发明名称 |
HIGH RESOLUTION MAGNETORESONANCE SPECTROSCOPIC MAGNET APPARATUS HAVING SUPERCONDUCTING MAGNET COIL SYSTEM AND MAGNETIC FIELD FORMING DEVICE AND METHOD OF DETERMINING MANUFACTURING ALLOWANCE THEREABOUT |
摘要 |
PROBLEM TO BE SOLVED: To enough compensate the influence of the manufacturing allowance on a magnetic field forming in a work volume of a magnetic forming device composed of a magnetic substance having an adequate geographical shape in a high resolution resonance spectroscopic magnetic apparatus. SOLUTION: A superconducting magnet for generating a magnetic field in a direction of the (z) axis in a work volume (AV) disposed with center at z=0 on the (z) axis forms a magnetic coil system (C) in a work volume. Its magnetic field has at least one nonuniformly contributing component Hn .z<n> (n>=2) to the total magnetic field strength on the (z) axis with center at z=0, varying exponentially as z<n> and a magnetic field forming device (P) composed of a magnetic substance at least in cylindrical symmetric shape with respect to the (z) axis has at least one additional coil system (S) which has a radial distance of less than 80 mm from the x axis, compensates the one nonuniformly magnetic field contributing component Hn .z<n> at least 50% in the magnet coil system (C), and acts as a seam device.
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申请公布号 |
JP2002311119(A) |
申请公布日期 |
2002.10.23 |
申请号 |
JP20020024124 |
申请日期 |
2002.01.31 |
申请人 |
BRUKER BIOSPIN AG |
发明人 |
SCHAUWECKER ROBERT;BOVIER PIERRE-ALAIN;AMANN ANDREAS;ECKERT DANIEL M |
分类号 |
G01R33/3815;G01R33/3873;G01R33/3875;G01R33/421;H01F7/20;(IPC1-7):G01R33/381;G01R33/387 |
主分类号 |
G01R33/3815 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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