Journal ArticleDOI
Evaluation of a new broadband decoupling sequence: WALTZ-16
TLDR
In this article, a new scheme for low-power broadband heteronuclear decoupling is described, based on the use of a composite radiofrequency pulse sequence 90°( + X ) 180°(− X ) 270°(+ X ), incorporated into a repeated cycle or supercycle.About:
This article is published in Journal of Magnetic Resonance.The article was published on 1983-06-15. It has received 728 citations till now. The article focuses on the topics: Decoupling (electronics).read more
Citations
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Journal ArticleDOI
MLEV-17-based two-dimensional homonuclear magnetization transfer spectroscopy
Ad Bax,Donald G. Davis +1 more
TL;DR: In this article, a new mixing scheme based on the MLEV-16 composite pulse decoupling cycle (II) was proposed, which is less sensitive to pulse imperfections and provides net magnetization transfer over a substantial bandwidth with only limited rf power.
Journal ArticleDOI
An Improved Broadband Decoupling Sequence for Liquid Crystals and Solids
TL;DR: It is found that a stepwise variation of the phase angle in the TPPM sequence offers even better results, and the application of this new method to a liquid crystalline compound and a solid, L-tyrosine hydrochloride, is reported.
Journal ArticleDOI
Computer-optimized decoupling scheme for wideband applications and low-level operation
TL;DR: In this paper, the WALTZ-16 decoupling scheme was used for carbon-l 3 linewidth modulation with a 40% improvement in bandwidth over the original Waltz-16.
Journal ArticleDOI
Iterative schemes for bilinear operators; application to spin decoupling
TL;DR: A new series of broadband heteronuclear decoupling sequences, called the DIPSI sequences, which give better quality decouplings of protons from carbon-13 than previous sequences like WALTZ-16 when there is scalar coupling among the protons.
Journal ArticleDOI
New, compensated Carr-Purcell sequences
TL;DR: In this article, a new, compensated Carr-Purcell pulse sequences are reported, all based on x and y phase alternation of the π pulses, which compensate cumulative pulse errors for all three components of magnetization.
References
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Journal ArticleDOI
An improved sequence for broadband decoupling: WALTZ-16
TL;DR: In this paper, the effects of the proton irradiation sequence by means of a train of spin rotation operators, the overall effect at the end of the cycle being calculated by explicit matrix multiplication, the offset dependence of this proton response determined the residual splitting of the carbon-13 resonance and hence the effectiveness of the decoupling.
Journal ArticleDOI
Coherent Averaging Effects in Magnetic Resonance
U. Haeberlen,J. S. Waugh +1 more
TL;DR: In this paper, a theory is developed to describe the slow component of the transient decay of transverse spin magnetization, and the central component of slow-passage absorption spectrum, of a system of spins which is subjected to a periodic and cyclic perturbation.
Journal ArticleDOI
Natural abundance carbon-13-carbon-13 coupling observed via double-quantum coherence
Journal ArticleDOI
Fourier Transform Study of NMR Spin-Lattice Relaxation by "Progressive Saturation"
Ray Freeman,Howard D. W. Hill +1 more
TL;DR: In this paper, a steady state is established where there is a dynamic balance between the effect of the pulses and spin relaxation, and the deviation of the intensity of the free induction signal from its thermal equilibrium value is an exponential function of the pulse interval with time constant equal to the spin-lattice relaxation time.
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