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The SINP- Tokamak : Major radius =30 cm, Minor radius= 7.5 cm, Magnetic field = 2 T,

P L A S M A P H Y S I C S D I V I S I O N. The SINP- Tokamak : Major radius =30 cm, Minor radius= 7.5 cm, Magnetic field = 2 T, current =75 kA , Plasma duration = 20-30 ms. Physics Issues: Studies on turbulence, transport, runaway electrons, Geodesic Acoustic Modes,

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The SINP- Tokamak : Major radius =30 cm, Minor radius= 7.5 cm, Magnetic field = 2 T,

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  1. P L A S M A P H Y S I C S D I V I S I O N The SINP- Tokamak: Major radius =30 cm, Minor radius= 7.5 cm, Magnetic field = 2 T, current =75 kA , Plasma duration = 20-30 ms. Physics Issues: Studies on turbulence, transport, runaway electrons, Geodesic Acoustic Modes, Disruption control experiments by means of electrode biasing.

  2. P L A S M A P H Y S I C S D I V I S I O N Typical plasma discharge disruption seen at 12 ms. Temporal variation of (a) plasma current , (b) loop voltage , (c) intensity of H-alpha line, (d) electrode current, and (e) applied bias voltage. Without bias voltage (red line) and with bias voltage at 70V (black line). Bias Voltage suppresses disruption

  3. Magnetized Plasma Linear Experimental (MaPLE) Device P L A S M A P H Y S I C S D I V I S I O N • Study of Plasma instabilities, wave propagation etc and their nonlinear behavior is Important for understanding fusion plasma behavior, planetary magnetosphere and Space. • It is difficult to study them in tokamak and other fusion devices in Controlled manner due to geometrical complexities . • MaPLE device made indigenously at laboratory of Plasma Physics Division for studying them in controlled manner. • Recently a very important result on drift wave studies (very important phenomena in fusion devices) • in Maple device published (Ref: SubirBiswas, D. Basu, R. Pal and N. Chakrabarti, Phys. Rev. Lett. 111, 1115004 (2013))

  4. P L A S M A P H Y S I C S D I V I S I O N Power Spectra of Floating potential fluctuations at different radial locations showing three distinct frequency regions of power spectrum

  5. P L A S M A P H Y S I C S D I V I S I O N The Double Layer experiment Study of Double Layers using RF plasma produced at 13.56 kHz expandingIn a diverging magnetic field; Two dimensional potential contours showing double layers, secondary lobes and field aligned electric fields.

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