Angular anisotropy of hard x rays produced by laboratory atmospheric discharges.

Autor: Parkevich, E. V., Shpakov, K. V., Baidin, I. S., Rodionov, A. A., Khirianova, A. I., Bolotov, Ya. K., Ryabov, V. A.
Předmět:
Zdroj: Journal of Applied Physics; 10/28/2024, Vol. 136 Issue 16, p1-14, 14p
Abstrakt: The temporal, spectral, and angular characteristics of the x-ray emissions (photons with energies within 5–1000 keV) are exhaustively investigated during the discharge formation at voltages up to 1 MV in approximately 55 cm air gaps. The temporal correlations between the x-ray emissions and discharge voltage and current waveforms are established. The evolution of the discharge plasma structures developing in the time periods of the x-ray generation is traced with a nanosecond resolution. Based on statistical data, theoretical analysis, and estimates the regularities in the x-ray emission characteristics are revealed together with their relationship with the ionization processes occurring in the gas-discharge medium. On the basis of the obtained experimental data, the probable x-ray generation mechanisms are discussed. The findings can provide a deeper understanding of the physics behind the sources of hard x rays arising during the development of laboratory and atmospheric discharges. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index