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Interaction of a powerful hydrogen plasma flow with a supersonic gas jet and a tungsten target
- Authors: Lidzhigoriaev S.D.1,2, Burmistrov D.A.1,3, Gavrilov V.V.1, Kostyushin V.A.1, Poznyak I.M.1,2, Pushina A.V.1,2, Toporkov D.A.1,2
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Affiliations:
- State Scientific Center of the Russian Federation Troitsk Institute for Innovation and Thermonuclear Research
- National Research University Moscow Institute of Physics and Technology
- National Research University Moscow Power Engineering Institute
- Issue: Vol 50, No 12 (2024)
- Pages: 1527-1537
- Section: PLASMA DIAGNOSTICS
- URL: https://journal-vniispk.ru/0367-2921/article/view/290170
- DOI: https://doi.org/10.31857/S0367292124120106
- EDN: https://elibrary.ru/EEKQWK
- ID: 290170
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Abstract
The results of a study of the interaction of a powerful flow of hydrogen plasma with a supersonic gas jet in front of a tungsten target are presented. Nitrogen or neon injected in front of the target surface provides a reliable method of shielding tungsten from direct exposure to hydrogen plasma. It has been experimentally shown that the resulting plasma of the gas jet is a powerful source of short-wave line radiation. Energy density absorbed by a tungsten target ≈25 J/cm2 is half the energy absorbed by tungsten during pulsed action of a hydrogen plasma flow without a gas jet ≈50 J/cm2. The maximum temperature achieved by the tungsten surface is ≈3700 K with the use of a gas jet and ≈5800 K without a gas jet. The presence of a gas jetscreen in front of the tungsten leads to the localization of evaporated tungsten near the target at distances of up to 1 cm from the surface.
About the authors
S. D. Lidzhigoriaev
State Scientific Center of the Russian Federation Troitsk Institute for Innovation and Thermonuclear Research; National Research University Moscow Institute of Physics and Technology
Author for correspondence.
Email: sandji@triniti.ru
Russian Federation, Troitsk, Moscow, 108840; Moscow, 141701
D. A. Burmistrov
State Scientific Center of the Russian Federation Troitsk Institute for Innovation and Thermonuclear Research; National Research University Moscow Power Engineering Institute
Email: sandji@triniti.ru
Russian Federation, Troitsk, Moscow, 108840; Moscow, 111250
V. V. Gavrilov
State Scientific Center of the Russian Federation Troitsk Institute for Innovation and Thermonuclear Research
Email: vvgavril@triniti.ru
Russian Federation, Troitsk, Moscow, 108840
V. A. Kostyushin
State Scientific Center of the Russian Federation Troitsk Institute for Innovation and Thermonuclear Research
Email: sandji@triniti.ru
Russian Federation, Troitsk, Moscow, 108840
I. M. Poznyak
State Scientific Center of the Russian Federation Troitsk Institute for Innovation and Thermonuclear Research; National Research University Moscow Institute of Physics and Technology
Email: sandji@triniti.ru
Russian Federation, Troitsk, Moscow, 108840; Moscow, 141701
A. V. Pushina
State Scientific Center of the Russian Federation Troitsk Institute for Innovation and Thermonuclear Research; National Research University Moscow Institute of Physics and Technology
Email: sandji@triniti.ru
Russian Federation, Troitsk, Moscow, 108840; Moscow, 141701
D. A. Toporkov
State Scientific Center of the Russian Federation Troitsk Institute for Innovation and Thermonuclear Research; National Research University Moscow Institute of Physics and Technology
Email: toporkov@triniti.ru
Russian Federation, Troitsk, Moscow, 108840; Moscow, 141701
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