Density and temperature measurements of pulsed plasma produced inside a curved vacuum chamber

Sasini, N.; Paikaray, R.; Dinda, L; Sahoo, G.; Ghosh, Joydeep; Sanyasi, A. K.

doi:10.1088/1742-6596/208/1/012132

J. Phys.: Conf. Ser.

2010

DOI: 10.1088/1742-6596/208/1/012132

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Density and temperature measurements of pulsed plasma produced inside a curved vacuum chamber

N. Sasini

R. Paikaray

L Dinda

et al.

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Cited by 2 publications

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“…Advances in Mechatronics and Control Engineering measured using a single Langmuir probe by Mr. N Sasini in our plasma chamber [30]. The triple Langmuir probe solves the problem of this voltage sweep allowing for the instantaneous measurement of electron temperature (T e ) and density (n e ), unlike previous method where tedious curve fitting was required.…”

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confidence: 99%

A Compact Plasma System for Experimental Study

Sahoo

Paikaray

Samantaray

et al. 2013

AMM

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A compact plasma system is set up at Ravenshaw University, India. The plasma system consists of a curved vacuum chamber which is nothing but a part of a toroid (θ=700) having minor radius, r= 0.3 m and major radius, R= 0.5 m, vacuum system, electromagnet, gas injected washer stacked plasma gun to produce plasma blobs/filaments, pulse forming network to energise plasma gun, diagnostic tools like electric probes, magnetic probes, spectrometer, high speed CCD camera, digital pulse/delay generator to synchronise the diagnostic tools. A pair of copper coil is wound over the chamber and capacitive pulse is fed to the coil to produce non-uniform magnetic field inside the chamber. The gas injected washer stacked plasma gun is a mono-anode - multi cathode system having five cathodes made up of brass and an anode made up of copper. The gun impedance is ~ 15 Ω. The pulse forming network (PFN) is Guillemin E type which consists of capacitors having equal capacitance 5.5 μF and inductors having equal inductances 1.5 μH. The pulse width of the PFN is ~ 7.6 μs for a seven stage network, as tested with known resistive circuit. Magnetic probes are designed and calibrated using a Helmholtz coil to map the radial magnetic field profile of the plasma chamber. Electric probes like Langmuir triple probe, velocity probes are designed to measure plasma parameters like blob velocity, density, temperature etc. Emission spectroscopy method is used to identify charged species inside the plasma. High speed CCD camera is used to interpret the structure of the plasma. A digital pulse/trigger generator is used to synchronise the CCD, spectrometer and switching thyristor etc. Preliminary results are also reported.

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confidence: 99%

A Compact Plasma System for Experimental Study

Sahoo

Paikaray

Samantaray

et al. 2013

AMM

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Study of pulsed plasma across a spatial length inside curved chamber using cylindrical double probe

Sasini¹,

Paikaray

Sahoo

et al. 2012

Indian J Phys

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Density and temperature measurements of pulsed plasma produced inside a curved vacuum chamber

Cited by 2 publications

References 7 publications

A Compact Plasma System for Experimental Study

A Compact Plasma System for Experimental Study

Study of pulsed plasma across a spatial length inside curved chamber using cylindrical double probe

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