Superconducting Magnet

For an experimental setup, UKAEA wishes to procure a superconducting solenoid. One type of experiment performed with the solenoid will be field cooling of bulk superconductors. The preference is for a conduction-cooled helium-free magnet. The parameters of the solenoid are anticipated to be in the following range: The field at the magnet centre is vertical Access to the solenoid field is at room temperature via a re-entrant tail from beneath or above the cryostat. Tail room temperature bore: 60-70 mm The warm bore extends at least 50 or 60 mm above the solenoid mid plane, but as low as reasonably practicable Peak field in bore: 6 T or up to 8 T maximum Field homogeneity within a cylinder 10 mm long and 40 mm radius, centre coincident with that of the solenoid: ±0.5% or better Sweep rate: zero to maximum field in 60 min or less Persistence: to be decided The experimental setup may require this magnet to be moved in horizontal and/or vertical direction while de-energised. The scope of the delivery will include: Magnet, cryostat and cold head assembly Compressor and flexible lines Power supply Programmable magnet control system Factory and site acceptance test