nqf imaging

摘要

in an imaging for the spectroscopy of core quadrupol - resonances (nqf) festku00f6rperproben,to which an rf field of the pulse duration tp with a constant on the st sockelamplitude b10 for magnetic excitation of nqf with resonant frequencies and with the core quadrupol moments coupled magnetic moments spent and the sample emitted signal zeitabhu00e4ngi nqf g is detected.the rf field ortsabhu00e4ngiger feldanteil according to a constant gradient g1x. together with the constant rf field ortsabhu00e4ngiges rf field b1 (x) returns, for each of the detektierten nqf's resonance frequency the amplitude signal including sign. t, measurements with different flippwinkeln $i1 of the excited magnetic moment is carried outthe flippwinkelabhu00e4ngigen amplitude values, including signs of fourier transformation, and finally it subject to x - dependent dichteverteilung the observed nuclei together. the procedure does not create an external b0 field, so that a more compact apparatus can be carried out in the test are also partially outside.effects of zeeman - splitting need not be taken into account.