Emission of nuclear quadrupole resonance from polycrystalline hexamethylenetetramine |
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Authors: | Ota G Itozaki H |
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Affiliation: | a1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan |
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Abstract: | The angular dependence of the nuclear quadrupole resonance (NQR) signal intensity emitted from polycrystalline hexamethylenetetramine has been analytically investigated for all directions for non-contact detection of chemicals by nuclear quadrupole resonance. The field pattern of the NQR signal from a column sample was measured. The emitted patterns were the same as that from a united single magnetic dipole, which fitted well to the estimation based on quadrupole principle axis system. This result is helpful to design an antenna for NQR remote detection. |
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Keywords: | NQR Nuclear quadrupole resonance Angular dependence Field pattern Emission |
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