抄録
This paper reports on a folding micro coil as a receiver for MRI (Magnetic Resonance Imaging). A folding micro coil was fabricated by aligning uniformly circular plates along the coil axis by using MEMS (Micro Electro Mechanical Systems) technology. Since line width depends only on the direction of coil diameter, the line width doesn't decrease with increasing coil turns. Therefore we can fabricate the micro coil which has compatibility between increasing coil turns and decreasing resistance. The diameter of the coil and the length of the coil were 6 mm and 12 mm. The number of coil turns were 4, 6, and 8. The resistance of turn 4, turn 6, and turn 8 coils were 1.24 Ω, 1.54 Ω, and 1.69 Ω, respectively. Since a folding micro coil has low resistance, we acquired MR images with high SNR.
