This work presents updates in the diagnostics systems, magnetohydrodynamics (MHD) calculations and simulations of microwave heating scenarios of the small modular Stellarator of Costa Rica 1 (SCR-1). Similarly, the design of a flexible bolometer and magnetic diagnostics (a set of Mirnov coils, Rogowski coils and two diamagnetic loops) are introduced. Furthermore, new MHD equilibrium calculations for the plasma of the SCR-1 device were performed using the VMEC code including the poloidal cross-section of the magnetic flux surfaces at different toroidal positions, profiles of the rotational transform, magnetic well, magnetic shear and total magnetic field norm. Charged particle orbits in vacuum magnetic field were computed by the magnetic field solver BS-SOLCTRA (Vargas et al. In 27th IAEA Fusion Energy Conference (FEC 2018), 2018. IAEA). A visualization framework was implemented using Paraview (Solano-Piedra et al. In 23rd IAEA Technical Meeting on the Research Using Small Fusion Devices (23rd TM RUSFD), 2017) and compared with magnetic mapping results (Coto-Vílchez et al. In 16th Latin American Workshop on Plasma Physics (LAWPP), 2017, pp. 43–46). Additionally, simulations of microwave heating scenarios were performed by the IPF-FDMC full-wave code. These simulations calculate the conversion of the ordinary waves to extraordinary waves and allow us to identify the location where the conversion takes place. Finally, the microwave heating scenarios for the $330^{\circ }$ toroidal position are presented. The microwave heating scenarios showed that the O–X–B mode conversion is around 12–14 %. It was possible to identify the spatial zone where the conversion takes place (upper hybrid frequency).
Este proyecto simuló escenarios de confinamiento que buscan analizar diferentes formas de la sección transversal del plasma y de esta manera prever el parámetro beta óptimo en un tokamak esférico de baja razón de aspecto como lo es MEDUSA-CR. Además, se busca diseñar sistemas para operación y diagnóstico en este dispositivo. Finalmente, en este proyecto proponemos un experimento único como prueba de principio utilizando antenas RF para inducir ondas de Alfvén en un Tokamak esférico. Las simulaciones de las interacciones del plasma con las ondas electromagnéticas RF y ECRH permiten explorar en este dispositivo escenarios de calentamiento optimizado que también son del interés de la comunidad científica debido a que la alta temperatura es un requisito indispensable para procesos de fusión.
The original version of this article was published with an editor's name misspelled in the acknowledgements. The correct acknowledgement should read as below.
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