- nuclear spin echo
- Техника: спиновое эхо
Универсальный англо-русский словарь. Академик.ру. 2011.
nuclear spin echo
Смотреть что такое "nuclear spin echo" в других словарях:
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… … Medical dictionary
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
Nuclear magnetic resonance in porous media — Nuclear magnetic resonance (NMR) in porous media covers the application of using NMR as a tool to study the structure of porous media and various processes occurring in them.[1] This technique allows the determination of characteristics such as… … Wikipedia
Spin-spin relaxation time — Spin spin relaxation time, known as T2, is a time constant in Nuclear Magnetic Resonance and Magnetic Resonance Imaging. It is named in contrast to T1, the spin lattice relaxation time.T2 characterizes the rate at which the Mxy component of the… … Wikipedia
Spin-lattice relaxation time — Spin lattice relaxation time, known as T1, is a time constant in Nuclear Magnetic Resonance and Magnetic Resonance Imaging. It is named in contrast to T2, the spin spin relaxation time.T1 characterizes the rate at which the longitudinal Mz… … Wikipedia
Nuclear magnetic resonance — This article is about the physical phenomenon. For its use as a method in spectroscopy, see Nuclear magnetic resonance spectroscopy. NMR redirects here. For other uses, see NMR (disambiguation). First 1 GHz NMR Spectrometer (1000 MHz,… … Wikipedia
Nuclear Overhauser effect — The Nuclear Overhauser Effect (NOE) is the transfer of nuclear spin polarization from one nuclear spin population to another via cross relaxation. It is a common phenomenon observed by nuclear magnetic resonance (NMR) spectroscopy. The… … Wikipedia
Solid-state nuclear magnetic resonance — (NMR) spectroscopy, characterized by the presence of anisotropic (directionally dependent) interactions.IntroductionBasic conceptsA spin interacts with a magnetic or an electric field. Spatial proximity and/or a chemical bond between two atoms… … Wikipedia
Two-dimensional nuclear magnetic resonance spectroscopy — (2D NMR) is a set of nuclear magnetic resonance spectroscopy (NMR) methods which give data plotted in a space defined by two frequency axes rather than one. Types of 2D NMR include correlation spectroscopy (COSY), J spectroscopy, exchange… … Wikipedia
gradient echo — n a signal that is detected in a nuclear magnetic resonance spectrometer that is analogous to a spin echo but is produced by varying the external magnetic field following application of a single radio frequency pulse rather than by application of … Medical dictionary
