Kinetic theory of effect of dust charge fluctuations on the parametric decay of lower hybrid wave instability by relativistic runaway electrons in tokamak

2021 ◽  
Vol 28 (4) ◽  
pp. 043701
Author(s):  
Jyotsna Sharma ◽  
Suresh C. Sharma ◽  
Ajay Gahlot
Keyword(s):  
Kinetic Theory ◽  
Lower Hybrid ◽  
Runaway Electrons ◽  
Hybrid Wave ◽  
Wave Instability ◽  
Lower Hybrid Wave ◽  
Charge Fluctuations ◽  
Parametric Decay ◽  
Dust Charge ◽  
Dust Charge Fluctuations

Effect of dust charge fluctuations on upper hybrid wave instabilities in magnetized dusty plasma

2014 ◽  
Vol 32 ◽  
pp. 1460350 ◽  
Author(s):  
Jyotsna Sharma ◽  
Ajay Gahlot ◽  
Suresh C. Sharma ◽  
V. K. Jain
Keyword(s):  
Growth Rate ◽  
Dusty Plasma ◽  
Unstable Wave ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Charge Fluctuations ◽  
Electrostatic Wave ◽  
Dust Charge ◽  
Magnetized Dusty Plasma ◽  
Dust Charge Fluctuations

The decay instability of an upper hybrid electrostatic wave into an upper hybrid sideband wave and lower hybrid wave is studied in magnetized dusty plasma. A local theory of this process has been developed. The growth rate and mode frequencies of the unstable wave were evaluated based on existing dusty plasma parameters and it is found that the unstable mode frequency and growth rate increases with δ (ion-to-electron density ratio) in the presence and absence of dust charge fluctuations in addition to dust dynamics.

Observation of Parametric Decay of a Pumping Wave in Lower Hybrid Wave Heating and Current Drive Experiments at the FT-2 Tokamak

2019 ◽  
Vol 45 (12) ◽  
pp. 1134-1141 ◽  
Author(s):  
V. V. D’yachenko ◽  
A. N. Konovalov ◽  
A. Yu. Stepanov ◽  
A. B. Altukhov ◽  
E. Z. Gusakov ◽  
...  
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Parametric Decay ◽  
Wave Heating

Quasimode decay of a lower-hybrid wave in a two-electron-temperature plasma

1996 ◽  
Vol 56 (2) ◽  
pp. 237-249
Author(s):  
A. Sudarshan ◽  
S. K. Sharma
Keyword(s):  
Growth Rate ◽  
Electron Temperature ◽  
Decay Channel ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Temperature Plasma ◽  
Parametric Decay ◽  
Cylindrical Plasma ◽  
Ion Cyclotron

We study the quasimode decay of a lower-hybrid wave and a damped ion cyclotron wave in a plasma having two kinds of electrons. This decay channel is also investigated for a cylindrical plasma. The behaviour of the threshold and growth rate with variations in Tn/Tc and non/noc are studied, and a comparison is made with previous results. Our results show that the growth rate and the threshold for the onset of parametric decay are influenced by the presence of the second electron species.

scholarly journals Parametric decay instabilities of lower hybrid wave current drive on CFETR

2020 ◽  
Author(s):  
T. T. Zhou ◽  
N. Xiang ◽  
J. L. Chen ◽  
C. Y. Gan ◽  
G. Z. Jia
Keyword(s):  
Current Drive ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Lower Hybrid Wave ◽  
Parametric Decay

scholarly journals Runaway electrons behaviors during ion cycolotron range of frequency and lower hybrid wave plasmas in the HT-7 Tokamak

2010 ◽  
Vol 59 (10) ◽  
pp. 7175
Author(s):  
Lu Hong-Wei ◽  
Hu Li-Qun ◽  
Zhou Rui-Jie ◽  
Xu Ping ◽  
Zhong Guo-Qiang ◽  
...  
Keyword(s):  
Lower Hybrid ◽  
Runaway Electrons ◽  
Hybrid Wave ◽  
Lower Hybrid Wave

Dust-lower-hybrid drift instabilities with dust charge fluctuations in an inhomogeneous dusty magnetoplasma

2004 ◽  
Vol 70 (2) ◽  
Author(s):  
M. Salimullah ◽  
A. M. Rizwan ◽  
M. Nambu ◽  
H. Nitta ◽  
P. K. Shukla
Keyword(s):  
Lower Hybrid ◽  
Charge Fluctuations ◽  
Dust Charge ◽  
Dust Charge Fluctuations
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