Digital control of plasma position in damavand tokamak

Emami, M. Reza; Babazadeh, A. R.; Roshan, M.V.; Memarzadeh, M.; Habibi, Hossein

doi:10.1590/s0103-97332002000100009

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…A tokamak is a plasma confinement device [2] and essentially is a transformer in which plasma forms a single-turn short-circuited loop as its secondary windings. The Damavand tokamak has an elongated plasma cross-section [3,4]. The tokamak cross-section is shown in figure 1 and its main plasma parameters are given in table 1.…”

Section: Introductionmentioning

confidence: 99%

Plasma electron density measurement by a digital signal processor based millimetre-wave interferometer

Emami

Rasouli

2004

Meas. Sci. Technol.

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This paper addresses the measurement of the average plasma electron density based on the measurement of a phase, using a 2 mm wavelength single-channel digital millimetre-wave interferometer in the Damavand tokamak. Damavand tokamak discharges have plasma currents up to 40 kA with discharge duration greater than 15 ms and toroidal magnetic fields up to 1.2 T. Phase analysis is done using a digital signal processor which is capable of registering phase variations at a rate of 10π × 104 rad s−1, which corresponds to a change in electron density of 1.5 × 1017 cm−3 s−1. In this paper, the details of the millimetre wave interferometer system along with the implementation of a phase measurement routine based on a TMS320c25 digital signal processor are presented.

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Section: Introductionmentioning

confidence: 99%

Plasma electron density measurement by a digital signal processor based millimetre-wave interferometer

Emami

Rasouli

2004

Meas. Sci. Technol.

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Plasma column displacement measurements by modified Rogowski sine-coil and Biot–Savart/magnetic flux equation solution on IR-T1 tokamak

Razavi

Mollai

Khorshid

et al. 2010

Review of Scientific Instruments

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The modified Rogowski sine-coil (MRSC) has been designed and implemented for the plasma column horizontal displacement measurements on small IR-T1 tokamak. MRSC operation has been examined on test assembly and tokamak. Obtained results show high sensitivity to the plasma column horizontal displacement and negligible sensitivity to the vertical displacement; linearity in wide, +/-0.1 m, range of the displacements; and excellent, 1.5%, agreement with the results of numerical solution of Biot-Savart and magnetic flux equations.

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Digital control of plasma position in damavand tokamak

Cited by 2 publications

References 3 publications

Plasma electron density measurement by a digital signal processor based millimetre-wave interferometer

Plasma electron density measurement by a digital signal processor based millimetre-wave interferometer

Plasma column displacement measurements by modified Rogowski sine-coil and Biot–Savart/magnetic flux equation solution on IR-T1 tokamak

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