Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pobeo..84..369e&link_type=abstract
Publications of the Astronomical Observatory of Belgrade, vol. 84, pp. 369-373
Astronomy and Astrophysics
Astronomy
2
Scientific paper
At the application of pulsed glow discharge (PGD) a transient power of several kW can be reached. This leads to a significant increase of the excitation and ionization efficiency of the sputtered sample atoms. Moreover, with pulsed mode temporally resolved optical emission spectrometry (OES) and mass spectrometry (MS) deliver additional information about the chemical bonds (Harrison 1998, Bengtson et al. 2000, Hang et al. 1996, Klingler et al. 1990, Lewis et al. 2001, Jackson and King 2003).
However, the practical application of pulsed glow discharge (PGD) requires an understanding of the processes taking place in the pulsed system. There are some publications, where attention was paid on the voltage current characteristics and the current signal shape of PGD (King and Pan 1993, Lewis et al. 2003). Nevertheless more attention should be paid on the electrical properties of the PGD. In this work the shapes of current, voltage and emission intensity signals, obtained with two different pulse generators are compared.
For better understanding of processes, taking place in the discharge the knowledge of the gas temperature is very important. Several authors have mentioned that heating of the cathode leads to changes of the voltage current curve, mainly a decrease of the current at the same voltage. This can be explained by a lower gas density at the same pressure but at higher temperatures (Chenlong et al. 1999, Tian and Chu 2001, Kasik et al. 2002). This phenomenon gives an approach to estimate the gas temperature of the plasma.
Eckert Jürgen
Efimova V. V.
Hoffmann Viktor
Voronov M. V.
No associations
LandOfFree
Electrical properties of pulsed glow discharge Two new aspects does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Electrical properties of pulsed glow discharge Two new aspects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical properties of pulsed glow discharge Two new aspects will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-788178