Measurement of electron loss rates in high-pressure mercury

The rates of electron decay in high-pressure mercury/helium discharges have been measured using a novel two-photon ionization technique. The rate coefficient of electron loss in this system was found to be well characterized by a two-body rate coefficient of kd=1.05(±0.25)×10−8 cm3 sec−1, assuming d...

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Bibliographic Details
Published in:Journal of applied physics 1984-04, Vol.55 (7), p.2721-2725, Article 2721
Main Authors: MOODY, S. E, CENTER, R. E
Format: Article
Language:English
Subjects:
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma properties
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Summary:The rates of electron decay in high-pressure mercury/helium discharges have been measured using a novel two-photon ionization technique. The rate coefficient of electron loss in this system was found to be well characterized by a two-body rate coefficient of kd=1.05(±0.25)×10−8 cm3 sec−1, assuming dissociative electron-ion recombination. The electron temperature during these measurements is calculated to be 0.4(±0.1) eV. We also report a free-bound optical absorption coefficient at 222 nm of σ̂A=(2.0±0.5)×10−39 cm5.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.333269