Through the design, development and testing of superconducting coil systems for several large-scale international projects, the Superconductivity Group of SPC has developed expertise that covers the full path from sample preparation to magnet testing.

Sample Preparation and Testing

• Preparation of LTS samples for tests in SULTAN, typically starting from conductor sections delivered by the customers.
• Preparation of HTS samples for tests in SULTAN. HTS samples are frequently prepared by the customers, at least the conductor sections with terminations. At SPC, we assemble the conductor sections into the SULTAN sample, attach it to the HTS adapter and instrument it.
• Preparation of joints.
• Manufacture and testing of medium-size coils for tests in JORDI.
• Heat treatment of Nb₃Sn conductors.
• Testing of high-current conductors in SULTAN, EDIPO 2 and JORDI, and single strands and HTS tapes in a 15 T magnet.

Research and Development

• New prototype HTS conductors for fusion magnets: LASSO, ASTRA, NTNT.
• New prototype LTS conductors for fusion magnets: react-and-wind Nb₃Sn, diffusion-bonded joints.
• Quench detection.
• Superconducting switches.
• Degradation of HTS cables due to electromagnetic cyclic loading and quenches.
• Small HTS coils (Bi2212; REBCO; LASSO).

Conceptual Magnet Design

• Toroidal-field (TF), central-solenoid (CS) and poloidal-field (PF) coil design for EUROfusion DEMO and VNS tokamaks.
• Stellarator coils.
• EDIPO 2 main coils.
• Thermal-hydraulic calculations and cryogenics.