Title :
A Digital Flux Injector Operated With a 317-MHz NMR Magnet
Author :
Yao, Weijun ; Kim, Woo-Seok ; Hahn, Seungyong ; BascuHán, J. ; Lee, Hai-Gun ; Iwasa, Yukikazu
Author_Institution :
MIT, Cambridge
fDate :
6/1/2007 12:00:00 AM
Abstract :
The paper reports results of the operation of a digital flux injector coupled to a 317-MHz NMR magnet operating at 4.2 K in persistent mode. The experiments have demonstrated that it is possible to periodically inject metered quantities of flux into a persistent-mode superconducting magnet to either compensate for a small field decay or to shift the operating frequency upward or downward without having to switch on the main power supply.
Keywords :
nuclear magnetic resonance; superconducting magnets; superconducting microwave devices; NMR magnet; digital flux injector; frequency 317 MHz; persistent-mode superconducting magnet; power supply; Couplings; High temperature superconductors; Magnetic flux; Nuclear magnetic resonance; Power supplies; Pulse transformers; Superconducting coils; Superconducting magnets; Superconductivity; Switches; Flux transformer; HTS/LTS magnet; NMR magnet; persistent mode;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.898025
