Abstract
The measurement of round trip group delay vs. frequency for electromagnetic waves reflected at a cutoff layer in the plasma can be used to reconstruct electron density profiles1. In Amplitude Modulation (AM) reflectometry2,3 the group delay is obtained from the phase delay φ of the modulating envelope as τg=φ/Ω, where Ω/2π is the modulating frequency; phase measurement is unambiguous provided that Ωτg<2π
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References
J. L. Doane, E. Mazzucato, and G. L. Schmidt, Plasma density measurements using FM-CW millimeter wave radar techniques, Rev. Sci. Instrum. 52, 12 (1981).
V.A. Vershkov and V.A. Zhuravlev. Plasma diagnostics experiments on the T-10 tokamak by means of a reflected microwave signal, Sov. Phys. Tech. Phys. 32, 523 (1987).
J. Sanchez. B. Branas, T. Estrada, E. de la Luna, and V. Zhuravlev, Amplitude modulation reflectometry for large fusion devices, Rev. Sci. Instrum. 63, 4654 (1992).
P.Buratti. M.Zerbini, Y.Brodsky, N.Kovalev, A.Shtanuk, Amplitude Modulation Reflectometry System for the FTU Tokamak, Rev.Sci.Instrum. 66 (409), 1995.
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© 1996 Plenum Press, New York
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Zerbini, M., Buratti, P., Amadeo, P. (1996). Experimental Results of Amplitude Modulation Reflectometry on High Density Tokamak Plasmas. In: Stott, P.E., Gorini, G., Sindoni, E. (eds) Diagnostics for Experimental Thermonuclear Fusion Reactors. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0369-5_19
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DOI: https://doi.org/10.1007/978-1-4613-0369-5_19
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