Final Report - DE-SC0019722 - HTS Solenoid for Neutron Scattering
- Particle Beam Lasers, Inc., Northridge, CA (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
US neutron scattering facilities are currently limited to ~16 T, which is insufficient to study the structure and dynamics of ultra-high magnetic field states of quantum matter and materials processed in high magnetic fields. To remedy this, proposals were requested for very high field magnets suitable for neutron-scattering applications. Particle Beam Lasers, Inc. (PBL) and the Superconducting Magnet Division of Brookhaven National Laboratory (BNL) responded with a proposal to advance magnet technology for neutron-scattering experiments by capitalizing upon their expertise and equipment, some of which was developed during several SBIR/STTR collaborations, including one that designed, built and tested a solenoid that generated nearly 16 T, a world record in 2013 for a magnet exclusively of high temperature superconductor (HTS). BNL also has built and tested an HTS magnet for superconducting magnetic energy storage, and is building a 25 T solenoid for Axion research. Proposed are magnet designs of a revolutionary geometry that provides generous viewing access radially, axially, and circumferentially. The designs exploit outboard coils to magnetically attract inboard coils so strongly as to overpower the attractive force from coils on the opposite side of the magnet midplane. These inner coils therefore need no midplane-straddling structure for mechanical support. Support of the outboard coils is at a radius so large as to block little of the circumference of the midplane viewing port. Phase I benefited from the participation of BNL scientists involved in neutron-scattering experiments to generate preliminary designs of 25 T magnets that satisfy their challenging requirements. A major computational task was to optimize the magnet design to reduce cost in materials and fabrication and to limit the strain on conductors. An experimental task was to utilize HTS tape on hand to wind coils of conical shape and to test them at 77 K. Phase II would extend the theoretical and experimental studies of Phase I to a Proof-of-Principle demonstration magnet.
- Research Organization:
- Particle Beam Lasers, Inc.
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- DOE Contract Number:
- SC0019722
- OSTI ID:
- 1576597
- Type / Phase:
- SBIR (Phase I)
- Report Number(s):
- DOEPBL19722
- Country of Publication:
- United States
- Language:
- English
Similar Records
Novel High Field Steady State LTS-HTS Hybrid Magnet (Final Report)
Homogenous BSCCO-2212 Round Wires for Very High Field Magnets