Chinese Journal of Magnetic Resonance ›› 1989, Vol. 6 ›› Issue (4): 431-438.
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Li Gengying, Wu Xuewen
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Abstract: A pulse sequence 45x°-t1-90±y°-t2 is proposed for the spin echo of I=3/2 spin systems in powder samples, which is confirmed theoretically and experimentally. It can effectively refocuse the magnetization of the central transition in spin-3/2 quadrupole nuclear systems. And the numerical calculated excitation bandwidth of the echo sequence is also given.
Key words: Powder sample, Echo sequence, Central transition
Li Gengying, Wu Xuewen. NMR ECHO SEQUENCE IN THE CENTRAL TRANSITION OF SPIN-3/2 QUADRUPOLAR SYSTEMS IN POWDERED SAMPLES[J]. Chinese Journal of Magnetic Resonance, 1989, 6(4): 431-438.
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http://magres.apm.ac.cn/EN/Y1989/V6/I4/431
