Constructing a small modular stellarator in Latin America

Otárola-Zúñiga, Carlos
Zamora-Picado, Esteban
Vargas-Blanco, Iván
Mora-Meléndez, Jaime
Piedra, C.
Barillas-Mora, Laura
Soto-Soto, C.
Carvajal-Godínez, Johan
González-Gómez, J.
Asenjo, J.

2015-03

17426588

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Ad Astra Rocket Company,Instituto Tecnologico de Costa Rica,International Atomic Energy Agency (IAEA),Universidad Nacional de Costa Rica

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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 × 1016 m-3. Two magnetrons with a maximum output power of 2 kW and 3 kW will be used. © Published under licence by IOP Publishing Ltd.

Research Subject Categories::TECHNOLOGY::Engineering physics::Plasma physics with fusion; Plasma; Magnetismo; Potencia eléctrica;