Measurement of sodium-argon cluster ion recombination by coherent microwave scattering
- Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville Tennessee 37996 (United States)
- Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544 (United States)
- Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, New Mexico 87117 (United States)
This present work demonstrates a non-intrusive measurement of the rate constant for sodium-argon cluster ions (Na{sup +}{center_dot}Ar) recombining with electrons. The measurements begin with resonance enhanced multi-photon ionization of the Na followed by coherent microwave scattering (radar) to monitor the plasma density. The Na{sup +}{center_dot}Ar adduct was formed in a three-body reaction. The plasma decay due to recombination reactions was monitored as a function of time and modeled to determine the rate constant. At 473 K, the rate constant is 1.8{sub -0.5}{sup +0.7}x10{sup -6}cm{sup 3}/s in an argon buffer at 100 Torr and initial Na number density of 5.5 x 10{sup 10} cm{sup -3}.
- OSTI ID:
- 22025472
- Journal Information:
- Applied Physics Letters, Vol. 100, Issue 11; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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