Development of conductively cooled HTS magnet for cryogenic test set-up

A cryogen free cryogenic test set-up has been designed, developed and tested. This is a unique facility for low temperature experiments where large sample current and space is required for the measurement under different temperatures and magnetic fields like transport critical current of superconductors. Laboratory scale conduction cooled High Temperature Superconducting (HTS) magnet consisting of several pancake coils, each inserted between copper plates is fabricated and thermally connected with the cold head of the cryo-cooler. The thermal performance of the system was tested and magnet energised to produce about 2 Tesla of magnetic field in a clear variable temperature bore of 70 mm. This presentation describes general features of the system and different measurements carried out while commissioning the system. (author)