Constructing a small modular stellarator in Latin America

15th Latin American Workshop on Plasma Physics; 21st IAEA TM on Research Using Small Fusion Devices

Vargas, V.I.^1 ; Mora, J.^1 ; Asenjo, J.^1 ; Zamora, E.^1 ; Otárola, C.^1 ; Barillas, L.^1 ; Carvajal-Godínez, J.^1 ; González-Gómez, J.^1 ; Soto-Soto, C.^1 ; Piedras, C.^1

Plasma Laboratory for Fusion Energy and Applications, Instituto Tecnológico de Costa Rica, Cartago, Costa Rica^1

关键词: Design and construction;    low shear configuration;    Magnetic confinement;    Maximum output power;    Plasma laboratories;    Rotational transform;    small modular stellarator;    Stellarator;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/591/1/012016/pdf
DOI  :  10.1088/1742-6596/591/1/012016

来源: IOP

【 摘 要 】

This paper aims at briefly describing the design and construction issues of the stellarator of Costa Rica 1 (SCR-1). The SCR-1 is a small modular stellarator for magnetic confinement of plasma developed by the Plasma Laboratory for Fusion Energy and Applications of the Instituto Tecnológico de Costa Rica (ITCR). SCR-1 will be a 2-field period small modular stellarator with an aspect ratio > 4.4; low shear configuration with core and edge rotational transform equal to 0.32 and 0.28; it will hold plasma in a 6061-T6 aluminum torus shaped vacuum vessel with an minor plasma radius 54.11 mm, a volume of 13.76 liters (0.01 m3), and major radius R = 238 mm. Plasma will be confined in the volume by on axis magnetic field 43.8 mT generated by 12 modular coils with 6 turns each, carrying a current of 767.8 A per turn providing a total toroidal field (TF) current of 4.6 kA-turn per coil. The coils will be supplied by a bank of cell batteries of 120 V. Typical length of the plasma pulse will be between 4 s to 10 s. The SCR-1 plasmas will be heated by ECH second harmonic at 2.45 GHz with a plasma density cut-off value of 7.45 × 1016m-3. Two magnetrons with a maximum output power of 2 kW and 3 kW will be used.