REBCO WG meeting

Thursday 10 Feb 2022, 11:00 → 12:40 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
• COMB
• c3

• BNL - common coil

  • ACT will wind the 3-turn coil and final STTR coil. 

  • Ramesh will ask ACT to share the 3D cad model. 

  • Maxim needs the dimensions of the groove and the total length of the conductor in the magnet. 

  • Extra tapped holes (10-32) on the plate would be very useful, for instance, to install heaters. No pocket on the plate is required. Reed will determine the heater locations and may also include the hall sensors near the inter-layer splice.

 

• FNAL - COMB

  • Plans to print SS-316 mandrel to test the CORC sample. The mandrel has a tilted groove at the minimum bending radius region that can help lock the conductor once it is in the groove.

  • The mandrel is being procured. Expect to have the mandrel in a few weeks. 

 

• LBL - C3

  • Completed Stycast filling test. The result proved the principle and provided excellent feedback for improvement. The next step is to measure the strain response during cooldown to 77 K. 

  • Winder is ready to be moved to the lab. 

  • Once setting up the winder and completing the cooldown test, we can start making the 3-turn c3 in late February or early March. 

 

11:30 → 11:50 Plan for the collaboration meeting

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