Magnetic field conditioning system for field-cycling NMR

GUILLERMO O. FORTE; HÉCTOR SEGNORILE; GERMAN FARRHER; MARTÍN HERRERA; JOSEFINA PERLO; ESTEBAN ANOARDO

Torino, Italia

Conferencia; 6TH Conference on field cycling NMR relaxometry; 2009

In some cases field-cycling experiments requires both a good defintion of the Larmor frequency within the ULF regime (ultra low frequency) and high magnetic field homogeneity during  signal acquisition. In addition, sharp pronounced transients when switching the magnetic field may produce undesirable effects in the experiments. Depending on the available hardware, such limitations can be overcomend more or less easily with specific solutions. In any case, the availability of an specific tool for the analysis and diagnosis of these limitations or any other due to system failures is appreciated. A technological integrated universal platform that can be adapted to any magnet-geometry is discussed. The system compensates external static and time-dependent mean fields and first order gradients, correct magnetic field inhomogeneity and allows to scan and analyze the time and spatial dependence of the magnetic field.