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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.
Abhijit Sen
Fusion Science and Technology | Volume 59 | Number 3 | April 2011 | Pages 526-538
Lecture | Fourth ITER International Summer School (IISS2010) | doi.org/10.13182/FST11-A11694
Articles are hosted by Taylor and Francis Online.
The creation of large-sized magnetic islands through excitation of neoclassical tearing modes (NTMs) and the concommitant degradation of energy confinement is a major concern for ITER. The basic physical mechanisms governing the dynamics of this instability are introduced, and important experimental observations and techniques of controlling or suppressing these modes are briefly reviewed. The effects of plasma rotation on the excitation threshold and saturated island sizes of NTMs, as observed in many recent experiments, and their present understanding as obtained from model analytical and numerical simulations are discussed.