Effect of Rotational Transform and Magnetic Shear on Confinement of Stellarators
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概要
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This work surveys the main results concerning the effects of the rotational transform, its low order rational values and its shear on the confining properties of low shear devices. It is meant to promote further studies aimed at clarifying their role in future, reactor grade, devices. 1-D transport studies are encouraged as the effects of rotational transform on confinement appear to be of local nature. Low order rational values of the rotational transform are associated with both degraded and improved confinement, being the magnetic shear a plausible cause for the difference. Very small shear values are enough to avoid deletereous effects of the low order rationals in high rotational transform discharges, but further experiments are needed to elucidate whether there is a threshold shear that depends on the rotational transform itself.
著者
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YAMADA Hiroshi
National Insitute for Fusion Science
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WATANABE Kiyomasa
National Insitute for Fusion Science
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YOKOYAMA Masayuki
National Insitute for Fusion Science
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TRIBALDOS Victor
CIEMAT, Laboratorio Nacional de Fusion, EURATOM-CIEMAT
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ASCASIBAR Enrique
CIEMAT, Laboratorio Nacional de Fusion, EURATOM-CIEMAT
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Tribaldos Victor
Ciemat
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LÓPEZ-BRUNA Daniel
CIEMAT, Madrid 28040, Spain
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CASTEJÓN Francisco
CIEMAT, Madrid 28040, Spain
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VARGAS Víctor
CIEMAT, Madrid 28040, Spain
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MAASSBERG Henning
Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald 17491, Germany
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BEIDLER Craig
Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald 17491, Germany
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BRAKEL Rudolf
Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald 17491, Germany
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DINKLAGE Andreas
Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald 17491, Germany
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GEIGER Joachim
Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald 17491, Germany
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HARRIS Jeffrey
Oak Ridge National Laboratory, Oak Ridge, TN 37831-6169, USA
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KUS Andreas
Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald 17491, Germany
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MIZUUCHI Tohru
Kyoto University, Uji 611-0011, Japan
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MURAKAMI Sadayoshi
Kyoto University, Uji 611-0011, Japan
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PREUSS Roland
Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald 17491, Germany
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SANO Fumimichi
Kyoto University, Uji 611-0011, Japan
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STROTH Ulrich
Institut für Plasmaforschung, Universität Stuttgart, Stuttgart 70569, Germany
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SUZUKI Yasuhiro
National Institute for Fusion Science, Toki 509-5292, Japan
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TALMADGE Joseph
University of Wisconsin, Madison, WI 53706-1481, USA
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TURKIN Yuri
Australian National University, Canberra ACT 0200, Australia
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Ascasibar Enrique
Ciemat Laboratorio Nacional De Fusion Euratom-ciemat
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OKAMURA Shoichi
National Institute for Fusion Science
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Suzuki Yasuhiro
National Agriculture And Food Res. Organization (naro) National Inst. Of Crop Sci.
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Beidler Craig
Max-planck-institut Fuer Plasmaphysik Euratom Ass
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MAASSBERG Henning
Max-Planck Institute für Plasma Physik, D-17491, Greifswald, Germany
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DINKLAGE Andreas
Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald 17491, Germany
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KUS Andreas
Max-Planck-Institut für Plasmaphysik, EURATOM Association, Greifswald 17491, Germany
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BEIDLER Craig
Max-Planck Institute für Plasma Physik, D-17491, Greifswald, Germany
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MURAKAMI Sadayoshi
Kyoto University, Kyoto 606-8501, Japan
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HARRIS Jeffrey
Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
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