Abstract
To increase the sensitivity of the photoionization diagnostics, efficient laser systems for plasma probing are developed based on stable resonator configurations with small diffraction loss. The systems meet the requirements for multipass intracavity probing and make it possible to increase the resonator length to conform to a large size of the tokamak chamber. Demonstration experiments were carried out in the FT-1 tokamak. The results obtained confirm the possibility of reliable measurements of the hydrogen neutral density in the range 108–109 cm−3 in tokamak plasmas.
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References
V. K. Gusev, A. V. Dech, D. V. Kuprienko et al., Pis’ma Zh. Tekh. Fiz. 21, 32 (1995).
V. I. Gladuschak, V. K. Gusev, M. Yu. Kantor et al., Nuclear Fusion 35, 1385 (1995).
H. Kogelnik and T. Li, Appl. Opt. 5, 1550 (1966).
Yu. A. Anan’ev, Laser Resonators and Beam Divergence Problem (Adam Hilder, New York, 1992).
A. L. Mikaélyan, M. L. Ter-Mikaélyan, and Yu. G. Turkov, Solid-State Optical Oscillators (Sov. Radio, Moscow, 1967).
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 70, No. 1, 2000, pp. 27–31.
Original Russian Text Copyright © 2000 by Petrov, Razdobarin, Tolstyakov.
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Petrov, Y.V., Razdobarin, G.T. & Tolstyakov, S.Y. Application of wide-aperture resonators with small diffraction loss to diagnostics of a tokamak plasma by the laser photoionization technique. Tech. Phys. 45, 25–29 (2000). https://doi.org/10.1134/1.1259564
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DOI: https://doi.org/10.1134/1.1259564