Plasma and Fusion Research

Volume 18, 1202010 (2023)

Rapid Communications

Initial Experimental Results of Three-Dimensional Plasma Structure Reconstructed from Seven Independent X-Ray Images on RELAX
Shinichiro INAGAKI, Akio SANPEI, Takeru INOUE and Haruhiko HIMURA
Department of Electronics, Kyoto Institute of Technology, Matsugasaki, Sakyo Ward, Kyoto 606-8585, Japan
(Received 25 November 2022 / Accepted 19 January 2023 / Published 17 February 2023)

Abstract

In this study, we demonstrated the principle underlying the three-dimensional (3D) reconstruction of plasma structure by using a soft X-ray camera with multiple pinholes. Time evolutions of seven independent soft X-ray images were captured by the camera. The obtained data were used to reconstruct a 3D soft X-ray emission profile in the reversed-field pinch produced in the RELAX machine, which appeared to be consistent with the forecast in our feasibility study.

Keywords

imaging measurement, reversed-field pinch, soft X-ray, three-dimensional diagnostics

DOI: 10.1585/pfr.18.1202010

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