Abstract
The current paper presents the results of experimental researches to determine the mode features of plasma-beam discharge (PBD) generation by an electron beam injected by a low-vacuum gasdischarge electron gun (LGEG) with the cold cathode and hollow anode on the basis of the high-voltage glow discharge and in the range of helium pressure of P ? 10 ÷ 130 Pa. The PBD boundaries and their dependences on parameters of an electron beam are found. The influence of PBD on parameters of low-vacuum gas-discharge electron gun is revealed. It causes an avalanche increase of electron beam current and burning of plasma-beam discharge in the whole space of the vacuum chamber volume and generation of electromagnetic radiation is revealed. Achieved results will be used for implementation of various vacuum technologies in the medium of reaction gas and generated electromagnetic radiation.
Highlights
IntroductionPerspectives of application of plasma-beam discharge (PBD) for creation of new electron beam and plasmachemical technologies is determined by high efficiency of beam electrons kinetic energy transformation into the HF (high-frequency) fields and plasma particles energy [12, 5, 1]
Perspectives of application of plasma-beam discharge (PBD) for creation of new electron beam and plasmachemical technologies is determined by high efficiency of beam electrons kinetic energy transformation into the HF fields and plasma particles energy [12, 5, 1]
The present work studies the features of PBD formed by the electron beam which is injected with the low-vacuum gas discharge electron gun in the medium of low pressure neutral gas (P ≈ 10 ÷ 133 Pa)
Summary
Perspectives of application of plasma-beam discharge (PBD) for creation of new electron beam and plasmachemical technologies is determined by high efficiency of beam electrons kinetic energy transformation into the HF (high-frequency) fields and plasma particles energy [12, 5, 1]. Having been investigated out of the magnetic field and within the neutral gas pressure range of ∼ 0.05÷10 Pa by well known experimental works [7, 3, 6], PBD attracts practical, scientific and technical interest in the field of low pressure For work in this range, low-vacuum gas-discharge electron guns (LGEG) with the hollow anode on the basis of the high-voltage glow discharge (HVGD) applied to implement various electron beam technologies [10, 8, 11] is created. The present work studies the features of PBD formed by the electron beam which is injected with the low-vacuum gas discharge electron gun in the medium of low pressure neutral gas (P ≈ 10 ÷ 133 Pa)
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