Process for the excitation of a sample for NMR tomography
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United States of America Patent
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Dec 30, 1986
Grant Date -
N/A
app pub date -
Apr 16, 1985
filing date -
Apr 18, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The use of longer 180.degree. pulse sequences for the generation of spin echos is made possible according to the invention during NMR tomography using the 2d-Fourier transformation process in that the phase position and, thus, the sense of rotation of the 180.degree. pulses is reversed after every two pulses. The mirror images which appear otherwise when using the known 180.degree. pulse sequences, e.g. the Carr-Purcell-Gill-Meiboom pulse sequence, are avoided by this measure.
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