Development of a quadrupole magnet for a mechanical-part-free rotational magnetic field

Abstract

If the properties or morphologies of a material are optimized, magnetic orientation occurs even at the electromagnet level. To apply a rotational magnetic field, we used finite-integration technique to design a quadrupole electromagnet based on estimated magnetic field-strength distributions and magnetic flux vectors. The generation of a seamless 0.33 T rotating magnetic field without moving parts is demonstrated. It will be possible to adopt it for targets, such as material preparations or body parts, that cannot be examined with the conventional turntable method.