Study of Electromagnetic Ion-Cyclotron Instability in a Magnetoplasma

Pandey, R. S.; Singh, Dinesh

doi:10.2528/pierm10052501

Cited by 12 publications

(9 citation statements)

References 47 publications

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“…It shows that rather an increase in electron energy, more and more energy transfer from electrons to the discharge plasma species takes place. Under these conditions the kT e decreases and neutral gas temperature increases due to the existence of a balance between the total ionization events and the total particle losses to the plasma chamber walls [7,18]. The particle-wall recombination probability is different for different wall surfaces.…”

Section: Resultsmentioning

confidence: 99%

“…It consists of a set of different components. The nitrogen plasma is generated and sustained with 13.56 MHz RF source having 50 Ω resistance [5][6][7][8]. This RF source is connected across a water cooled spiral planar coil shaped electrode.…”

Section: Methodsmentioning

confidence: 99%

“…The discharge plasma parameters such as kT e , n e [5] and I io were evaluated as the function of input plasma parameters. In the present work which is an extension of our previous work, DC biased symmetric and asymmetric double Langmuir probes [6,7] are developed along with their necessary driving circuits. These probes are used to investigate 13.56 MHz RF inductively coupled nitrogen plasma to check its suitability for material processing.…”

Section: Introductionmentioning

confidence: 99%

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Symmetric and Asymmetric Double Langmuir Probes Characterization of Radio Frequency Inductivley Coupled Nitrogen Plasma

Naz¹,

Ghaffar²,

Rehman³

et al. 2011

PIER

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Abstract-The symmetric and asymmetric double Langmuir probe systems with their necessary driving circuits are developed for characterization of low pressure inductively coupled nitrogen plasma, generated and sustained with 13.56 MHz RF source and an automatic impedance matching network. First of all, the plasma parameters such as ion saturation current, electron temperature and electron number density are determined with symmetric double probe system at different input RF powers, filling gas pressures and radial distance from the plasma chamber wall. Then the electron temperature and electron energy probability function are determined with asymmetric double probe system at the centre of the discharge plasma chamber by changing the filling gas pressure and input RF power. It is observed that the electron temperature and electron number density increase with the increase in input RF power and radial distance but decreases with the increase in filling gas pressure. The electron energy probability function determined with asymmetric probe system evidently deviates from the Maxwellian, particularly at low filling gas pressures.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Symmetric and Asymmetric Double Langmuir Probes Characterization of Radio Frequency Inductivley Coupled Nitrogen Plasma

Naz¹,

Ghaffar²,

Rehman³

et al. 2011

PIER

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show abstract

“…Using Equations (5), (6) and the Bessel identity and performing the time integration, following the technique and method of Pandey and Singh [18,19], the perturbed distribution function is found after some lengthy algebraic simplifications as:…”

Section: Dispersion Relations and Growth Ratementioning

confidence: 99%

Generation of Low Frequency Electromagnetic Wave by Injection of Cold Electron for Relativistic and Non- Relativistic Subtracted Bi-Maxwellian Distribution With Perpendicular Ac Electric Field for Magnetosphere of Uranus

Pandey¹,

Kaur²

2012

PIER B

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Abstract-Effect of cold electron beam for Whistler mode waves have been studied for relativistic and non-relativistic subtracted biMaxwellian distribution in the presence of perpendicular AC electric field to magnetic field by using the method of characteristic solutions and kinetic approach. The detailed derivation and calculations has been done for dispersion relation and growth rate for magnetosphere of Uranus. Parametric analysis has been done by changing plasma parameters: thermal velocity, ac frequency, temperature anisotropy, etc.. The effect of AC frequency on the Doppler shifting frequency and comparative study of relativistic and non-relativistic effect on growth rate are analyzed. The new results using subtracted biMaxwellian distribution function are found and discussed in relation to a bi-Maxwellian distribution function. It is seen that the effective parameters for the generation of Whistler mode wave are not only the temperature anisotropy but also the relativistic factor, AC field frequency, amplitude of subtracted distribution and width of the losscone distribution function which has been discussed in result and discussion section.

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“…Most of DBDs can successfully be operated with high frequencies ranging from few kHz to few MHz [2,3]. These high frequency operations are necessary for production of metastable species which play a major role during the generation of discharge plasmas through penning ionization.…”

Section: Introductionmentioning

confidence: 99%

OPTICAL CHARACTERIZATION OF 50 Hz ATMOSPHERIC PRESSURE SINGLE DIELECTRIC BARRIER DISCHARGE PLASMA

Naz¹,

Ghaffar²,

Rehman³

et al. 2012

PIER M

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Abstract-A low frequency (50 Hz) dielectric barrier discharge (DBD) system with a single dielectric cover on copper coil anode is designed to generate and sustain the micro-discharge plasma which is very practical for material processing applications. The DBD system is powered by a high tension ac source consisting of a conventional step up transformer and variac. The dielectric barriers (quartz and glass) between the conducting electrodes appreciably influences the discharge plasma characterized by optical emission spectroscopy technique. Using intensity ratio method, the electron temperature and electron number density are determined from recorded spectra as function of ac input voltage, type and thickness of dielectric barrier and inter-electrode gap. It is observed that both the electron temperature and electron number density increase with the increase in ac input voltage and ε r / d ratio, while a decreasing trend is observed with increase in inter-electrode gap.

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Study of Electromagnetic Ion-Cyclotron Instability in a Magnetoplasma

Cited by 12 publications

References 47 publications

Symmetric and Asymmetric Double Langmuir Probes Characterization of Radio Frequency Inductivley Coupled Nitrogen Plasma

Symmetric and Asymmetric Double Langmuir Probes Characterization of Radio Frequency Inductivley Coupled Nitrogen Plasma

Generation of Low Frequency Electromagnetic Wave by Injection of Cold Electron for Relativistic and Non- Relativistic Subtracted Bi-Maxwellian Distribution With Perpendicular Ac Electric Field for Magnetosphere of Uranus

OPTICAL CHARACTERIZATION OF 50 Hz ATMOSPHERIC PRESSURE SINGLE DIELECTRIC BARRIER DISCHARGE PLASMA

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