Title :
A low- and high-temperature superconducting NMR magnet: design and performance results
Author :
Bascunan, Juan ; Lee, Haigun ; Bobrov, Emanuel S. ; Iwasa, Yukikazu
Author_Institution :
MIT Francis Bitter Magnet Lab., Cambridge, MA, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
A nuclear magnetic resonance (NMR) magnet comprised of low- and high-temperature superconducting (LTS/HTS) coils has been built and operated at a frequency of 360 MHz. The magnet operates at 4.2 K with the LTS background coil operated in persistent mode, while the HTS insert is in driven mode. The HTS insert is an assembly of 50 double pancakes, each wound with Bi-2223/Ag tape. The paper describes design and performance results of the LTS/HTS magnet.
Keywords :
bismuth compounds; calcium compounds; copper compounds; high-temperature superconductors; nuclear magnetic resonance; strontium compounds; superconducting coils; superconducting magnets; superconducting tapes; 360 MHz; 4.2 K; Bi-2223/Ag tape; Bi2Sr2Ca2Cu3O; LTS background coil; double pancakes; driven mode; high-temperature superconducting NMR magnet; high-temperature superconducting coils; persistent mode; Assembly; Conductors; High temperature superconductors; Magnetic resonance; Nuclear magnetic resonance; Steel; Superconducting coils; Superconducting films; Superconducting magnets; Wounds;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.812771
