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
Cross-correlated relaxation measurements under adiabatic sweeps: determination of local order in proteins.
Pavel Kadeřávek,Sarina Grutsch,Nicola Salvi,Martin Tollinger,Lukáš Žídek,Geoffrey Bodenhausen,Fabien Ferrage,Fabien Ferrage,Fabien Ferrage +8 more
TL;DR: A strategy for measuring cross-correlated cross-relaxation (CCCR) rates during adiabatic pulses is developed and a linear combination of longitudinal and transverse CCCR rates are provided, which is offset-independent across a typical amide spectrum.
Journal ArticleDOI
Optimising broadband pulses for DEER depends on concentration and distance range of interest
TL;DR: In this paper, the authors compare the most common broadband pulses for short double electron-electron resonance (DEER) traces and show that broadband pulses can increase the background decay of the DEER trace.
Journal ArticleDOI
The effects of molecular diffusion in spatially encoded magnetic resonance imaging
TL;DR: It is shown that losses due to diffusion are often not uniform along the spatially encode dimension, and how to adapt spatially encoded sequences in order to obtain uniformly diffusion-weighted images is adapted.
Journal ArticleDOI
Numerical Engineering of Robust Adiabatic Operations
Sahand Tabatabaei,Holger Haas,William B. Rose,Ben Yager,Michèle Piscitelli,Pardis Sahafi,Andrew Jordan,Philip J. Poole,Dan Dalacu,Raffi Budakian,Raffi Budakian +10 more
TL;DR: In this paper, a gradient-based optimization protocol that combines adiabatic control with effective Hamiltonian engineering is proposed to design robust operations tailored to the specific imperfections and resources of an experimental setup.
Journal ArticleDOI
Magnetic Resonance Imaging on Sodium Nuclei: Potential Medical Applications of 23Na MRI
E. G. Sadykhov,Yu. A. Pirogov,Nikolay V. Anisimov,Mikhail V. Gulyaev,Galina E. Pavlovskaya,Thomas Meersmann,V.N. Belyaev,D. V. Fomina +7 more
TL;DR: 23Na magnetic resonance imaging is a quantitative method that allows to determine the sodium content in tissues and organs in vivo and is used as a clinical research tool to investigate diseases such as brain tumors, breast cancer, stroke, multiple sclerosis, hypertension, diabetes, ischemic heart disease, osteoarthritis.
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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