Pulse sequence

Pulse sequence

In Fourier Transform NMR spectroscopy and imaging, a pulse sequence describes a series of radio frequency pulses applied to the sample, such that a free induction decay is induced whose signal can be recorded in the time domain. After applying a Fourier Transform, the signal can be represented in the frequency domain as the NMR spectrum. In Magnetic Resonance Imaging, additional "gradient pulses" are being applied by switching magnetic fields that exhibit a space-dependent gradient which can be used to reconstruct, after Fourier Transform, spatially resolved imagescite book
author = Bernstein, M.A.
coauthors = King, K.E.; Zhou, X.J.; Fong, W.
year = 2004
title = Handbook of MRI Pulse Sequences
url = http://www.science-direct.com/science/book/9780120928613
accessdate = 2008-04-08] .

References

See also

* Spin echo

External links

* [http://www.cis.rit.edu/htbooks/nmr/chap-6/chap-6.htm Pulse sequences] in the online textbook [http://www.cis.rit.edu/htbooks/nmr/ The Basics of NMR] (by Joseph Hornak)


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  • pulse sequence — impulsų seka statusas T sritis automatika atitikmenys: angl. pulse sequence; pulse series; train of impulses vok. Impulsfolge, f; Impulsreihe, f rus. последовательность импульсов, f pranc. série d impulsions, f; train d impulsions, m …   Automatikos terminų žodynas

  • pulse sequence — impulsų seka statusas T sritis fizika atitikmenys: angl. impulse series; pulse sequence; pulse series vok. Impulsfolge, f; Impulsreihe, f rus. последовательность импульсов, f; серия импульсов, f pranc. série d’impulsions, f; train d’impulsions, m …   Fizikos terminų žodynas

  • pulse sequence — in magnetic resonance imaging, the order, spacing, and type of radio frequency pulses that produce magnetic resonance images according to changes in the gradients of the magnetic field …   Medical dictionary

  • pulse series — impulsų seka statusas T sritis automatika atitikmenys: angl. pulse sequence; pulse series; train of impulses vok. Impulsfolge, f; Impulsreihe, f rus. последовательность импульсов, f pranc. série d impulsions, f; train d impulsions, m …   Automatikos terminų žodynas

  • pulse series — impulsų seka statusas T sritis fizika atitikmenys: angl. impulse series; pulse sequence; pulse series vok. Impulsfolge, f; Impulsreihe, f rus. последовательность импульсов, f; серия импульсов, f pranc. série d’impulsions, f; train d’impulsions, m …   Fizikos terminų žodynas

  • Pulse compression — is a signal processing technique mainly used in radar, sonar and echography to augment the range resolution as well as the signal to noise ratio. This is achieved by modulating the transmitted pulse and then correlating the received signal with… …   Wikipedia

  • pulse modulation — n. 1. the formation of an intermittent carrier wave by the generation and transmission of a sequence of short, periodic pulses: used in radar 2. the modulation of the amplitude, a characteristic, etc. of a sequence of pulses in order to convey… …   Universalium

  • pulse modulation — n. 1. the formation of an intermittent carrier wave by the generation and transmission of a sequence of short, periodic pulses: used in radar 2. the modulation of the amplitude, a characteristic, etc. of a sequence of pulses in order to convey… …   English World dictionary

  • Pulse-chase — Synthèse des protéines Procédé général La synthèse des protéines est le processus par lequel une cellule assemble une chaîne protéique en combinant des acides aminés isolés présents dans son cytoplasme, guidé par l information contenue dans l ADN …   Wikipédia en Français

  • Pulse — The rhythmic dilation of an artery resulting from beating of the heart. It is often measured by feeling the arteries of the wrist. * * * Rhythmic dilation of an artery, produced by the increased volume of blood thrown into the vessel by the… …   Medical dictionary

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