Oxygen assisted iodine atoms production in an RF discharge

Pavel A. Mikheyev; Andrey V. Demyanov; Nikolay I. Ufimtsev; Igor V. Kochetov; Valeriy N. Azyazov; Anatoly P. Napartovich; Michael C. Heaven

doi:10.1117/12.2218350

22 April 2016 Oxygen assisted iodine atoms production in an RF discharge

Pavel A. Mikheyev, Andrey V. Demyanov, Nikolay I. Ufimtsev, Igor V. Kochetov, Valeriy N. Azyazov, Anatoly P. Napartovich, Michael C. Heaven

Author Affiliations +

Proceedings Volume 9729, High Energy/Average Power Lasers and Intense Beam Applications IX; 97290H (2016) https://doi.org/10.1117/12.2218350
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

Experiments and modeling of CH₃I dissociation in the plasma generated by a 40 MHz RF discharge were performed. A discharge chamber of an original design, consisting of quartz tubes between two planar electrodes, permitted the production of iodine atoms with number densities up to 2×10¹⁶ cm^-3. In this discharge chamber, contamination of the walls of the tubes did not hinder discharge stability, providing a good iodine production rate. Addition of oxygen into Ar:CH₃I mixture resulted in a substantial increase in iodine extraction efficiency. When the discharge power reached 200 W, complete CH₃I dissociation in a Ar:CH₃I:O₂ mixture was observed. The fraction of discharge power spent on iodine atom production at a 0.17 mmol/s CH₃I flow rate was 16%.

Citation Download Citation

Pavel A. Mikheyev, Andrey V. Demyanov, Nikolay I. Ufimtsev, Igor V. Kochetov, Valeriy N. Azyazov, Anatoly P. Napartovich, and Michael C. Heaven "Oxygen assisted iodine atoms production in an RF discharge", Proc. SPIE 9729, High Energy/Average Power Lasers and Intense Beam Applications IX, 97290H (22 April 2016); https://doi.org/10.1117/12.2218350

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