The Townsend coefficient of ionization in atmospheric pressure rare gas plasma

G. Zvereva

doi:10.1117/12.2225321

15 December 2015 The Townsend coefficient of ionization in atmospheric pressure rare gas plasma

G. Zvereva

Proceedings Volume 9810, International Conference on Atomic and Molecular Pulsed Lasers XII; 98101N (2015) https://doi.org/10.1117/12.2225321
Event: XII International Conference on Atomic and Molecular Pulsed Lasers, 2015, Tomsk, Russian Federation

Abstract

In the work the influence of the processes characteristic for atmospheric pressure heavy inert gases discharge plasma on the value of the first Townsend ionization coefficient were investigated. Krypton plasma was considered. Calculations have shown that the greatest impact on the value of the first Townsend ionization coefficient has dissociative recombination of molecular ions, followed by descending influence processes occur: stepwise ionization, the electron-electron collisions and superelastic ones. The effect of these processes begins to appear at concentrations of electrons and excited particles higher than 10¹² cm^-3. At times shorter than the time of molecular ions formation, when dissociative recombination is absent, should expect a significant increase of the ionization coefficient.

Citation Download Citation

G. Zvereva "The Townsend coefficient of ionization in atmospheric pressure rare gas plasma ", Proc. SPIE 9810, International Conference on Atomic and Molecular Pulsed Lasers XII, 98101N (15 December 2015); https://doi.org/10.1117/12.2225321

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available