spin echo


spin echo
spin echo n a signal that is detected in a nuclear magnetic resonance spectrometer, that is an echo-like replication of a free induction decay produced by a planned series of radio-frequency pulses, and that can be used to extract more information from a test sample or subject than conventional nuclear magnetic resonance spectroscopy usu. used attributively <spin-echo magnetic resonance imaging of the cervical spine> compare GRADIENT ECHO

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a signal generated by a previously magnetized substance a short time after the components of magnetization have been refocused or rephased by application of a pulse of radio frequency energy or by a rapid change in magnetic field gradient; it can then be received by a receiver coil for generating the images of magnetic resonance imaging.

Medical dictionary. 2011.

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  • Spin echo — In nuclear magnetic resonance, spin echo refers to the refocusing of precessing nuclear spin magnetisation by a 180° pulse of resonant radiofrequency.The NMR signal observed following an initial excitation pulse (orange in diagram) decays with… …   Wikipedia

  • Spin-Echo — Die grafische Animation eines Spin Echos zeigt die Veränderung der Spins (rote Pfeile) in der Bloch Kugel (blau) als Reaktion auf das äußere Magnetfeld Das Spin Echo ist ein Effekt der Quantenmechanik, der insbesondere zur Messung von… …   Deutsch Wikipedia

  • spin echo — sukininis aidas statusas T sritis fizika atitikmenys: angl. spin echo vok. Spinecho, n rus. спиновое эхо, n pranc. écho de spin, m …   Fizikos terminų žodynas

  • spin-echo method — sukininio aido metodas statusas T sritis fizika atitikmenys: angl. spin echo method vok. Spinechomethode, f; Spinechoverfahren, n rus. метод спинового эха, m pranc. méthode de l’écho de spin, f; méthode de spin écho, f …   Fizikos terminų žodynas

  • spin-echo spectrometer — sukininio aido spektrometras statusas T sritis fizika atitikmenys: angl. spin echo spectrometer vok. Spinechospektrometer, n rus. спектрометр для спинового эхо, m pranc. spectromètre à spin écho, m …   Fizikos terminų žodynas

  • Spin-Echo-Verfahren — Spịn Ẹcho Verfahren,   NMR Spektroskopie …   Universal-Lexikon

  • Neutron spin echo — Science with Neutrons Foundations Neutron temperature Flux · Radiation  …   Wikipedia

  • Neutron spin echo — Spectroscopie à écho de spin La technique de Spectroscopie Neutronique à Echo de Spin ou Neutron spin echo a été proposée en 1971 par le Pr. Ferenc Mezei. Son utilisation sur la base de spectromètres à trois axes permet d améliorer leur… …   Wikipédia en Français

  • méthode de spin-écho — sukininio aido metodas statusas T sritis fizika atitikmenys: angl. spin echo method vok. Spinechomethode, f; Spinechoverfahren, n rus. метод спинового эха, m pranc. méthode de l’écho de spin, f; méthode de spin écho, f …   Fizikos terminų žodynas

  • spectromètre à spin-écho — sukininio aido spektrometras statusas T sritis fizika atitikmenys: angl. spin echo spectrometer vok. Spinechospektrometer, n rus. спектрометр для спинового эхо, m pranc. spectromètre à spin écho, m …   Fizikos terminų žodynas


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