Magnetic resonance imaging device with an active shielding device

The present invention relates to a magnetic resonance imaging (MRI) device. The basic components of an MRI device are the main magnet system, the gradient system, the RF system and the signal processing system. According to the present invention the magnetic resonance imaging device comprises at lea...

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Bibliographische Detailangaben
Hauptverfasser:	ROOZEN NICOLAAS B, ANGELIS GEORGO Z, TOMA ADRIAN
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES MAGNETS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TESTING TRANSFORMERS
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Beschreibung
Zusammenfassung:	The present invention relates to a magnetic resonance imaging (MRI) device. The basic components of an MRI device are the main magnet system, the gradient system, the RF system and the signal processing system. According to the present invention the magnetic resonance imaging device comprises at least one active shielding device ( 19, 20 ) assigned to the main magnet system ( 2 ), wherein the or each is driven by an electrical current in order to reduce magnetic field penetration inside the main magnet system and to reduce mechanical forces induced in the main magnet