Title :
A 700 MHz LTS/HTS NMR Magnet— A Status Report
Author :
Bascunán, Juan ; Lee, Haigun ; Bobrov, Emanuel S. ; Hahn, Seungyong ; Iwasa, Yukikazu
Author_Institution :
Francis Bitter Nat. Magnet Lab., MIT, Cambridge, MA
fDate :
6/1/2006 12:00:00 AM
Abstract :
Phase II of our three phase program to develop a 1 GHz High Resolution LTS/HTS NMR Magnet, entails the design, construction and testing of a 700 MHz LTS/HTS NMR magnet. Here we report on the design and construction of a 100 MHz HTS Insert magnet, its interface to a 600 MHz LTS magnet, and testing of the LTS/HTS assembly. Immersed in 4.2 K LHe at atmospheric pressure, the coils are independently powered with the HTS Insert operating at 116 A while the background LTS coil carries 235 A. Details of the mechanical, cryogenic and magnetic features of the system are presented
Keywords :
bismuth compounds; calcium compounds; high-temperature superconductors; lead compounds; nuclear magnetic resonance; silver; stainless steel; strontium compounds; superconducting coils; superconducting device testing; superconducting magnets; superconducting tapes; 1 GHz; 100 MHz; 116 A; 235 A; 4.2 K; 700 MHz; B2223-Ag-stainless steel tape; HTS coils; HTS insert; NMR magnet construction; NMR magnet design; NMR magnet testing; atmospheric pressure; background LTS coil; cryogenic features; high resolution HTS NMR magnet; high resolution LTS NMR magnet; liquid He; magnetic features; mechanical features; phase program; Assembly; Cryogenics; High temperature superconductors; Magnetic separation; Nuclear magnetic resonance; Saturation magnetization; Superconducting coils; Superconducting magnets; Switches; Testing; BSCCO-2223/Ag/stainless steel tape; LTS/HTS coils; NMR magnet;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.864454
