Abstract
We have determined the optical absorption depth for Hβ line in clouds of secondary plasma near pellets ablating in high-temperature plasma of devices with magnetic confinement. It is established that, for all values of the electron concentration (1016–3 × 1017 cm−3) and electron temperature (2–5 eV) measured in typical impurity pellet clouds, the absorption is negligibly small. At the same time, it can be significant in clouds of higher density (1017–5 × 1017 cm−3) with a temperature of 1–2 eV, which are typical of cryogenic fuel pellets.
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Original Russian Text © I.A. Sharov, V.Yu. Sergeev, I.V. Miroshnikov, 2014, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2014, Vol. 40, No. 8, pp. 88–94.
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Sharov, I.A., Sergeev, V.Y. & Miroshnikov, I.V. Self-absorption of Hβ line in pellet ablation clouds in devices with magnetic confinement of high-temperature plasma. Tech. Phys. Lett. 40, 361–363 (2014). https://doi.org/10.1134/S1063785014040257
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DOI: https://doi.org/10.1134/S1063785014040257