Patent ID: 9110146
Filing Date: 2015-08-18
Classification: G01N,G01R

Abstract:
1. A method for determination of the images of electron relaxation times, T 1 , in EPR tomography consisting in measuring the distribution of spin-lattice relaxation times of electron spins while applying to a being examined object, a multicomponent magnetic field comprising a constant external magnetic field, a gradient field, and a scanning field, and the examined object is located on EPR tomograph, which consists of a source of radio-frequency signals, a bridge, a computer, a resonator, a wave shape generator, swept coils, power supply terminals of permanent magnetic field coils and gradient coils, wherein the resultant relaxation times, T 1 , determined from the ratio of amplitudes of signals, recorded during scanning the sample a periodically variable magnetic field an up and down directions, are established, whereupon a variability function of the resultant relaxation time, T 1 , which reflects the dependency of the relaxation time on the scan frequency, is found for at least two different magnetic field scan frequencies, whereupon projections for the respective relaxation times are established for every point of the recorded spectra by matching functions specific for the respective relaxation times to the resultant function of variability of relaxation time, and then, for each relaxation time, T 1 , an image is reconstructed in 1D or in 2D or in 3D.