magnetic field

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Related to magnetic field strength: magnetic flux density


1. an area or open space, as an operative field or visual field.
2. a range of specialization in knowledge, study, or occupation.
3. in embryology, the developing region within a range of modifying factors.
auditory field the space or range within which stimuli will be perceived as sound.
disturbed energy field a nursing diagnosis defined as a disruption of the flow of energy surrounding a person's being that results in disharmony of the body, mind, and/or spirit.
energy field the flow of energy surrounding a person.
extended field in radiation therapy, such as for malignant lymphoma, an area of irradiation beyond the involved field. See also under irradiation.
high-power field the area of a slide visible under the high magnification system of a microscope.
individuation field a region in which an organizer influences adjacent tissue to become a part of a total embryo.
inverted Y field in radiation therapy, such as for malignant lymphoma, a circumscribed area of irradiation below the diaphragm, covering the spleen, extending down the midline, and branching inferiorly to form tails across the inguinal areas.
involved field in radiation therapy, such as for malignant lymphoma, the irradiated area when irradiation has been limited to sites of detectable macroscopic disease. See also under irradiation.
low-power field the area of a slide visible under the low magnification system of a microscope.
magnetic field that portion of space about a magnet in which its action is perceptible.
mantle field in radiation therapy, such as for malignant lymphoma, a circumscribed area of irradiation around the shoulders and chest, including the neck, clavicular regions, axillae, and mediastinum. See also under irradiation.
morphogenetic field an embryonic region out of which definite structures normally develop.
operating field (operative field) an isolated area where surgery is performed; it must be kept sterile by aseptic techniques (see surgical asepsis). Called also surgical field.
sterile field an operative field that is properly sterile according to surgical asepsis. It includes having all furniture and equipment covered with sterile drapes and all personnel being properly attired.
surgical field operative field.
visual field (F) (vf) the area within which stimuli will produce the sensation of sight with the eye in a straight-ahead position.

mag·net·ic field

the sphere of influence of a magnet.

magnetic field

Etymology: Gk, magnesia, lodestone; AS, feld
the region around any magnet in which its effects can be detected.

magnetic field

An MRI term for the magnetic lines of force (flux) which extend from a north polarity and enter a south polarity of a magnet to form a closed loop around the outside of a magnetic material.

Magnetic field

The three-dimensional area surrounding a magnet, in which its force is active. During MRI, the patient's body is permeated by the force field of a superconducting magnet.

magnetic field (MF),

n the lines of force that surround a moving charged particle or a magnet.
References in periodicals archive ?
magnetic field strength, therefore, once magnetorheological fluid's magnetic field strength is calculated, yield stress figures are available.
This limitation holds regardless of magnetic field strength and becomes a very realistic limitation at 3T.
The coil was driven by a 24 V DC current capable of generating a maximum magnetic field strength of [H.
Magnetic force incurs on working fluid when it move pass magnetic field strength with high electric conductivity.
In addition, MCGs were better able to identify differences in the distribution of cardiac magnetic field strength during repolarisation and depolarisation between normal subjects and cardiac patients.
Unfortunately, initial studies of nanodots revealed a large variation in magnetic field strength needed to flip each dot's magnetic orientation.
in the strongly magnetic white dwarf stars (the polar magnetic field strength can be as large as up to about [5.
Thanks to axial symmetry, the magnetic field offaxis, outside its sources, can be represented in terms of the magnetic field strength B(x, 0) along the axis:
Low intensity separators usually generate a magnetic field strength of less than 2,000 gauss or 0.
4 m, magnetic field strength up to 2 T, with 6 MW of neutral beam heating, 6 MW of ion cyclotron heating and 3 MW of electron cyclotron heating.
New products and markets have not emerged because of the major drawback of permanent magnets: Their energy output is fixed and therefore they cannot be employed if a variation in the magnetic field strength is required.