- energy relaxation time
- время релаксации энергии
English-russian dictionary of physics. 2013.
energy relaxation time
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Relaxation time — is a general concept in physics for the characteristic time in which a system changes to an equilibrium condition from a non equilibrium condition. It can measure the time dependent response of a system to well defined external stimuli.… … Wikipedia
relaxation time — noun the time constant of an exponential return of a system to equilibrium after a disturbance (Freq. 2) • Hypernyms: ↑time constant * * * noun 1. : the time required for an exponentially decreasing variable (as the amplitude of a damped… … Useful english dictionary
T1 relaxation time — a component of relaxation time representing the time required for longitudinal magnetization of a substance to return to equilibrium with its surroundings after administration of a pulse of radiofrequency energy; different substances have… … Medical dictionary
T2 relaxation time — a component of relaxation time representing the time required for decay or loss of transverse magnetization after administration of a pulse of radiofrequency energy; different substances have different times that are measured in magnetic… … Medical dictionary
relaxation time — any of several measures of loss of energy by magnetized materials (particularly hydrogen ions) after a magnetizing current is cut off; in magnetic resonance imaging two particularly useful measures are T1 relaxation t. and T2 relaxation t. (q.v.) … Medical dictionary
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
Vibrational energy relaxation — Vibrational energy relaxation, or vibrational population relaxation, is a process in which the population distribution of molecules in vibrationally quantum states of high energy level caused by an external perturbation returns to the Maxwell… … Wikipedia
Relaxation — may refer to: *Human relaxation is the art and science of doing nothing regardless of the outer activity including physical and/or mental tension. A human condition of flowing vital energy binging about a state of improved health and well being.… … 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
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
