@article {353,
	title = {Variable rotation composite pulses for high resolution nuclear magnetic resonance using inhomogeneous magnetic and radiofrequency fields},
	journal = {Chemical Physics Letters},
	volume = {363},
	year = {2002},
	note = {Chem Phys Lett591TPTimes Cited:17Cited References Count:23},
	month = {Sep 2},
	pages = {25-33},
	abstract = {<p>An approach toward high-resolution NMR spectroscopy on samples located outside the physical confines of a magnet (ex situ NMR), has recently been described [C.A. Meriles, D. Sakellariou, H. Heise, A.J. Moule, A. Pines, Science 293 (2001) 82]. Nutation echoes are generated by a train of z-rotation pulses in the presence of spatially matched static and rf field gradients. These pulses were based on a combination of \&$\#$39;perfect\&$\#$39; pi/2 constant rotation composite pulses and \&$\#$39;imperfect\&$\#$39; ordinary pulses of variable length. Here we introduce a new class of \&$\#$39;self-compensated\&$\#$39; z-rotation composite pulses based only on variable rotation inversion pulses that lead to an rf dependent phase shift. Experiments and simulations show that these new pulses perform well at high B-0 gradients and require less rf power than previous schemes. (C) 2002 Elsevier Science B.V. All rights reserved.</p>
},
	keywords = {echoes},
	isbn = {0009-2614},
	doi = {Doi 10.1016/S0009-2614(02)01116-8},
	url = {<Go to ISI>://WOS:000177896600005},
	author = {Sakellariou, D. and Meriles, C. A. and Moule, A. and Pines, A.}
}
