resistive magnet

resistive magnet

[resis′tiv]
a simple electromagnet in which electricity passing through coils of wire produces a magnetic field.

resistive magnet

An MRI term for a conventional magnet that generates a magnetic field based on principles of electromagnetism, and requires large current values and significant magnet coil cooling. Resistive magnets are typically limited to maximum field strengths of ± 0.6T.

Types
• Iron-core electromagnets—Vertically-oriented magnetic field, limited fringe field, little missile effect due to the closed iron-flux return path.
• Air-core electromagnets—Horizontally oriented fields with large fringe fields (unless magnetically shielded); prone to missile effects.
References in periodicals archive ?
According to Jingping Chen, manager of the resistive magnet program at the magnet lab, the upgrade of the magnet is just a start, and that major upgrades are planned for many of the resistive magnets at the laboratory.
Resistive magnets are built in-house at the magnet lab using so-called Florida Bitter technology pioneered by researchers there.
But comparing with traditional resistive magnets or superconductive magnets pulsed technologies for high magnetic field generation is very attractive because do not require great investments [2].
FONAR went on to become the innovative force behind all three magnet types in use today, namely superconducting, permanent and resistive magnets.
The trick, Conolly says, is to use two inexpensive resistive magnets instead of an expensive superconducting magnet.