French
DeutschFile:Relaxation longitudinal magnetization.svg
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Summary
| Description | English: After a 90° excitation pulse the longitudinal magnetization returns to the equilibrium state. The longitudinal relaxation time T1 is indicated in the graph. Deutsch: Nach einem 90° Anregungspuls kehrt die longitudinale Magnetisierung zurück zum Gleichgewichtszustand zurück. Die longitudinale Relaxationszeit T1 ist im markiert. |
| Date | |
| Source | Own work |
| Author | FbrG |
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MATLAB Code
% general parameters tEnd = 12000; t = linspace(0, tEnd, 5000); T1 = 2000; %ms %% Longitudinal Magnetization figure('Position', [100 100 1200 500]) hold on axT1 = gca; axT1.TickLabelInterpreter = 'latex'; set(axT1, 'Position', [0.2 0.1 0.7 0.8]) plot([0 tEnd], [1 1], 'k--', ... 'LineWidth', 2, ... 'color', 0.4*[1 1 1]) plot(t, 1-exp(-t/T1), ... 'LineWidth', 2); plot([T1 T1], [0 1-exp(-1)], 'k--', ... 'LineWidth', 1, ... 'color', 0.4*[1 1 1]) plot([0 T1], [1-exp(-1) 1-exp(-1)], 'k--', ... 'LineWidth', 1, ... 'color', 0.4*[1 1 1]) ylim([0 1.1]) xlim([0 1.025*tEnd]) xticks([T1 1.025*tEnd]) xticklabels({'$T_1$', 't'}) yticks([0 1-exp(-1) 1]) yticklabels({'$0$', '$M_{z, \mathrm{eq}}(1-1/\mathrm e)$', '$M_{z, \mathrm{eq}}$'}) set(gca,'TickLength',[0, 0]) set(gca,'LineWidth', 1) title('relaxation of longitudinal magnetization') axT1.FontSize = 20; saveas(gcf, 'relaxation longitudinal magnetization.svg') File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:56, 4 January 2021 | | 1,500 × 625 (109 KB) | FbrG | Uploaded own work with UploadWizard |
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