Magnetic resonance is a process by which a physical
excitation
Excitation, excite, exciting, or excitement may refer to:
* Excitation (magnetic), provided with an electrical generator or alternator
* Excite Ballpark, located in San Jose, California
* Excite (web portal), web portal owned by IAC
* Electron exc ...
(
resonance
Resonance describes the phenomenon of increased amplitude that occurs when the frequency of an applied periodic force (or a Fourier component of it) is equal or close to a natural frequency of the system on which it acts. When an oscillatin ...
) is set up via
magnetism
Magnetism is the class of physical attributes that are mediated by a magnetic field, which refers to the capacity to induce attractive and repulsive phenomena in other entities. Electric currents and the magnetic moments of elementary particles ...
.
This process was used to develop
magnetic resonance imaging
Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio wave ...
and
Nuclear magnetic resonance spectroscopy technology.
It is also being used to develop
Nuclear magnetic resonance quantum computer
Nuclear magnetic resonance quantum computing (NMRQC) is one of the several proposed approaches for constructing a quantum computer, that uses the spin states of nuclei within molecules as qubits. The quantum states are probed through the nuclear ma ...
s.
History
The first observation of
electron-spin resonance was in 1944 by Y. K. Zavosky, a Soviet physicist then teaching at
Kazan State University (now Kazan Federal University). Nuclear magnetic resonance was first observed in 1946 in the US by a team led by
Felix Bloch at the same time as a separate team led by
Edward Mills Purcell
Edward Mills Purcell (August 30, 1912 – March 7, 1997) was an American physicist who shared the 1952 Nobel Prize for Physics for his independent discovery (published 1946) of nuclear magnetic resonance in liquids and in solids. Nuclear magne ...
, the two of whom would later be the 1952 Nobel Laureates in Physics.
See also
*
Resonant inductive coupling, a method of transferring electrical power
*
Magnetic resonance (quantum mechanics)
In quantum mechanics, magnetic resonance is a resonant effect that can appear when a magnetic dipole is exposed to a static magnetic field and perturbed with another, oscillating electromagnetic field. Due to the static field, the dipole can as ...
, a quantum resonance process
*
Nuclear magnetic resonance, a special case
*
Giant resonance Giant resonance is a high-frequency collective excitation of atomic nuclei, as a property of many-body quantum systems. In the macroscopic interpretation of such an excitation in terms of an oscillation, the most prominent giant resonance is a colle ...
*
Electron paramagnetic resonance
Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a method for studying materials that have unpaired electrons. The basic concepts of EPR are analogous to those of nuclear magnetic resonance (NMR), but the spin ...
References
Magnetic resonance imaging
Magnetism
Physical phenomena
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