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Author(s):
U. Stroth, M. Murakami, R.A. Dory, H. Yamada, S. Okamura, F. Sano and T. Obiki
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Title:
Energy Confinement Scaling from the International Stellarator Database
Date of publication:
Sep. 1995
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Key words:
stellarator, heliotron/torsatron, energy confinement time, scaling, database
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Abstract:
An international stellarator database on global energy confinement is presented comprising data from the ATF, CHS and Heliotron E heliotron/torsatrons and the W7-A and W7-AS shearless stellarators. Regression expressions for the energy confinement time are given for the individual devices and the combined dataset. A comparison with tokamak L mode confinement is discussed on the basis of various scaling expressions. In order to make this database available to interested colleagues, the structure of the database and the parameter list are explained in detail. More recent confinement results incorporating data from enhanced confinement regimes such as H mode are reported elsewhere.
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