spin-state relaxation

spin-state relaxation
Макаров: релаксация спинового состояния

Универсальный англо-русский словарь. . 2011.

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  • 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

  • relaxation phenomenon — ▪ physics and chemistry Introduction       in physics and chemistry, an effect related to the delay between the application of an external stress to a system that is, to an aggregation of matter and its response. It may occur in nuclear, atomic,… …   Universalium

  • Relaxation (NMR) — In nuclear magnetic resonance (NMR) spectroscopy and magnetic resonance imaging (MRI) the term relaxation describes several processes by which nuclear magnetization prepared in a non equilibrium state return to the equilibrium distribution. In… …   Wikipedia

  • 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

  • Relaxation (physics) — In the physical sciences, relaxation usually means the return of a perturbed system into equilibrium. Each relaxation process can be characterized by a relaxation time τ. The simplest theoretical description of relaxation as function of time t is …   Wikipedia

  • relaxation — 1. Loosening, lengthening, or lessening of tension in a muscle. 2. In nuclear magnetic resonance, r. is the decay in magnetization of protons after the direction of the surrounding magnetic field is changed; the different rates of r. for… …   Medical dictionary

  • Steady-state free precession imaging — Steady state free precession (SSFP) imaging is a magnetic resonance imaging (MRI) technique which uses steady states of magnetizations. In general, SSFP MRI sequences are based on a (low flip angle) gradient echo MRI sequence with a short… …   Wikipedia

  • Muon spin spectroscopy — is an experimental technique based on the implantation of spin polarized muons in matter and on the detection of the influence of the atomic, molecular or crystalline surroundings on their spin motion. The motion of the muon spin is due to the… …   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

  • Hyperintens — MRT Gerät (Philips 3T Achieva) MR Aufnahme eines menschlichen Kniegelenks Die Magnetresonanztomographie (MRT, kurz auch MR; Tomographie von …   Deutsch Wikipedia

  • Hyperintensität — MRT Gerät (Philips 3T Achieva) MR Aufnahme eines menschlichen Kniegelenks Die Magnetresonanztomographie (MRT, kurz auch MR; Tomographie von …   Deutsch Wikipedia


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