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ARRANGEMENT TO GENERATE THE BASIC MAGNETIC FIELD AND A GRADIENT MAGNETIC FIELD OF A MAGNETIC RESONANCE TOMOGRAPHY SYSTEM, AND METHOD TO OPERATE A MAGNETIC RESONANCE TOMOGRAPHY SYSTEM
ARRANGEMENT TO GENERATE THE BASIC MAGNETIC FIELD AND A GRADIENT MAGNETIC FIELD OF A MAGNETIC RESONANCE TOMOGRAPHY SYSTEM, AND METHOD TO OPERATE A MAGNETIC RESONANCE TOMOGRAPHY SYSTEM
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机译:产生磁共振断层摄影系统的基本磁场和梯度磁场的装置以及操作磁共振断层摄影系统的方法
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摘要
An arrangement to generate a basic magnetic field and a gradient magnetic field in a magnetic resonance tomography system include at least one basic electromagnet without an iron core that generates the basic magnetic field, at least three gradient field electromagnets that generate the gradient magnetic field, with the basic field electromagnet situated within the gradient field electromagnets such that during acquisition of magnetic resonance data from a subject, the basic field electromagnet is closer to the subject than the gradient field electromagnets. Because the basic electromagnet is situated within the gradient field electromagnets, an active shielding of the gradient field electromagnets can be foregone, and since the basic field electromagnet is situated near the subject, it can be a water-cooled air coil.
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