Open AccessACCURATE AND QUICK SETTING OF MAGIC ANGLE
Author(s) -
Chaohui Ye,
Qiu Jian-Qing,
Liyun Li,
Sun Bo-Qin
Publication year - 1984
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.33.1680
Subject(s) - magic angle , quadrupole , magic (telescope) , solid angle , rotation (mathematics) , deuterium , nuclear magnetic resonance , magnetic field , physics , spectrometer , magic angle spinning , optics , atomic physics , materials science , computer science , detector , nuclear magnetic resonance spectroscopy , quantum mechanics , artificial intelligence
The FID arising from the quadrupole interaction is broken into a rotational echo train under the slow rotation condition, and the number of these echoes increases when adjusting the angle between the rotational axis and the applied magnetic field towards the Magic Angle. Thus, a accurate and quick setting of the Magic Angle in MAS-NMR experiments can he easily obtained by this phenomenon. It is theoretically explained by analysing the FID of a spin-1 system. The setting accuracy within 0.05°with a per-deuterated HMB sample is experimentally demonstrated.