TITLE

Simultaneous plasma and electric field diagnostics of microdischarge from hydrogen Balmer line shape

AUTHOR(S)
Spasojevic, Dj.; Cvejic, M.; Sˇisˇovic, N. M.; Konjevic, N.
PUB. DATE
June 2010
SOURCE
Applied Physics Letters;6/14/2010, Vol. 96 Issue 24, p241501
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Hydrogen Balmer beta line shape from a microhollow gas discharge in argon with traces of hydrogen is used for simultaneous diagnostics of plasma and cathode sheath parameters. Simple model of relevant processes responsible for line broadening is developed and results favorably compared with experiment at 500 mbar with the electron density 3.8×1020 m-3 and electric field strength of 127 kV/cm in the cathode sheath region.
ACCESSION #
51526982

 

Related Articles

  • Excessive Doppler broadening of the Hα line in a hollow cathode glow discharge. Šišović, N. M.; Majstorović, G. Lj.; Konjević, N. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Jan2007, Vol. 41 Issue 1, p143 

    A comparative study of the radial intensity distribution of the excessively Doppler broadened hydrogen Hα line in a hollow cathode (HC) glow discharge operated in hydrogen and argon-hydrogen gas mixtures with stainless steel (SS) and titanium (Ti) cathode is reported. The main interest of...

  • FFM Applications to Dense and Warm Hydrogen Plasma Study. Calisti, A.; Bureyeva, L. A.; Lisitsa, V. S.; Shuvaev, D.; Talin, B. // AIP Conference Proceedings;2006, Vol. 874 Issue 1, p58 

    A study of hydrogen lines emitted in dense and low temperature plasmas is presented. A transition from impact to quasi-static broadening for electrons is analyzed with the help of the Frequency Fluctuation Model (FFM). Electron broadening of Balmer series lines is studied for different densities...

  • Theoretical calculation and experimental observation of stark profiles of Argon spectral lines for the measurements of electric fields in a discharge plasma. Gavrilenko, V. P.; Kim, H. J.; Ikutake, T.; Kim, J. B.; Bowden, M. D.; Muraoka, K. // AIP Conference Proceedings;2001, Vol. 559 Issue 1, p196 

    Stark profiles of spectral lines corresponding to the transitions between Rydberg levels and low lying levels of atoms can serve as sensitive detectors of electric fields in a plasma. We report the development of a method for measurements of electric fields in glow discharge plasmas, based on...

  • Anomalous Broadening of Balmer Hα Line in Aluminum and Copper Hollow Cathode Glow Discharges. Sˇisˇovic, N. M.; Majstorovic, G. Lj.; Konjevic, N. // AIP Conference Proceedings;10/22/2008, Vol. 1058 Issue 1, p143 

    The presented results are concerned with the shape of Balmer alpha line emitted from a low pressure DC glow discharge with aluminum (Al) and copper (Cu) hollow cathode (HC) in pure H2 and Ar-H2 gas mixture. The analysis indicates that the line profile represents a convolution of Gaussian...

  • Influence of thin porous Al2O3 layer on aluminum cathode to the Hα line shape in glow discharge. Steflekova, V.; Sˇisˇovic, N. M.; Konjevic, N. // Journal of Applied Physics;Jun2009, Vol. 105 Issue 11, p116106 

    The results of the Balmer alfa line shape study in a plane cathode-hollow anode Grimm discharge with aluminum (Al) cathode covered with thin layer of porous Al2O3 are presented. The comparison with same line profile recorded with pure Al cathode shows lack of excessive Doppler broadened line...

  • Time Ordering Effects on Hydrogen Zeeman-Stark Line Profiles in Low-Density Magnetized Plasmas. Rosato, J.; Boland, D.; Difallah, M.; Marandet, Y.; Stamm, R. // International Journal of Spectroscopy;2010, p1 

    Stark broadening of hydrogen lines is investigated in low-density magnetized plasmas, at typical conditions of magnetic fusion experiments. The role of time ordering is assessed numerically, by using a simulation code accounting for the evolution of the microscopic electric field generated by...

  • Stark splitting of the Balmer-α line in the cathode fall of a DC gas discharge. Rieper, T.; Neumann, J.; Helbig, V. // AIP Conference Proceedings;2001, Vol. 559 Issue 1, p82 

    The aim of the present paper is to show that Doppler-broadened spectra of the first Balmer line of Hydrogen can be used to determine the electric field strength in the cathode sheath of a low pressure glow discharge with high accuracy. Using a home-made Littrow-type diode laser spectrometer and...

  • Hydrogen Stark Broadened Brackett lines. Stehlé, C.; Fouquet, S. // International Journal of Spectroscopy;2010, p1 

    Stark-broadened lines of the hydrogen Brackett series are computed for the conditions of stellar atmospheres and circumstellar envelopes. The computation is performed within the Model Microfield Method, which includes the ion dynamic effects and makes the bridge between the impact limit at low...

  • Excessive Balmer line broadening in microwave-induced discharges. Jovičević, S.; Ivković, M.; Konjević, N.; Popović, S.; Vušković, L. // Journal of Applied Physics;1/1/2004, Vol. 95 Issue 1, p24 

    Results of a hydrogen Balmer line-shape study on microwave-induced plasma discharges operated with pure hydrogen and with argon–hydrogen or helium–hydrogen mixtures are reported. Plasma is generated in a rectangular or coaxial microwave cavity in two separate experiments. In both...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics