Study on H-mode access at low density with lower hybrid current drive and lithium-wall coatings on the EAST superconducting tokamak

2011 ◽  
Vol 51 (7) ◽  
pp. 072001 ◽  
Author(s):  
G.S. Xu ◽  
B.N. Wan ◽  
J.G. Li ◽  
X.Z. Gong ◽  
J.S. Hu ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Low Density ◽  
Lower Hybrid Current Drive ◽  
Superconducting Tokamak

scholarly journals Study of off-axis current drive using EC top-launch in KSTAR

2019 ◽  
Vol 203 ◽  
pp. 02003
Author(s):  
Young-soon Bae
Keyword(s):  
Operation Research ◽  
Essential Element ◽  
Current Drive ◽  
Electron Trapping ◽  
Lower Hybrid ◽  
Low Density ◽  
Simulation Studies ◽  
High Current ◽  
High Efficient ◽  
Lower Hybrid Current Drive

The off-axis current drive using electron cyclotron (EC) wave is typically very low due to the low density and temperature and electron trapping effect when it is launched from outside midplane. However, the heating and current drive by EC wave is being regarded as a essential element as an off-axis current drive source together with lower hybrid current drive (LHCD) for advanced tokamak operation research in KSTAR in future. Therefore, the reliable and high efficient ECCD using top launch has been studied for two different launch schemes of down-shift and up-shift resonance with various EC frequencies which will be available in the future KSTAR ECRH system. The ray tracing (GENRAY) simulation studies show that a broad ECCD profile peaked off axis is obtained with a high current drive efficiency for both schemes. It is almost twice as high as that of the outside midplane launch for the fundamental O-mode EC wave.

Lower hybrid current drive experiments and improved performance on the HT-7 superconducting tokamak

1999 ◽  
Vol 39 (11Y) ◽  
pp. 1769-1774 ◽  
Author(s):  
Guangli Kuang ◽  
Yuexiou Liu ◽  
Jiafang Shan ◽  
Weihua Xu ◽  
Xiangqin Zhang ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Lower Hybrid Current Drive ◽  
Improved Performance ◽  
Superconducting Tokamak

Lower Hybrid Current Drive Effects on HT-7 Superconducting Tokamak

1998 ◽  
Vol 15 (6) ◽  
pp. 435-437 ◽  
Author(s):  
Guang-li Kuang ◽  
Wei-hua Xu ◽  
Xiang-qin Zhang ◽  
Jia-fang Shan ◽  
Yue-xiu Liu ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Lower Hybrid Current Drive ◽  
Superconducting Tokamak

Sawtooth Activity during Lower Hybrid Current Drive Experiment in HT-7 Superconducting Tokamak

2000 ◽  
Vol 2 (2) ◽  
pp. 227-234 ◽  
Author(s):  
Shen Wei-ci ◽  
Kuang Guang-li ◽  
Liu Yue-xiu ◽  
Liu Deng-cheng ◽  
Zheng Guang-hua ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Lower Hybrid Current Drive ◽  
Superconducting Tokamak

Lower hybrid current drive experiments with graphite limiters in the HT-7 superconducting tokamak

2006 ◽  
Vol 350 (5-6) ◽  
pp. 386-391 ◽  
Author(s):  
J LIU ◽  
X GAO ◽  
L HU ◽  
M ASIF ◽  
Z CHEN ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Lower Hybrid Current Drive ◽  
Superconducting Tokamak
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