A synthetic diagnostic for the evaluation of new microwave imaging reflectometry diagnostics for DIII-D and KSTAR

Journal Article · Fri Oct 15 04:00:00 EDT 2010 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3464461· OSTI ID:22055814

Lei, L; Tobias, B; Domier, C W; Luhmann, Jr, N C ^[1]; Kramer, G J; Valeo, E J ^[2]; Lee, W; Yun, G S; Park, H K ^[3]

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1. University of California at Davis, Davis, California 95616 (United States)
2. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
3. Pohang University of Science and Technology, Pohang, Gyeongbuk 790-784 (Korea, Republic of)

The first microwave imaging reflectometry (MIR) system for characterization of fluctuating plasma density has been implemented for the TEXTOR tokamak [H. Park et al., Rev. Sci. Instrum. 75, 3787 (2004)]; an improved MIR system will be installed on DIII-D and KSTAR. The central issue remains in preserving phase information by addressing antenna coupling between the reflection layer and the detector array in the presence of plasma turbulence. A synthetic diagnostic making use of coupled full-wave diffractive codes has been developed in geometries and applied to a variety of optical arrangements. The effectiveness of each scheme is quantitatively compared with respect to the fluctuation levels accessible in the simulation.

• OSTI ID: 22055814
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 81; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANTENNAS
DOUBLET-3 DEVICE
FLUCTUATIONS
MICROWAVE RADIATION
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
REFLECTION
TEXTOR TOKAMAK
TURBULENCE