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Nuclear Science and Engineering
Fusion Science and Technology
Consultant recommends subsidies for Exelon plants
A research and consulting firm hired by Illinois governor J. B. Pritzker’s administration to scrutinize the financial fitness of Exelon’s Byron and Dresden nuclear plants approves of limited state subsidies for the facilities, according to a redacted version of the firm’s report made available yesterday.
N. Pomphrey, A. Boozer, A. Brooks, R. Hatcher, S. P. Hirshman, S. Hudson, L. P. Ku, E. A. Lazarus, H. Mynick, D. Monticello, M. Redi, A. Reiman, M. C. Zarnstorff, I. Zatz
Fusion Science and Technology | Volume 51 | Number 2 | February 2007 | Pages 181-202
Technical Paper | dx.doi.org/10.13182/FST07-A1298
Articles are hosted by Taylor and Francis Online.
The National Compact Stellarator Experiment (NCSX) will study the physics of low-aspect ratio, high-, quasi-axisymmetric stellarators. To achieve the scientific goals of the NCSX mission, the device must be capable of supporting a wide range of variations in plasma configuration about a reference baseline equilibrium. We demonstrate the flexibility of NCSX coils to support such configuration variations and demonstrate the robustness of performance of NCSX plasmas about reference design values of the plasma current Ip, , and profile shapes. The robustness and flexibility calculations make use of free-boundary plasma equilibrium constructions using a combination of nonaxisymmetric modular coils and axisymmetric toroidal and poloidal field coils. The primary computational tool for the studies is STELLOPT, a free-boundary optimization code that varies coil currents to target configurations with specific physics properties.