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Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Fusion Science and Technology
Latest News
Bipartisan Fusion Energy Act pushes for regulatory clarity
Sen. Alex Padilla (D., Calif.) introduced the Fusion Energy Act (S. 4151) last month with a bipartisan group of cosponsors—John Cornyn (R., Texas), Cory Booker (D., N.J.), Todd Young (R., Ind.), and Patty Murray (D., Wash.). The legislation would codify the Nuclear Regulatory Commission’s regulatory authority over commercial fusion energy systems to streamline the creation of clear federal regulations that will support the development of commercial fusion power plants—and would require a report within one year on a study of risk- and performance-based, design-specific licensing frameworks for “mass-manufactured fusion machines.
“Congress must do everything in its power to ensure continued U.S. leadership in developing commercial fusion energy facilities,” said Padilla as he introduced the bill. “The Fusion Energy Act would provide regulatory certainty for investors as the NRC develops and streamlines frameworks for such facilities.”
Yoichi Watanabe
Nuclear Science and Engineering | Volume 118 | Number 3 | November 1994 | Pages 178-185
Technical Paper | doi.org/10.13182/NSE94-A19383
Articles are hosted by Taylor and Francis Online.
Electrical conductivities of weakly ionized nuclear plasmas were computed by numerically solving an electron Boltzmann equation. A pure 3He gas and 3He-Na gaseous mixtures were analyzed. The gases are ionized by fast ions (0.19-MeV tritons and 0.59-MeV protons), which are generated from in situ neutron-3He nuclear reactions. The results show that the electrical conductivity of the 3He-Na gaseous mixtures is higher than that of the pure helium gas because of the enhanced ionization of seeded sodium atoms by subexcitation electrons. This effect is not included in a standard Maxwellian model. An analytical formula of W values for gaseous mixtures was suggested to incorporate the effect of subexcitation electrons. The formula can be applied to analyze chemically complex systems.
