PANEL-TYPE COIL, UNIFORM MAGNETIC FIELD GENERATOR, GRADIENT MAGNETIC FIELD GENERATOR AND MAGNETIC FIELD CANCELING DEVICE

摘要

PPROBLEM TO BE SOLVED: To secure the distribution of a uniform magnetic field and a linear gradient magnetic field in a wide range without bothering entrance into and exit out of a measuring space. PSOLUTION: The panel-type coil is constituted by connecting in series a plurality of coils constituted by winding a wire in concentric circular shape or concentric angular shape on the same plane in respective normal/reverse directions, then, two sheets of panel-type coils are arranged so as to be opposed respectively, and a power supply is connected to respective panel-type coils. These might be arranged by four sheets of panel-type coils (two axes), or six sheets of panel-type coils (three axes). Then, the power supply is operated to produce the uniform magnetic field and the linear gradient magnetic field, which have reversed phase with respect to an environmental magnetic field having the gradient magnetic field and the uniform (equal) magnetic field. PCOPYRIGHT: (C)2006,JPO&NCIPI