skip to main content

SciTech ConnectSciTech Connect

Title: Features of plasma glow in low pressure terahertz gas discharge

Investigations of the low pressure (1–100 Torr) gas discharge in the powerful (1 kW) quasi-optical terahertz (0.55 THz) wave beams were made. An intense afterglow was observed after the end of gyrotron terahertz radiation pulse. Afterglow duration significantly exceeded radiation pulse length (8 μs). This phenomenon could be explained by the strong dependence of the collisional-radiative recombination rate (that is supposed to be the most likely mechanism of electron losses from the low pressure terahertz gas discharge) on electron temperature.
Authors:
; ; ; ; ;  [1] ; ; ; ;  [1] ;  [2]
  1. Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603950 (Russian Federation)
  2. (UNN), 23 Gagarina st., 603950 Nizhny Novgorod (Russian Federation)
Publication Date:
OSTI Identifier:
22218389
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 12; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AFTERGLOW; ELECTRON LOSS; ELECTRON TEMPERATURE; ION TEMPERATURE; MICROWAVE AMPLIFIERS; PLASMA; PLASMA DIAGNOSTICS; PLASMA PRESSURE; RECOMBINATION; THZ RANGE