REBCO WG meeting

Thursday 23 Sept 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? 

1 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)

• The lubricant issue for CORC is expected to be resolved very soon. 
• Subscale common coil:
  • Received the hardware and dummy cable.
  • Test winding next week.
  • Plan to measure the short sample before and after bending.
  • Still need the conductor from ACT.
  • Plan to power the insert and outsert in parallel. The current setup can accommodate the instrumentation needs. 
• COMB:
  • Plan to test in October the re-lubricated sample in the COMB structure. 
• CCT:
  • Plan to start fabricating the mandrels for the 3-turn version hopefully in October. 
  • Two samples for impregnation study are ready for tests in liquid nitrogen before bending. 

 

• Reed developed a new low-cost quench detection box that showed promising performance. 
• Anis recommended Tektronix DMM7510 for fast low-voltage measurement.