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CURRENT DRIVE AND PRESSURE PROFILE MODIFICATION WITH ELECTRON CYCLOTRON POWER IN DIII-D QUIESCENT DOUBLE BARRIER EXPERIMENTS.

P. GOHILRJ. GROEBNERMA. MAKOWSKITA. CASPERKH. BURRELLWP. WESTCM. GREENFIELDRJ. JAYAKUMAREJ. DOYLETL. RHODES

出版	United States. Department of Energy. Oakland Operations Office, 2003
URL	http://books.google.com.hk/books?id=wJPZjwEACAAJ&hl=&source=gbs_api

註釋OAK-B135 High confinement mode (H-mode) operation is a leading scenario for burning plasma devices due to its inherently high energy-confinement characteristics. The quiescent H-mode (QH-mode) offers these same advantages with the additional attraction of more steady edge conditions where the highly transient power loads due to edge localized mode (ELM) activity is replaced by the steadier power and particle losses associated with an edge harmonic oscillation (EHO). With the addition of an internal transport barrier (ITB), the capability is introduced for independent control of both the edge conditions and the core confinement region giving potential control of fusion power production for an advanced tokamak configuration. The quiescent double barrier (QDB) conditions explored in DIII-D experiments exhibit these characteristics and have resulted in steady plasma conditions for several confinement times ({approx} 26 {tau}{sub E}) with moderately high stored energy, {beta}{sub N}H{sub 89} {approx} 7 for 10 {tau}{sub E}.