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Absolute Electron Scattering Cross Sections for the CF2 Radical

Maddern, Todd M. and Hargreaves, Leigh R. and Francis-Staite, Jessica R. and Brunger, Michael J. and Buckman, Stephen J. and Winstead, Carl and McKoy, Vincent (2008) Absolute Electron Scattering Cross Sections for the CF2 Radical. Physical Review Letters, 100 (6). Art. No. 063202. ISSN 0031-9007. doi:10.1103/PhysRevLett.100.063202.

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Using a crossed electron-molecular beam experiment, featuring a skimmed nozzle beam with pyrolytic radical production, absolute elastic cross sections for electron scattering from the CF2 molecule have been measured. A new technique for placing measured cross sections on an absolute scale is used for molecular beams produced as skimmed supersonic jets. Absolute differential cross sections for CF2 are reported for incident electron energies of 30–50 eV and over an angular range of 20–135 deg. Integral cross sections are subsequently derived from those data. The present data are compared to new theoretical predictions for the differential and integral scattering cross sections, as calculated with the Schwinger multichannel variational method using the static-exchange and static-exchange plus polarization approximations.

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Hargreaves, Leigh R.0000-0001-5023-6300
Additional Information:©2008 The American Physical Society. (Received 20 November 2007; published 14 February 2008) We thank the Australian Research Council for financial support through their Centre of Excellence program, G. Hewitt, B. Gilbert, R. Northeast, and Steve Battisson for technical assistance, and Professor H. Hotop and Professor P. Chen for their informative discussions. C.W. and V. M. acknowledge support by the Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy, and use of the resources of the Jet Propulsion Laboratory’s Supercomputing and Visualization Facility.
Issue or Number:6
Record Number:CaltechAUTHORS:MADprl08
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9613
Deposited By: Archive Administrator
Deposited On:18 Feb 2008
Last Modified:08 Nov 2021 21:00

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