Normal operation of the 1.8 K Tore Supra cryogenic system
The first cool down of the Tore Supra cryogenic system started in February 1988. With the exception of two weeks during the summer of 1988, the torus was maintained at low temperature for 13 months. The cryogenic performances were close to the expected values, except at the 4.5 K level where about 300 W excessive thermal load was measured in the three satellites and the connection lines. Between April and August 1989, while one of the 18 coils was being removed to install a space coil in its place, corrections to the cryogenic distribution circuits were introduced, with the aim of reducing heat losses. Since the end of September the torus has been operated again at nominal temperature levels. By early November the toroidal field on the plasma axis reached the 4.5 teslas nominal value with 1450 A through the coil conductor and 9.3 teslas on the superconducting wire. The expected cryogenic performances are now achieved.
Bibliographic Reference: Paper presented: International Cryogenic Engineering Conference, Beijing (CN), April 24-27, 1990
Availability: Available from (1) as Paper EN 35453 ORA
Record Number: 199011226 / Last updated on: 1994-12-01
Original language: en
Available languages: en