamics considering sodium reaction and aerosol transport is developed. Sodium pool fires are simulated using the SPOOL code, and periodic oscillation of the flame is observed with frequency similar to that observed for small-scale pool fire experiments with industrial fuels. The calculated mass-burning rate differs slightly from experimental results, yet it increases with pool temperature in agreement with experimental trends. The mass flux of aerosol driven by thermophoresis is calculated to be about 100 times larger than that by gravity, and the aerosols become concentrated at the edge of the pool. The release fraction, obtained by dividing the total mass of aerosol released into the atmosphere by that produced, increases with pool temperature in qualitative agreement with experiments.