Generation of K-Shell Radiation of Noble Gases in the Microsecond Implosion Regime

Autor: Vladimir Kokshenev, A. V. Shishlov, N. E. Kurmaev, N. A. Labetskaya, R. K. Cherdizov, F. I. Fursov
Rok vydání: 2019
Předmět:
Zdroj: Russian Physics Journal. 62:1243-1252
ISSN: 1573-9228
1064-8887
Popis: Studies of K-shell plasma radiation sources were performed on the GIT-12 generator (4.7 MA, 1.7 μs). In the experiments, a new type of load configuration was used to form the Z-pinch plasma – a gas puff with an outer plasma shell. Noble gases neon and argon were used as working gases. The gas puff consisted of two cascades: a hollow cylindrical shell outside and a solid jet inside. The outer plasma shell was created with the help of plasma guns located on a diameter of 350 mm. A distinctive feature of these studies is that the experiments with the plasma radiation source were carried out in the microsecond implosion regime usually leading to a significant decrease in the efficiency of generation of K-shell x-rays. The use of the Z-pinch load of a new type significantly improved the efficiency of the microsecond plasma radiation source. As a result of optimization of the initial gas-puff parameters, a neon K-shell radiation yield of 14.7 kJ/cm at a peak implosion current of 3.5 MA was achieved. In experiments with argon gas puffs, the radiation yield reached 1.9 kJ/cm at a peak implosion current of 3.1 MA.
Databáze: OpenAIRE
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