REBCO WG meeting

Thursday 21 Oct 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)

• Common coil:
  • BNL has all the required parts to wind the MDP version. 
  • The received practice cable seems too stiff. Discussing with ACT for an alternative before practice winding. 
  • Will send LBL a magnet plate for Maxim to test the new instrumentation. Maxim and Ramesh will follow up. 
• COMB:
  • Measured the Ic of the re-lubricated sample, wound on a COMB structure by ACT with three bends. The observed Ic reduction seems inconsistent with an earlier result from ACT on a different C2-style CORC wire after re-lubrication. The earlier result from ACT can be found here. A mystery to be understood before further development.
• CCT:
  • Expect the conductor for the subscale version in December. 
  • C3 order faces some uncertainties. The vendors are addressing the technical issues. 
• Impressions from CCA:
  • Vendors like SuperOx is significantly expanding the production capacity. 
  • Bruker is delivering 1.3 GHz NMR system including REBCO insert coils to several customers. 
  • Next workshop will be hosted by Univ. of Houston in 2023.

2 Notes from the CCA workshop

Speaker: Xiaorong Wang (LBNL)