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  • 1
    Electronic Resource
    Electronic Resource
    Electron temperature estimation in the Saha Institute of Nuclear Physics tokamak from the soft x-ray imaging system (1998)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 69 (1998), S. 1378-1382 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A soft x-ray imaging diagnostics has been developed for the study of magnetohydrodynamics activities in the Saha Institute of Nuclear Physics tokamak plasma and also to estimate the plasma electron temperature. The main feature of this diagnostics is the use of p–i–n photodiodes, and in this article we present the results of the estimated plasma electron temperature Te(eV) by the absorber foil method. These values agree very closely with the estimated values from Spitzer resistivity. We feel that this technique of using a soft x-ray array for temperature measurement has a good potential for providing very economical Te(r,t) measurements with good time and spatial resolution especially for low budget small tokamaks. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1148769
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Audio-frequency discharge cleaning system for the SINP tokamak using single turn primary (1994)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 65 (1994), S. 135-139 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Taking advantage of the iron core of the Saha Institute of Nuclear Physics (SINP) tokamak, a single turn primary coil was used to generate low power ohmically excited audio-frequency hydrogen plasma to clean the SINP tokamak vacuum vessel of adsorbed gases. This scheme allowed us to easily use available low voltage power transistors and other existing power supply components to generate audio-frequency voltage. Using this scheme the discharge cleaning system was tested successfully in a short period of 2–3 months. The system has been utilized to carry out initial discharge cleaning of the vessel as well as daily cleaning to achieve full designed parameters of our tokamak.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144785
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Measurement of plasma diamagnetism in the SINP tokamak by a flux loop system inside the vacuum vessel (2001)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 72 (2001), S. 4289-4291 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Plasma diamagnetism has been measured in the SINP tokamak by a toroidal flux loop placed inside the vacuum vessel. The flux due to the strong toroidal field has been compensated for by a coplaner annular loop which encircles but does not contain the plasma column. The influence of the eddy currents in the vacuum vessel and the conducting shell in these loops has been calculated analytically by a circuit model using the theory of linear networks and compensated accordingly. This method has been shown to yield an almost exact compensation for toroidal flux (∼0.01%) as well as pickups from other fields. Typical results with plasma shots have been presented. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1406915
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    Paper (German National Licenses)
    Fulltext
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