Predictions of core plasma performance for the SPARC tokamak

SPARC is designed to be a high-field, medium-size tokamak aimed at achieving net energy gain with ion cyclotron range-of-frequencies (ICRF) as its primary auxiliary heating mechanism. Empirical predictions with conservative physics indicate that SPARC baseline plasmas would reach $Q\approx 11$ , which is well above its mission objective of $Q>2$ . To build confidence that SPARC will be successful, physics-based integrated modelling has also been performed. The TRANSP code coupled with the theory-based trapped gyro-Landau fluid (TGLF) turbulence model and EPED predictions for pedestal stability find that $Q\approx 9$ is attainable in standard H-mode operation and confirms $Q > 2$ operation is feasible even with adverse assumptions. In this analysis, ion cyclotron waves are simulated with the full wave TORIC code and alpha heating is modelled with the Monte–Carlo fast ion NUBEAM module. Detailed analysis of expected turbulence regimes with linear and nonlinear CGYRO simulations is also presented, demonstrating that profile predictions with the TGLF reduced model are in reasonable agreement.

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Characteristics of the resonant instability of surface electrostatic-ion-cyclotron waves in a semi-bounded warm magnetized dusty plasma

Physics Letters A ◽

10.1016/j.physleta.2016.01.038 ◽

2016 ◽

Vol 380 (11-12) ◽

pp. 1193-1196 ◽

Cited By ~ 2

Author(s):

Woo-Pyo Hong ◽

Young-Dae Jung

Keyword(s):

Dusty Plasma ◽

Magnetized Dusty Plasma ◽

Ion Cyclotron Waves ◽

Resonant Instability ◽

Ion Cyclotron

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First results of low frequency electromagnetic wave detector of TC-2/Double Star program

Annales Geophysicae ◽

10.5194/angeo-23-2803-2005 ◽

2005 ◽

Vol 23 (8) ◽

pp. 2803-2811 ◽

Cited By ~ 29

Author(s):

J. B. Cao ◽

Z. X. Liu ◽

J. Y. Yang ◽

C. X. Yian ◽

Z. G. Wang ◽

...

Keyword(s):

Electromagnetic Wave ◽

Southern Hemisphere ◽

Northern Hemisphere ◽

Geomagnetic Storms ◽

Low Frequency ◽

Wave Detector ◽

Ion Cyclotron Waves ◽

Satellite Platform ◽

Ion Cyclotron ◽

First Results

Abstract. LFEW is a low frequency electromagnetic wave detector mounted on TC-2, which can measure the magnetic fluctuation of low frequency electromagnetic waves. The frequency range is 8 Hz to 10 kHz. LFEW comprises a boom-mounted, three-axis search coil magnetometer, a preamplifier and an electronics box that houses a Digital Spectrum Analyzer. LFEW was calibrated at Chambon-la-Forêt in France. The ground calibration results show that the performance of LFEW is similar to that of STAFF on TC-1. The first results of LFEW show that it works normally on board, and that the AC magnetic interference of the satellite platform is very small. In the plasmasphere, LFEW observed the ion cyclotron waves. During the geomagnetic storm on 8 November 2004, LFEW observed a wave burst associated with the oxygen ion cyclotron waves. This observation shows that during geomagnetic storms, the oxygen ions are very active in the inner magnetosphere. Outside the plasmasphere, LFEW observed the chorus on 3 November 2004. LFEW also observed the plasmaspheric hiss and mid-latitude hiss both in the Southern Hemisphere and Northern Hemisphere on 8 November 2004. The hiss in the Southern Hemisphere may be the reflected waves of the hiss in the Northern Hemisphere.

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