Conveners
Sat-Af-Mem1 - Hubertus Weijers Memorial: High Field Magnets
- Ziad Melhem (Oxford Quantum Solution Ltd)
- Iain Dixon (NHMFL/FSU)
Hubertus (Huub) Wilhelmus Weijers joined the National High Magnetic Field at the Florida State University in 1992, before the NHMFL’s grand opening and as one of the first new hires focused on building the delta B program, conceived of by Steve Van Sciver. Although this was only a few years after the discovery of HTS materials, Steve recognized that HTS would be vital to the long term future...
We have proposed “Robust REBCO coil” concept for high field cryogen-free superconducting magnet (CSM), which consists of two REBCO tapes co-winding and edge-impregnation. It is expected that the two tapes co-winding in direct electric contact can reduce the risk of burn-out coming from local degradations and the edge-impregnation reduce the maximum hoop stress [1-3]. From an electromagnetic...
We present an update on the ongoing development of the MIT 1.3-GHz nuclear magnetic resonance (NMR) magnet system (1.3G). The 1.3G consists of a 19.6-T (835-MHz) high-temperature superconducting (HTS) REBCO insert magnet (H835) and an 11.7-T (500-MHz) low-temperature superconducting (LTS) background magnet (L500). These two magnets are coaxially aligned and independently powered to generate a...
The Large Scale Coil (LSC) is a high-temperature superconducting (HTS) coil that has been developed and tested in the research and development efforts for the 40-T All-Superconducting Magnet Project at the National High Magnetic Field Laboratory. The LSC is composed of stacked pancake disks consisting of 2-in-hand wound rare-earth barium copper oxide coated conductor (CC REBCO) tapes with...
Ultra-high field magnets are being developed for various applications in fundamental-physics experiments, materials sciences, and nuclear magnetic resonance (NMR). Here we report our recent R&D work focused on conceptual design and enabling technologies for a 40 T all-superconducting solenoid magnet with a 20-mm warn bore, intended for potential high-energy partial physics experiments....
Dipole magnets that approach or surpass magnetic fields of 20 T for use in future particle circular accelerators, and high-field solenoids that operate at 20 K, such as envisioned in a multi-TeV muon collider, require the use of high-temperature superconductors (HTS). Several prototype magnets based on high-current HTS CORC® cables and wires, wound from REBCO coated conductors, have been...
REBCO HTS material makes it possible to consider very high engineering current densities in coil windings even above 10 T with operation temperatures up to 30 K. In this work, we present the design of a 500 mm bore split-coil magnet made of two stacks of REBCO double-pancakes. It is developed as a platform offering eihter 10 T in a mid-plane room temperature bore for magneto-science, or up to...
YBCO is one of the best choices for high field superconducting magnets due to its high current carrying capacity. We present a highly compact no-insulation (NI) magnet wound with 45-micrometer-thick YBCO high temperature superconducting (HTS) tape. A YBCO magnet with one double pancake (DP) coil generated a direct-current magnetic field of 28.20-tesla (the current is 740.4 A), the highest...
