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Murakami, Masanori*; Park, J. M.*; Giruzzi, G.*; Garcia, J.*; Bonoli, P.*; Budny, R. V.*; Doyle, E. J.*; Fukuyama, Atsushi*; Hayashi, Nobuhiko; Honda, Mitsuru; et al.
Proceedings of 23rd IAEA Fusion Energy Conference (FEC 2010) (CD-ROM), 8 Pages, 2011/03
Giruzzi, G.*; Park, J. M.*; Murakami, M.*; Kessel, C. E.*; Polevoi, A.*; Sips, A. C. C.*; Artaud, J. F.*; Basiuk, V.*; Bonoli, P.*; Budny, R. V.*; et al.
Proceedings of 22nd IAEA Fusion Energy Conference (FEC 2008) (CD-ROM), 8 Pages, 2008/10
Gormezano, C.*; Sips, A. C. C.*; Luce, T. C.*; Ide, Shunsuke; Becoulet, A.*; Litaudon, X.*; Isayama, Akihiko; Hobirk, J.*; Wade, M. R.*; Oikawa, Toshihiro; et al.
Nuclear Fusion, 47(6), p.S285 - S336, 2007/06
Times Cited Count：315 Percentile：75.44(Physics, Fluids & Plasmas)This paper reviews recent world-wide progress in physics research towards International Thermonuclear Reactor (ITER). This chaper descrives on steady state operation with emphasis on: integrated scenarios, review of presently developed experimental scenarios, actuators for steady state operation, specific control issues to steady state operation, simulation of ITER steady-state and hybrid scenarios.
Oikawa, Toshihiro; Shimada, Michiya; Polevoi, A. R.*; Naito, Osamu; Bonoli, P. T.*; Hayashi, Nobuhiko; Kessel, C. E.*; Ozeki, Takahisa
Proceedings of 21st IAEA Fusion Energy Conference (FEC 2006) (CD-ROM), 7 Pages, 2007/03
The current drive capability of lower hybrid waves is assessed for an ITER steady state scenario using a relativistic, one-dimensional Fokker-Planck code and a toroidal ray tracing code. The present LH launcher design provides a current drive efficiency of 1.8
10
AW
m
and an off-axis profile of the driven current that is fovarable for a reversed magnetic shear configuration. Possible optimizations in the LH power spectrum are investigated. Neutral beam current drive (NBCD) is investigated with theoretical codes employing different approaches. An NBCD code employing the bounce-averaged Fokker-Planck equation to include orbit effects in a toroidal system shows a good agreement with an orbit following Monte-Carlo code.
Bonoli, P. T.*; Harvey, R. W.*; Kessel, C. E.*; Imbeaux, F.*; Oikawa, Toshihiro; Schneider, M.*; Barbato, E.*; Decker, J.*; Giruzzi, G.*; Forest, C. B.*; et al.
Proceedings of 21st IAEA Fusion Energy Conference (FEC 2006) (CD-ROM), 8 Pages, 2007/03
no abstracts in English
Oikawa, Toshihiro; Polevoi, A. R.*; Bonoli, P. T.*; Campbell, D. J.*; Henderson, M.*
no journal, ,
We have been developing physics models and computational codes for heating and current drive of NB, EC and LH. A NB code has been developed in JAEA and on the Monte-Carlo scheme with employing the Suzuki model for the ionization process, which are based on the most recent atomic data. An EC code, also developed in JAEA, is based on the ray-tracing and quasi-linear Fokker-Planck equation. A LH code, which was introduced from MIT, employs a 2D equivalent collision operator in the 1D Fokker-Planck code. Then the LH code shows a good agreement with fully 2D codes. A design changes of the NB and its injection port in 2007 made the range of the NB injection angle narrower than in the EDA2001, then the NBCD profile shifts inward by a minor radius of 
0.05. The LH spectrum has to have a relatively high value of 
because of the accessibility condition. With this spectrum, LHCD is 0.83MA in the reference steady-state scenario for a 20MW injection from an equatorial port.
Oikawa, Toshihiro; Polevoi, A. R.*; Bonoli, P. T.*; Campbell, D. J.*; Henderson, M.*; Hamamatsu, Kiyotaka; Tani, Keiji*
no journal, ,
We have been developing physics models and computational codes for heating and current drive of NB, EC and LH. A NB code has been developed in JAEA and on the Monte-Carlo scheme with employing the Suzuki model for the ionization process, which are based on the most recent atomic data. An EC code, also developed in JAEA, is based on the ray-tracing and quasi-linear Fokker-Planck equation. A LH code, which was introduced from MIT, employs a 2D equivalent collision operator in the 1D Fokker-Planck code. Then the LH code shows a good agreement with fully 2D codes. A design changes of the NB and its injection port in 2007 made the range of the NB injection angle narrower than in the EDA2001, then the NBCD profile shifts inward by a minor radius of 0.05. The LH spectrum has to have a relatively high value of because of the accessibility condition. With this spectrum, LHCD is 0.83MA in the reference steady-state scenario for a 20MW injection from an equatorial port.
Oikawa, Toshihiro; Polevoi, A. R.*; Bonoli, P. T.*; Tani, Keiji*; Campbell, D. J.*
no journal, ,
We have been developing physics models and computational codes for heating and current drive of NB and LH. A NB code has been developed in JAEA and on the Monte-Carlo scheme with employing the Suzuki model for the ionization process, which are based on the most recent atomic data. A LH code has been introduced from MIT. We have performed a physics assessment of the 3rd NBI, which is an option for the future HCD upgrade. Higher plasma rotation favorable to MHD stabilities is expected. On the other hand, the NBCD is too concentrated around the plasma center, which is unfavorable for the steady-state operation with the reversed magnetic shear configuration. Another concern is energetic particle driven modes due to large pressure of the NB ion in the center. The LH spectrum has to have a relatively high value of because of the accessibility condition. With this spectrum, LHCD is 0.83MA in the reference steady-state scenario for a 20MW injection from an equatorial port.
