DO-34400/TE Supply of a Multipurpose Cryostat for HTS Cable Testing

CERN will use the Cryostat, once equipped by CERN with ancillary equipment, to characterize HTS cables, coils and small size magnets. The Cryostat consists of inner pressure vessels, a thermal screen, insulation-blanket layers, an outside vacuum tank and all the related flanges to close the reservoirs. The Cryostat is made of an outside vacuum tank and an inner pressure vessel. A thermal screen that can be actively cooled is located in between the two main components. Insulation-blanket layers are positioned around the pressure vessel and the thermal screen. CERN will immerse the HTS samples either in liquid helium at about 5 K or in vacuum with the pressure vessel cooled by gas circulating in a closed loop. In this second case, another different loop cools the sample, which is not part of the Supply. The Figure 2 presents an overview of the Cryostat.