Measuring of high current channel parameters in high pressure gas by combined using of magnetic probe and high speed streak photography

Comparison of discharge channel temperature in gaseous hydrogen of high density with current amplitude of ~ 1 MA at initial gas pressure of 5–7 MPa, determined by two methods, was done under stage of its maximal contraction. In the first case determination of the temperature value of 72–73 eV was made by intensity of soft x-ray radiation from the channel for experiments with current amplitude of 1.1–1.5 MA. The estimation of the temperature on the basis of the data received by magnetic probe method and specified electric characteristics of the channel was of ≈ 140 eV for experiment with initial gas pressure of 5 MPa at current amplitude of 0.93 MA. The temperature determination by the last procedure has small accuracy caused by the limitation of the magnetic probe technique in determination of the channel contraction ratio and some assumptions for near-electrode voltage drops calculations by this way. Apparently, the channel temperature in stage of maximal contraction is of ~ 100 eV.

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Measurements of electric characteristics in high-current high-pressure discharge with current amplitude of 590–1200 kA by magnetic probe

Bogomaz

Pinchuk

Budin

et al. 2018

J. Phys.: Conf. Ser.

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Measuring of high current channel parameters in high pressure gas by combined using of magnetic probe and high speed streak photography

Cited by 3 publications

References 9 publications

Parameters of high-pressure megaampere discharge channel during its contraction

Parameters of high-pressure megaampere discharge channel during its contraction

Comparison of megaampere channel temperature value measured by different methods at its maximal contraction in high density hydrogen

Measurements of electric characteristics in high-current high-pressure discharge with current amplitude of 590–1200 kA by magnetic probe

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