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The Frequency Offset Effects of NQR of Spin I = 1 for Remote Detection

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The Frequency Offset Effects of NQR of Spin I = 1 for Remote Detection

G. V. Mozjoukhine

Quantum Radiophysics Department, Kaliningrad State University, ul. Nevskogo, 14, 236040, Kaliningrad

Reprint requests to Dr. G. V. M.; E-mail: mgeorge@gazinter.net Z. Naturforsch. 57 a, 297–303 (2002); received January 23, 2002

Presented at the XVIth International Symposium on Nuclear Quadrupole Interactions, Hiroshima, Japan, September 9-14, 2001.

The frequency offset effects of the signal interference during steady-state pulse sequences for remote nuclear quadrupole resonance (NQR) of14N nuclei were investigated for the purposes of optimization in remote NQR. The experimental investigations with the separation of interfering NQR signals in sequences for observing signalsf0j90 180j90 gandf0j90

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gwere carried out. The applications of the spherical tensor method for pure NQR of spinI = 1 for the investigation of these sequences and one pulse sequence, two pulse sequences are presented, too.

Key words: NQR; Frequency Offset; Multipulse Sequences; FID; Echo; Interference Signal.

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