A New High-Temperature Superconducting (HTS) 700-MHz Insert Magnet for a 1.3-GHz LTS/HTS NMR Magnet

Area of Science:

• Superconducting magnets
• Nuclear Magnetic Resonance (NMR) spectroscopy
• High-temperature superconductors (HTS)

Background:

• Theft of the original 600 MHz HTS insert in December 2011 necessitated a re-evaluation of the 1.3 GHz NMR Magnet program.
• Existing infrastructure and economic constraints required an alternative solution for achieving 1.3 GHz NMR capabilities.

Purpose of the Study:

• To design and evaluate a new 1.3 GHz NMR magnet system meeting technical specifications and economic viability.
• To detail the design parameters, electromagnetic, and mechanical considerations of a novel 700 MHz HTS insert (H700).

Main Methods:

• Combination of a 600 MHz LTS magnet with a new 700 MHz HTS insert (H700).
• Incorporation of innovative design features within the HTS insert, utilizing YBCO inner and Bi2223 outer coils.
• Analysis of key electromagnetic and mechanical issues related to the H700 insert design.

Main Results:

• Successful development of a 1.3 GHz LTS/HTS magnet system.
• The H700 insert, comprising YBCO and Bi2223 coils, integrates novel design elements.
• Identification and discussion of critical electromagnetic and mechanical challenges in the H700 design.

Conclusions:

• The developed 1.3 GHz LTS/HTS magnet, incorporating the H700 insert, provides a viable solution post-theft.
• The innovative design of the H700 addresses both technical performance and economic considerations.
• Further investigation into electromagnetic and mechanical aspects is crucial for the H700's optimal performance.