Title :
90-mm/18.8-T All-HTS Insert Magnet for 1.3 GHz LTS/HTS NMR Application: Magnet Design and Double-Pancake Coil Fabrication
Author :
Bascunan, Juan ; Seungyong Hahn ; Youngjae Kim ; Jungbin Song ; Iwasa, Yukikazu
Author_Institution :
Magn. Technol. Div., Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
This paper deals with the latest design of an all High Temperature Superconductor (HTS) insert for our 1.3 GHz NMR program. Due to a loss of our original 600 MHz HTS insert, the entire program was revised, and upon further examination of the options available for the HTS insert, which included not only conductor material properties, but also new winding technologies recently developed here at the FBML, it has finally been decided to build an 800 MHz (H800) insert purely based in SuperPower YBCO conductor. The new H800 will still be comprised of nested stacks of double-pancake coils and will run in the background of a 500 MHz LTS NMR magnet already available at FBML. We present here electromagnetic and mechanical details of the H800 design, winding technique employed, and testing of individual coils.
Keywords :
coils; high-temperature superconductors; windings; FBML; H800 design; HTS insert; LTS NMR magnet; NMR application; SuperPower YBCO conductor; conductor material; double pancake coil fabricationi; double pancake coils; frequency 1.3 GHz; frequency 500 MHz; frequency 600 MHz; frequency 800 MHz; high temperature superconductor; insert magnet; magnet design; winding technique; winding technologies; Coils; Conductors; High-temperature superconductors; Magnetic resonance imaging; Nuclear magnetic resonance; Superconducting magnets; Windings; Double-pancake (DP) coils; NMR; YBCO; high temperature superconducting (HTS) insert; superconducting magnet;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2013.2285781