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NNSA awards BWXT $1.5B defense fuels contract
The Department of Energy’s National Nuclear Security Administration has awarded BWX Technologies a contract valued at $1.5 billion to build a Domestic Uranium Enrichment Centrifuge Experiment (DUECE) pilot plant in Tennessee in support of the administration’s efforts to build out a domestic supply of unobligated enriched uranium for defense-related nuclear fuel.
Shih–Hai Li, Ren–Chu Chin
Fusion Science and Technology | Volume 20 | Number 4 | December 1991 | Pages 868-872
Magnetic Fusion Reactors/Beam-Driven Systems | doi.org/10.13182/FST91-A11946951
Articles are hosted by Taylor and Francis Online.
A L–mode scaling law of global energy confinement time in ion cyclotron resonance heating (ICRH) is proposed in this paper. The scaling is based on 292 observations from tokamaks PLT, JET, ASDEX, TEXTOR, JFT–2M and JIPP T–IIU. The regression analysis reveals the scaling being of the form: τE α a-0·18 R1·27 IP0·98 BT0·10 K0·20 n̄e0·12 Ptot-0·51. Comparision with other scaling laws and fitting the scaling law to the theoretical constraint model have shown many physical phenomena of ICRH wave damping mechanism. To reach the ignition condition, some modifications of experimental technique and tokamak configuration are needed to enhance the energy confinement time.
