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- W2977777645 abstract "(cathode) was a truncated cone with an axial hole (diverter), and the outer electrode (anode) was a cylinder formed by eight copper rods symmetrically disposed around a circle. As distinguished from [9 1, the cathode was made of DI6T fusible material. The use of a cathode made of fusible material made it possible to investigate some peculiarities of the formation and the dynamics of the plasma in the MPC canal. Spectrooptical methods were used to investigate the dynamics of radiation-producing plasma in the electrode gap, in the vicinity of the electrodes, and in the region of compression. All the studies were performed in the residual-gas regime with an initial hydrogen pressure P0 = 1330 Pa. The energy store was a capacitor bank of 800 !~F. The initial store voltage U0 ranged from 2 to 5 kV. The peak discharge current, which consisted of two half-periods each with a duration of 70 ~sec, reached 100 kA. The current was built up in steps. Spectroscopic studies were conducted with an ISP-30 quartz spectrograph. Individual portions of plasma formations were projected onto the slit of this spectrograph with the help of a quartz condenser with a focal length F = 75 mm. Qualitative analysis of the emission spectra showed that in these spectra there exist intense spectral lines of the Balmer series of hydrogen atoms, aluminum atoms and ions, and carbon ions as well as resonance lines of atoms of elements of the anode material. The highest intensity of the spectral lines is observed in the region of compression and the near-cathode zone. Note that in the spectra the regions in the neighbourhood of the line H/~ 486.1 nm and the lines AIIII 447.9, 451.2, 452.9 nm, near which there are no lines of other elements, are clearly defined (Fig. 1). This feature of the emission spectra makes it possible to use the plasma radiation for photoscans at wavelengths corresponding to the excited hydrogen atom and doubly-ionized aluminum atom." @default.
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- W2977777645 date "1990-01-01" @default.
- W2977777645 modified "2023-09-27" @default.
- W2977777645 title "CONDITIONS OF INCREASED CATHODE EROSIN" @default.
- W2977777645 hasPublicationYear "1990" @default.
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