MRI Double pancake coil for high-temperature superconducting magnet and high-temperature superconducting magnet for MRI using same

摘要

The present invention provides an upper fan coil and a lower fan coil wound in a direction perpendicular to a central axis; As a winding connecting the innermost part of the center of the upper fan coil and the lower fan coil, a double for high-temperature superconducting magnet formed by stacking unit double pancake coils formed of an oblique winding part wound in a diagonal direction on a line perpendicular to the central axis. In the pancake coil, the unit double pancake coil is such that the diagonal winding portion has a winding length 1/2 times the innermost circumference of the upper pan coil or the lower pan coil and connects the upper pan coil and the lower pan coil. a first unit double pancake coil wound and having a first diagonal winding portion in which the diagonal winding portion is disposed in one direction; a second unit double pancake coil having a second diagonal winding portion disposed to face the first diagonal winding portion; For a high-temperature superconducting magnet, characterized in that it is formed by alternately stacking the first unit double pancake coil and the second unit double pancake coil so that the first diagonal winding part and the second diagonal winding part are viewed as a single circle The technical gist is to form a double pancake coil. Accordingly, it is possible to obtain an effect that the magnetic field of the superconducting magnet becomes uniform by arranging the double pancake coils in an alternating symmetrical structure so that the diagonal winding portions face each other.