Electron beam driven lower hybrid waves in a dusty plasma

Journal Article · Wed May 15 00:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4803506· OSTI ID:22218638

Prakash, Ved; Vijayshri, ^[1]; Sharma, Suresh C. ^[2]; Gupta, Ruby ^[3]

---

1. School of Sciences, Indira Gandhi National Open University, Maidan Garhi, New Delhi-110 068 (India)
2. Department of Applied Physics, Delhi Technological University, Shahbad Daulatpur, Bawana Road, Delhi-110 042 (India)
3. Department of Physics, Swami Shraddhanand College, University of Delhi, Alipur, Delhi-110 036 (India)

An electron beam propagating through a magnetized dusty plasma drives electrostatic lower hybrid waves to instability via Cerenkov interaction. A dispersion relation and the growth rate of the instability for this process have been derived taking into account the dust charge fluctuations. The frequency and the growth rate of the unstable wave increase with the relative density of negatively charged dust grains. Moreover, the growth rate of the instability increases with beam density and scales as the one-third power of the beam density. In addition, the dependence of the growth rate on the beam velocity is also discussed.

• OSTI ID: 22218638
• Journal Information: Physics of Plasmas, Vol. 20, Issue 5; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM-PLASMA SYSTEMS
DISPERSION RELATIONS
DUSTS
ELECTRON BEAMS
FLUCTUATIONS
LOWER HYBRID CURRENT DRIVE
LOWER HYBRID HEATING
PLASMA DENSITY
PLASMA INSTABILITY
PLASMA WAVES