Evaluation of magnet losses from He II temperature measurements in TORE SUPRA
The toroidal field system of the French tokamak TORE SUPRA is cooled by superfluid helium. A particular behaviour has been observed during safety discharges in one of the eighteen coils (BT13) of the system, in relation with a higher level of He II temperatures. Thanks to external temperature sensors and to the Gorter Mellink conduction in the cooling channels, it has been possible to make a thermal evaluation by a calorimetric method. An hypothesis for the defect inside the coil is presented and discussed taking into account a campaign of safety discharges performed in Summer 1993.
Bibliographic Reference: Article: Cryogenics (1997)
Record Number: 199810156 / Last updated on: 1998-02-12
Original language: en
Available languages: en