REBCO WG meeting

Thursday 1 Jul 2021, 11:00 → 12:20 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 → 11:45 Status update

• Subscale common coil
• COMB
• CCT

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

• Subscale common coil
  • Reed provided input on the instrument needs for Piyush to develop the schematic for the BNL test facility.
  • Maxim will follow up with Ramesh if the proposed groove can be machined by BNL.
• COMB
  • ACT examined the samples being bent at FNAL and found that a fresh lubricant can significantly improve the Ic retention, e.g., >85% at a bending diameter of 50 mm. 
  • FNAL plans to send a straight wire to ACT to apply fresh lubricant for FNAL to test the bending performance relevant for the COMB design
• C3
  • Started preparation work for the 3-turn version. 
  • Updated the results on using Stycast to fill the radial gap between mandrels. 
  • Will continue the impregnation test using short CORC wires using epoxy that can be cured at room temperature.