First Experimental Monitoring of the Three-Dimensional Structure of Toroidal Plasmas Using Multiple Soft X-Ray Imaging Techniques

In this study, a previously proposed three-dimensional (3D) tomography method using a multiple-pinhole camera is applied experimentally to detect 3D structures in reversed-field pinch plasmas. The 3D structure of the toroidal plasma was successfully reconstructed and found to be consistent with magnetic field measurements at the plasma’s edge. The results also indicate that toroidal mode number estimation may be possible using the images from the multiple-pinhole camera.