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

Author

Yanagi, Nagato ; Mito, Toshiyuki ; Morikawa, Junji ; Ogawa, Yuichi ; Ohkuni, Kotaro ; Hori, Dan ; Yamakoshi, Shigeo ; Iwakuma, Masataka ; Uede, Toshio ; Itoh, Ikuo ; Fukagawa, Masahiro ; Fukui, Shigeo

Author_Institution

National Insitute for Fusion Sci., Toki, Japan

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1539

Lastpage

1542

Abstract

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.

Keywords

bismuth compounds; calcium compounds; fusion reactor design; high-temperature superconductors; lead compounds; magnetic levitation; plasma confinement; plasma production; silver; strontium compounds; superconducting coils; superconducting device testing; superconducting tapes; 20 to 40 K; Ag-sheathed tapes; Bi-2223; BiPbSrCaCuO-Ag; HTS floating coil system; HTS-PCS; Mini-RT; excitation tests; high-beta plasmas; high-temperature superconductor; internal coil; magnetic confinement; magnetical levitation; plasma production; superconducting coil device; High temperature superconductors; Magnetic confinement; Magnetic devices; Magnetic levitation; Plasma confinement; Plasma devices; Plasma temperature; Superconducting coils; Superconducting magnets; Wounds; Bi-222; HTS-PCS; Mini-RT; fusion; internal coil; magnetic levitation;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.830693

Filename

1325092