Active-passive gradient shielding for MRI acoustic noise reduction
نویسندگان
چکیده
منابع مشابه
Active-passive gradient shielding for MRI acoustic noise reduction.
An important source of MRI acoustic noise-magnet cryostat warm-bore vibrations caused by eddy-current-induced forces-can be mitigated by a passive metal shield mounted on the outside of a vibration-isolated, vacuum-enclosed shielded gradient set. Finite-element (FE) calculations for a z-gradient indicate that a 2-mm-thick Cu layer wrapped on the gradient assembly can decrease mechanical power d...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2005
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.20472