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Adjusting Conditions for High‐resolution Pulsed NMR in Solids
Author(s) -
Döhler H.,
Döhler T.,
Fenzke D.
Publication year - 1980
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19804920309
Subject(s) - pulse (music) , dipole , limiting , range (aeronautics) , pulse sequence , resolution (logic) , nuclear magnetic resonance , rotation (mathematics) , materials science , interval (graph theory) , spectrometer , molecular physics , physics , chemical physics , optics , mathematics , quantum mechanics , computer science , mechanical engineering , engineering , geometry , combinatorics , artificial intelligence , detector , composite material
Abstract Adjusting conditions of pulse sequences for high‐resolution nmr in solids are demonstrated by the example of the WHH4 cycle. For this pulse sequence the well‐known adjusting condition [1] occurs as limiting case at sufficiently weak dipolar interaction. The relations between the pulse rotation angle and interval time proved to be dependent on the dipolar interaction. Therefore it is impossible to suppress the dipolar interaction in ordinary solids completely. If the strength of the dipolar interaction varies in a range depending on the allowable inhomogeneity of the rf field a spectrometer for high‐resolution nmr in solids can be adjusted in an almost optimal way.