PatentDOI
Adiabatic pulses for wideband inversion and broadband decoupling
TLDR
In this article, an inversion pulse for wideband application is obtained from a simple nonlinear amplitude modulation wherein the amplitude is modulated in accord with A(t)=A 0 {1-| sin βt| n } and the entire pulse is frequency modulated such that the phase varies as φ(t) =φ 0 + 1/2 kt 2About:
This article is published in Journal of Magnetic Resonance, Series A.The article was published on 1996-07-26. It has received 538 citations till now. The article focuses on the topics: Amplitude modulation & Amplitude.read more
Citations
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Journal ArticleDOI
Comparing the Potential of Helmholtz and Planar NMR Microcoils for Analysis of Intact Biological Samples.
Monica Bastawrous,O. G. Gruschke,Ronald Soong,Amy Jenne,Dieter Gross,Falko Busse,Ben Nashman,Andressa Lacerda,André J. Simpson +8 more
TL;DR: In this article , the authors compare the potential of planar and Helmholtz microcoil designs to execute complex experiments for the analysis of intact, mass-limited biological samples.
Journal ArticleDOI
Sensitivity-enhanced multiple-quantum MAS NMR for half-integer spin quadrupolar nuclei using WURST-amplitude shaped pulses
TL;DR: It is shown that rf-pulses with smoothly truncated amplitude profiles, which are termed WURST-Amplitude Shaped Pulses (WASPs), intrinsically possess a higher potential for nutation-based 3Q excitation involving spin-3/2 and 3Q and 5Qexcitation for spin-5/2 quadrupolar nuclei, specifically when large nutation frequencies are available.
Journal ArticleDOI
Steady-State Free Precession and Solid-State NMR: How, When, and Why
TL;DR: In this article, a well-established technique, to study crystalline and amorphous solids, that provides rich structural and dynamical insights, is described, and many solids NMR experiments, howev...
Journal ArticleDOI
Assessment of new symmetry-based dipolar recoupling schemes for homonuclear magnetization exchange between quadrupolar nuclei in two-dimensional correlation MAS NMR.
TL;DR: An extensive experimental and numerical evaluation of MQ-phase (S)M supercycles with M={3,4} of three groups of symmetry-based homonuclear dipolar recoupling rf-pulse sequences for establishing proximities among half-integer spin quadrupolar nuclei under moderately fast magic-angle-spinning (MAS) conditions in single-quantum-single-quantums (1Q-1Q) correlation NMR experiments.
References
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PatentDOI
Methods of, and apparatus for, proton decoupling in nuclear magnetic resonance spectroscopy
TL;DR: In this paper, a radio-frequency pulse is tuned to the frequency of the nuclear species, such as 1 H, to be decoupled or saturated and has a bandwidth adjusted to correspond to the entire chemical shift spectrum, minimizing the amount of radiofrequency power transmitted into a volume of the irradiated sample.
Patent
RF pulse cascade for the generation of NMR spectra
TL;DR: In this article, a method for generating a spectrum of NMR signals with rectangular characteristic in the frequency space by radiating a sequence of RF pulses onto a sample in the homogeneous magnetic field is presented.
PatentDOI
Method and apparatus for broadband decoupling in nuclear magnetic resonance with chirp pulses
Riqiang Fu,Geoffrey Bodenhausen +1 more
TL;DR: In this article, the authors proposed a method for broadband decoupling in nuclear magnetic resonance with chirp and other RF pulses, where the sample is placed in a static field, and a first cycle of chirps pulses are generated, followed by a second cycle of pulses generated by a supercycle of the first and second cycles.
Patent
Method for exciting transverse magnetization in magnetic resonance
TL;DR: In this article, a method for exciting transverse magnetization by irradiating a nuclear spin system subjected to a constant magnetic field with a frequency-modulated rf-pulse ("chirp"-pulse) and with a further frequency-modified rfpulse (further chirppulse), for refocusing the magnetization, is characterized in that the rf pulse-(P1) and the further pulse (P2) overlap each other in time at least partially.
PatentDOI
Method for determining optimized radio-frequency pulse shapes for selective excitation in magnetic resonance spectroscopy and imaging
TL;DR: In this paper, a spin system with a frequency-selective radio-frequency (RF) pulse was used for magnetic resonance spectroscopy and imaging, and the shape of the pulse was optimized.
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