ACTIVE ACOUSTIC SCREENING - DESIGN PRINCIPLES FOR QUIET GRADIENT COILS IN MRI

被引：36
作者：
MANSFIELD, P
GLOVER, P
BOWTELL, R
机构：
[1] Magnetic Resonance Centre, Department of Physics, University of Nottingham, Nottingham, University Park
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 1994年 / 5卷 / 08期
关键词：
Acoustic noise - Acoustic wave absorption - Attenuation - Electric conductors - Equations of motion - Interference suppression - Magnetic fields - Magnetic resonance imaging - Medical imaging - Nuclear magnetic resonance - Oscillators (electronic) - Switching;
D O I：
10.1088/0957-0233/5/8/026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new technique for quiet gradient coil design in magnetic resonance imaging is proposed. Preliminary results on a test coil show acoustic noise attenuation behaviour consistent with theory. Active acoustic screening will significantly reduce the dangers to patients of high-level exposure to noise in medical resonance imaging scanners.
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页码：1021 / 1025
页数：5
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