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
Sensitivity losses and line shape modifications due to molecular diffusion in continuous encoding ultrafast 2D NMR experiments.
Patrick Giraudeau,Serge Akoka +1 more
TL;DR: A detailed theoretical and experimental study of the various continuous ultrafast excitation processes is carried out and the experimental and theoretical results put in evidence the efficiency of the multi-echo scheme.
Journal ArticleDOI
1H-detected 13C Photo-CIDNP as a Sensitivity Enhancement Tool in Solution NMR
TL;DR: The sensitivity of this experiment, defined as signal-to-noise per square root of unit time (S/N)(t), is unprecedented in the NMR polarization enhancement literature dealing with polypeptides in solution.
Journal ArticleDOI
Enhanced efficiency of solid-state NMR investigations of energy materials using an external automatic tuning/matching (eATM) robot
Oliver Pecher,David M. Halat,Jeongjae Lee,Zigeng Liu,Kent J. Griffith,Marco Braun,Clare P. Grey +6 more
TL;DR: An external automatic tuning/matching (eATM) robot that can be attached to commercial and/or home-built magic angle spinning (MAS) or static nuclear magnetic resonance (NMR) probeheads is developed and explored, enabling automated measurements of multiple nuclei for one sample with no manual adjustment required by the user.
Journal ArticleDOI
Structural Study of La1–xYxScO3, Combining Neutron Diffraction, Solid-State NMR, and First-Principles DFT Calculations
TL;DR: The solid solution La1-xYxScO3 (x = 0, 0.2, 0., 0.4,0.6, 0; 0.8, and 1) has been successfully synthesized using conventional solid-state techniques as discussed by the authors.
Journal ArticleDOI
Use of magnetic resonance spectroscopy for the investigation of the CO2 dissolved in champagne and sparkling wines: a nondestructive and unintrusive method
Gwennhael Autret,Gérard Liger-Belair,Jean-Marc Nuzillard,Maryline Parmentier,Anne Dubois de Montreynaud,Philippe Jeandet,Bich-Thuy Doan,Jean-Claude Beloeil +7 more
TL;DR: In this article, an imaging spectrometer with the 13 C Magnetic Resonance Spectroscopy (MRS) technique is used to determine the amount of CO 2 dissolved in a closed bottle of Champagne or Sparkling wine as well as the self-diffusion of CO2 in this matrix.
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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