干旱区生态环境知识资源中心(Arid): Studies of thermal energy confinement scaling in PDX plasmas: D/sup 0/. -->. H/sup +/ limiter discharges

Arid

DOI	10.2172/6800887
报告编号	PPPL-2109
来源ID	OSTI_ID: 6800887
	Studies of thermal energy confinement scaling in PDX plasmas: D/sup 0/. -->. H/sup +/ limiter discharges
	Kaye, S.M.; Goldston, R.J.; Bell, M.; Bol, K.; Bitter, M.; Fonck, R.; Grek, B.; Hawryluk, R.J.; Johnson, D.; Kaita, R.
英文摘要	Experiments were performed on the PDX tokamak to study plasma heating and ..beta.. scaling with higher power, near-perpendicular neutral beam injection. The data taken during these experiments were analyzed using a time-dependent data interpretation code (TRANSP) to study the transport and thermal confinement scaling over a wide range of plasma parameters. This study focuses on results from experiments with D/sup 0/ injection into H/sup +/ plasmas using graphite rail limiters, a = 40 to 44 cm, R = 143 cm, I/sub p/ = 200 to 480 kA, B/sub T/ = 0.7 to 2.2 T, and typically anti n/sub e/ = 2.5 to 4.2 x 10/sup 13/ cm/sup -3/. The results of this study indicate that for both ohmic and neutral beam heated discharges the energy flow out of the plasma is dominated by anomalous electron losses, attributed to electron thermal conduction. The ion conduction losses are well described to electron thermal conduction. The ion conduction losses are well described by neoclassical theory; however, the total ion loss influences the power balance significantly only at high toroidal fields and high plasma currents.
出版年	1984
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; PDX DEVICES ; BETA RATIO ; PLASMA CONFINEMENT ; DEUTERIUM ; ENERGY BALANCE ; HYDROGEN ; LIMITERS ; NEUTRAL ATOM BEAM INJECTION ; PLASMA HEATING ; SCALING LAWS ; BEAM INJECTION ; CLOSED PLASMA DEVICES ; CONFINEMENT ; ELEMENTS ; HEATING ; HYDROGEN ISOTOPES ; ISOTOPES ; LIGHT NUCLEI ; NONMETALS ; NUCLEI ; ODD-ODD NUCLEI ; STABLE ISOTOPES ; THERMONUCLEAR DEVICES ; TOKAMAK DEVICES 700101* -- Fusion Energy-- Plasma Research-- Confinement, Heating, & Production
URL	http://www.osti.gov/scitech/servlets/purl/6800887
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/263609
推荐引用方式 GB/T 7714	Kaye, S.M.,Goldston, R.J.,Bell, M.,et al. Studies of thermal energy confinement scaling in PDX plasmas: D/sup 0/. -->. H/sup +/ limiter discharges,1984.