| Original Articles |
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Shock Tube Studies on Recombination Kinetics of Sodium Ion with Electron |
| WANG Su;CUI Ji-Ping;HE Yu-Zhong;FAN Bing-Cheng;WANG Jing |
| Laboratory of High Temperature Gas Dynamics, Institute of
Mechanics, Chinese Academy of Sciences, Beijing 100080
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| Cite this article: |
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WANG Su, CUI Ji-Ping, HE Yu-Zhong et al 2001 Chin. Phys. Lett. 18 289-291 |
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Abstract The ionization kinetics of sodium diluted in argon is studied in a shock tube, in which the test gas mixture is ionized by a reflected shock wave and subsequently quenched by a strong rarefaction wave. A Langmuir electrostatic probe is used to monitor the variation of the ion number density at the reflection shock wave region. The working state of the probe is in the near free fall region and a correction for reduction of the probe current due to elastic scattering in the probe sheath is introduced. At the temperature range of 800 to 2600 K and in the ambience of argon gas, the three-body recombination rate coefficient of the sodium ion with electron is determined: 3.43 x 10-14T-3.77cm6.s-1.
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| Keywords:
82.20.Pm
34.50.Fa
07.35.+k
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Published: 01 February 2001
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| PACS: |
82.20.Pm
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(Rate constants, reaction cross sections, and activation energies)
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34.50.Fa
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(Electronic excitation and ionization of atoms (including beam-foil excitation and ionization))
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07.35.+k
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(High-pressure apparatus; shock tubes; diamond anvil cells)
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