REBCO WG meeting

Thursday 4 Aug 2022, 11:00 → 12:00 US/Pacific

• What performances and parameters should the conductor have? How can we make magnets using these conductors? 
• What is the maximum dipole field a REBCO magnet can generate?  
• What is the magnet performance? How does it quench? What is the field quality? 
• Does the magnet performance degrade, e.g., during operation, after thermal cycles? If so, how can we prevent it?  
• How can we characterize the performance for long conductors? 

11:00 → 11:30 Update on magnet status

• subscale common coil: instrumentation needs
• COMB
• c3

Speakers: Anis Ben Yahia (Brookhaven National Laboratory), Maxim Martchevskii, Ramesh Gupta (BNL), Reed Teyber (LBNL), Vadim Kashikhin (Fermilab), Vito Lombardo (Fermilab), Xiaorong Wang (LBNL)

• Common coil:
  • BNL prepares the test of subscale CORC^® common coil. Test may occur in September due to the AUP magnet test. 
  • Will have a test preparation meeting on Friday 8/5/2022. 
• COMB
  • Based on the feedback from test winding results, FNAL and ACT are discussing possible optimization of the mandrel design. 
  • FNAL to decide the plan with the existing wires and potential additional wires. 
• C3
  • 3-turn Layer 1 wound. Short between conductor and mandrel occurred due to sharp edges of the mandrel. Have options to mitigate the short for next windings.
  • Next to measure the Ic of Layer 1. 
  • Proposed to vendor to make and test prototype C3 wires to test the assumptions for the received tapes asap.