skip to main content

Title: Observations of soft X-ray emission and plasma dynamics of a compact capillary discharge operated in xenon

We report observations of a low stored energy, low inductance compact capillary discharge operated in xenon. Even though the stored electrical energy is less than 1 J, significant output in the optical windows at 110 and 135 Å is measured. The soft X-ray emission is time-resolved and the conversion energy of the source is obtained. A lower bound to the conversion efficiency at 110 Å ± 2% and 135 Å ± 1% of 3.6% and 1.6% is obtained, respectively. The use of moiré-schlieren optical diagnostic allows the evolution of the line electron density. In particular, we observe a significant degree of compression in a tight on axis pinch as well as radial compression waves. The temporal evolution of the X-ray emission, which occurs during the current reversal and later, is discussed in relation to work in argon discharges and in relation to model calculations.
Authors:
; ; ;  [1]
  1. Facultad de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago (Chile)
Publication Date:
OSTI Identifier:
22220631
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 9; 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; ARGON; COMPRESSION; CONVERSION; ELECTRIC DISCHARGES; ELECTRON DENSITY; EMISSION; EVOLUTION; INDUCTANCE; PINCH EFFECT; PLASMA DENSITY; PLASMA DIAGNOSTICS; PLASMA WAVES; SOFT X RADIATION; STORED ENERGY; TIME RESOLUTION; XENON