Tangential soft-x ray imaging for three-dimensional structural studies in a reversed field pinch

Journal Article · Thu Jul 15 00:00:00 EDT 2010 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3455216· OSTI ID:22053783

Onchi, T; Ikezoe, R; Oki, K; Sanpei, A; Himura, H; Masamune, S ^[1]

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1. Department of Electronics, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585 (Japan)

Tangential soft-x ray (SXR) imaging diagnostic has been developed and three-dimensional (3D) structure of the internal magnetic surface has been deduced by comparing the experimental and calculated two-dimensional SXR images in a reversed field pinch. The SXR imaging system, consisting of a MCP, a fluorescent plate, and an intensified charge coupled device camera, has been installed in REversed field pinch of Low-Aspect-ratio eXperiment (RELAX) machine. Major characteristics of an experimental SXR image could be reproduced by numerical calculations of the image using a single island model, suggesting a helical hot core in RELAX. The SXR imaging system could be useful for 3D structural studies when tangential and vertical simultaneous imaging systems would be installed, with appropriate numerical modeling of 3D structure of the magnetic surfaces.

• OSTI ID: 22053783
• Journal Information: Review of Scientific Instruments, Vol. 81, Issue 7; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASPECT RATIO
CAMERAS
CHARGE-COUPLED DEVICES
FLUORESCENCE
IMAGES
MAGNETIC SURFACES
REVERSED-FIELD PINCH DEVICES
REVERSE-FIELD PINCH
SIMULATION
SOFT X RADIATION
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS