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Renewal of the Control System and Reliable Long Term Operation of the LHD Cryogenic System
2015
Physics Procedia
The Large Helical Device (LHD) is a heliotron-type fusion plasma experimental machine which consists of a fully superconducting magnet system cooled by a helium refrigerator having a total equivalent cooling capacity of 9.2 kW@4.4 K. Seventeen plasma experimental campaigns have been performed successfully since 1997 with high reliability of 99%. However, sixteen years have passed from the beginning of the system operation. Improvements are being implemented to prevent serious failures and to
doi:10.1016/j.phpro.2015.06.014
fatcat:c4ah55vwsfca7ngxe4wo4odata