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Nuclear Science and Engineering
Fusion Science and Technology
Argonne assists advanced reactor development with award-winning safety software
The development of modern nuclear reactor technologies relies heavily on complex software codes and computer simulations to support the design, construction, and testing of physical hardware systems. These tools allow for rigorous testing of theory and thorough verification of design under various use or transient power scenarios.
S. W. Haan, D. S. Clark, S. H. Baxamusa, J. Biener, L. Berzak Hopkins, T. Bunn, D. A. Callahan, L. Carlson, T. R. Dittrich, M. J. Edwards, B. A. Hammel, A. Hamza, D. E. Hinkel, D. D. Ho, D. Hoover, W. Hsing, H. Huang, O. A. Hurricane, M. A. Johnson, O. S. Jones, A. L. Kritcher, O. L. Landen, J. D. Lindl, M. M. Marinak, A. J. MacKinnon, N. B. Meezan, J. Milovich, A. Nikroo, J. L. Peterson, P. Patel, H. F. Robey, J. D. Salmonson, V. A. Smalyuk, B. K. Spears, M. Stadermann, S. V. Weber, J. L. Kline, D. C. Wilson, A. N. Simakov, A. Yi
Fusion Science and Technology | Volume 70 | Number 2 | August-September 2016 | Pages 121-126
Technical Paper | doi.org/10.13182/FST15-244
Articles are hosted by Taylor and Francis Online.
Experiments and analysis in the 3 years since the 2012 Target Fabrication Meeting have resulted in significant improvement in understanding of the requirements for high-performance layered implosions. Three issues have been identified that significantly degrade the performance of the implosions as they were originally configured for National Ignition Facility experiments: capsule support system, time-dependent radiation asymmetry, and transverse oxygen nonuniformity in the glow discharge polymer (GDP) ablator. Analyses suggest that the shortfalls in these three areas can explain the degraded performance of the National Ignition Campaign implosions. We present the status of work toward curing these three problems in the standard GDP ablator/gold hohlraum configuration as they affect target fabrication priorities. We also summarize the prospects for alternate ablators that might reduce these degradation mechanisms.