Mikhaltsevitch V T
Research Group, QRSciences Limited, 8-10 Hamilton Street, Cannington, WA 6107, Australia.
J Magn Reson. 2005 Dec;177(2):173-83. doi: 10.1016/j.jmr.2005.03.011.
Experimental evidence of observing a rather unusual spin-locking spin echo (SLSE) effect in the fields of two multi-pulse sequences (varphi(0))(x)-(tau-varphi(x)-2tau-varphi(x)-2tau-varphi(-x)-2tau-varphi(-x)-tau)(n) and (varphi(0))(x)-(tau-varphi(x)-2tau-varphi(y)-tau)(n) in (14)N nuclear quadrupole resonance is presented. It was demonstrated that the SLSE effect is observed only in the even pulse intervals of both sequences. All experiments were carried out at room temperature on a powder sample of NaNO2. A theoretical description of the effect is given.
给出了在(^{14}N)核四极共振中，在两个多脉冲序列((\varphi(0))(x)-(\tau-\varphi(x)-2\tau-\varphi(x)-2\tau-\varphi(-x)-2\tau-\varphi(-x)-\tau)_n)和((\varphi(0))(x)-(\tau-\varphi(x)-2\tau-\varphi(y)-\tau)_n)的场中观察到相当不寻常的自旋锁定自旋回波（SLSE）效应的实验证据。结果表明，仅在两个序列的偶数脉冲间隔中观察到SLSE效应。所有实验均在室温下对(NaNO_2)粉末样品进行。给出了该效应的理论描述。
