Microplasma analytical sensor for gas mixtures diagnostics
- 1 — Ph.D., Dr.Sci. professor Saint Petersburg State Mining University
- 2 — post-graduate student Saint Petersburg State Mining University
Abstract
Theoretical consideration of collision electron spectroscopy (CES) for gaseous media analysis and experimental results on CES detector are presented. It is demonstrated that a diffusion path confinement for characteristic electrons provides a possibility to measure electrons energy distribution function and to find characteristic spectra of species at high (up to atmospheric) gas pressure. Simple micro-plasma CES detector of two plane parallel electrode configuration with current-voltage measurement in afterglow of helium glow discharge may be designed to operate at a high gas pressure up to atmospheric one. Experimental electron energy spectra of pair He metastables collisions in dependence of interelectrode gap are discussed.
References
- Russian patent application N 2009143641. Method for gas mixture content determination and ionization detector for admixtures analysis / A.A.Kudryavtsev, A.B.Tsyganov, A.S.Chirtsov. Issued 26.11.2009.
- Patent of Russian Federation No 2217739. Gas analysis method and ionisation detector for carrying out said method / A.A.Kudryavtsev, A.B.Tsyganov. Publ. 27.11.2003.
- Blagoev A.B., Kagan Yu.M., Kolokolov N.B., Lyagushchenko R.I. Electron energy distribution in the afterflow II // Sov. Phys. Tech. Phys. 1974. Vol.19.
- Demidov V.I., Kolokolov N.B. Study of elastic electron collisions by plasma electron spectroscopy // Sov. Phys. 1987. Vol.30.
- Demidov V.I., Adams S.F., Blessington J. et al. Short DC discharge withwall probe as a gas analytical detector // Contrib. Plasma Phys. 2010. Vol.50. N 9.
- Patent US 7,309,992. Gas analysis method and ionisation detector for carrying out said method // A.A.Kudryavtsev, A.B.Tsyganov. Publ. 18.12.2007.
- Raizer Yu.P. Gas discharge physics. Springer, 1991.
- Sheverev V.A., Khromov N.A., Kojiro D.R. Penning ionization electron spectroscopy in glow discharge: Another dimension for gas chromatography detectors // Anal. Chem. 2002. Vol.74.
- Hufner S. Photoelectron spectroscopy. principles and applications. Springer, 2003.