Experiments of the HTS floating coil system in the mini-RT project

• Published in: IEEE transactions on applied superconductivity Vol. 14; no. 2; pp. 1539 - 1542
• Main Authors: Yanagi, N., Mito, T., Morikawa, J., Ogawa, Y., Ohkuni, K., Hori, D., Yamakoshi, S., Iwakuma, M., Uede, T., Itoh, I., Fukagawa, M., Fukui, S.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.2004; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; COILING; Confinement; Devices; ELECTRIC RAILWAYS; Electrical engineering. Electrical power engineering; Electromagnets; ELECTRONIC PRODUCTS; Exact sciences and technology; Floating structures; High temperature superconductors; Magnetic confinement; Magnetic devices; Magnetic levitation; Materials; Plasma confinement; Plasma devices; Plasma temperature; PLASMAS; Superconducting coils; Superconducting magnets; Superconducting tapes; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TAPE; Various equipment and components; Wounds; HTS-PCS; Plasma production; Superconductor device; Experimental study; Superconducting coils; fusion; High-beta plasma; Mini-RT; internal coil; Magnetic confinement; Superconducting tapes; High temperature superconductor; Bi-2223; Magnetic levitation
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2004.830693

A magnetically levitated superconducting coil device, Mini-RT, has been constructed using a high-temperature superconductor for the purpose of examining a new magnetic confinement scheme of high-beta plasmas. The floating coil is wound with Bi-2223 Ag-sheathed tapes, and it is operated in the temperature range 20-40 K. The excitation tests of the coil were carried out and the rated current was successfully achieved by overcoming many difficulties. The first magnetic levitation was realized for one hour and the plasma production was initiated.