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Volume 67 (1992)
- Issue 6 Pages 485-
- Issue 5 Pages 399-
- Issue 4 Pages 310-
- Issue 3 Pages 215-
- Issue 2 Pages 108-
- Issue 1 Pages 12-
Volume 67, Issue 4
Displaying 1-5 of 5 articles from this issue
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Ion Cyclotron Range of Frequency (ICRF)Haruyuki Kimura1992 Volume 67 Issue 4 Pages 310-334
Published: April 25, 1992
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSThe present status of development of ICRF antenna for heating and current drive in fusion devices is reviewed, aiming at clarifying technical subjects remained for further development toward fusion experimental reactor, i.e.ITER.Technical problems and their solutions are described for the use of the loop antenna in large tokamaks.Technical issues peculiar to the current drive antenna are discussed.Recent results on research of impurity problem during ICRF power injection are presented which clarify the mechanism of impurity release and possible countermeasures to overcome this problem totally.View full abstractDownload PDF (2475K) -
[in Japanese], [in Japanese]1992 Volume 67 Issue 4 Pages 335
Published: April 25, 1992
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSDownload PDF (149K) -
Tadao Honzawa1992 Volume 67 Issue 4 Pages 336-343
Published: April 25, 1992
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSExperimental studies on various types of nonlinear wave phenomena in ion-beam-plasma systems are reviewed.The phenomena include effects of ion-beams on solitons, excitation of multimode solitons, amplitude oscillations, frequency shifts, decay and explosive instabilities and the self-modulation of waves due to modulational instability.View full abstractDownload PDF (699K) -
Nobuyuki Inoue, Yuichi Ogawa1992 Volume 67 Issue 4 Pages 344-351
Published: April 25, 1992
Released on J-STAGE: October 22, 2010
JOURNAL FREE ACCESSTokamak D-T power reactor with day-long operation is investigated, where plasma current is driven inductively.Thereby the high power multiplication factor (typically Q>1, 000) is attained easily.For day-long operation only with the use of inductive current drive, the large plasma major radius is necessary to provide sufficient magnetic flux in the Ohmic transformer.Parameters of tokamak reactor for day-long operation are typically major radius 12m, minor radius 1.5m with elongation ratio1.6 and triangularity0.5, toroidal mag netic field12.5T, and plasma current 8.7MA.Plasma volume is comparable to the current-driven reactors, such as SSTR and ARIES in spite of large major radius, because the aspect ratio is relatively high.View full abstractDownload PDF (726K) -
Yukitoshi Miura, Hiroshi Tamai, Norio Suzuki, Masahiro Mori, Toshiaki ...1992 Volume 67 Issue 4 Pages 352-360
Published: April 25, 1992
Released on J-STAGE: June 02, 2011
JOURNAL FREE ACCESSAn offset linear scaling for the H-mode confinement time is examined based on single parameter scans on the JFT-2M experiment.Regression study is done for various devices with open divertor configuration such as JET, D III-D, JFT-2M.The scaling law of the thermal energy is given in the MKSA unit as
_??_
where R is the major radius, Ip is the plasma current, BT is the toroidal magnetic field, A is the average mass number of plasma and neutral beam particles, and P is the heating power, This fitting has a similar root mean square error (RMSE) compared to the power law scaling.The result is also compared with the H-mode in other configurations.The W th of closed divertor Hmode on ASDEX shows a little better values than that of open divertor H-modeView full abstractDownload PDF (897K)
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