Communication: Phase incremented echo train acquisition in NMR spectroscopy
نویسندگان
چکیده
منابع مشابه
Communication: Phase incremented echo train acquisition in NMR spectroscopy.
We present an improved and general approach for implementing echo train acquisition (ETA) in magnetic resonance spectroscopy, particularly where the conventional approach of Carr-Purcell-Meiboom-Gill (CPMG) acquisition would produce numerous artifacts. Generally, adding ETA to any N-dimensional experiment creates an N + 1 dimensional experiment, with an additional dimension associated with the ...
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A general approach for enhancing sensitivity of nuclear magnetic resonance sideband separation experiments, such as Two-Dimensional One Pulse (TOP), Magic-Angle Turning (MAT), and Phase Adjust Spinning Sidebands (PASS) experiments, with phase incremented echo-train acquisition (PIETA) is described. This approach is applicable whenever strong inhomogeneous broadenings dominate the unmodulated fr...
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We report electric field induced phase displacements of the charge density wave (CDW) in a single crystal of NbSe3 using 93Nb NMR spin-echo spectroscopy. CDW polarizations in the pinned state induced by unipolar and bipolar pulses are linear and reversible up to at least E = (0.96)ET. The polarizations have a broad distribution extending up to phase angles of order 60 degrees for electric field...
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An outline is given for calculating the evolution of a spin system by a pulse sequence with phase-incremented pulses (PIPs). It is done in a frame with a speed of 2pideltaf=deltaphi/deltatau relative to the rotating frame, where deltaphi and deltatau are the phase- and time-increment of the PIP. This particular frame is defined as the eigenframe, in which the phase of the PIP for the center ban...
متن کاملThe shifted radial reordering for intermediate TE imaging in 3D long echo train acquisition
Introduction Use of nonselective pulses and modulated flip angles (aka SPACE, [2, 3, 4]) in refocusing pulses improves the sampling efficiency in 3D turbo spin echo imaging. Two flexible reordering schemes, the linear mode and the radial mode, have been proposed [1] to circumvent some intrinsic limitations of the rectangular kspace sampling grid (e.g., allowing for flexible k-space coverage) in...
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ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2012
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.4728105