Bulletin of the American Physical Society
66th Annual Gaseous Electronics Conference
Volume 58, Number 8
Monday–Friday, September 30–October 4 2013; Princeton, New Jersey
Session ET5: Workshop on the Plasma Data Exchange Project |
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Chair: Leanne Pitchford Bill Graham, CNRS, University of Toulouse; Queens University, Belfast, UK Room: Village Square |
Tuesday, October 1, 2013 1:30PM - 1:40PM |
ET5.00001: Introduction Leanne Pitchford |
Tuesday, October 1, 2013 1:40PM - 2:10PM |
ET5.00002: eMOL Evaluating electron-water scattering data Nigel Mason The eMOL (electron molecule) project has been established to establish the process by which such data will be reviewed, validated and recommended data sets published. In particular eMOL seeks to suggest whether any particular data set be used as a primary or secondary source of data for the wider community. Primary would mean that is judged to the best representation of that particular interaction/cross section and therefore be used as a ``recommended'' value for users. The first target to be reviewed by eMOL was water with 8 members of the eMOL board meeting in Vienna in May 2013. The Board used the most recent review of electron-water scattering (Itikawa and Mason J. Phys. Chem. Ref. Data 34 1-22 (2005)) as its reference point. Over 80 papers (collected and disseminated by eMOL's bibliometrician Dr D Jaksch) that had been published subsequent to this review were reviewed and recommendations made as to whether such data should replace recommendations in the earlier review. The Meeting also identified areas (cross sections) for future research, data inconsistencies and reviewed the allocation of uncertainty estimates for complete datasets (assembled from a combination of both experimental and theoretical data). In this presentation I will therefore both present the findings of this review and discuss this study as an exemplar of the wider eMOL programme which will review some 15 electron-molecule datasets in 2013-15 including many of interest to the GEC (plasma) community. [Preview Abstract] |
Tuesday, October 1, 2013 2:10PM - 2:40PM |
ET5.00003: Electron swarms in water vapour: measurement, transport theory and cross-sections Ron White, K.F. Ness, R.E. Robson, M.J. Brunger The determination of a comprehensive set of electron--water vapour cross-sections is fundamental to understanding electron induced processes arising in applications ranging from plasma discharges to astrophysics, planetary, terrestrial and cometary atmospheres and radiation damage modelling. Formulation of complete sets are generally based on a critical assessment of available experimental ``beam'' studies and theoretical calculations. Issues of completeness and accuracy of cross-section sets still remain and it is here that swarm experiments play a key role. In this presentation we assess the consistency of recent cross-section sets, particularly those including recent measurements for vibrational and electronic excitation. Comparison of calculated transport coefficients using an improved multi-term Boltzmann equation solution with the available experimental swarm measurements provides a discriminating test on consistency and accuracy of the cross-section sets. Issues associated with transport coefficient definition and experimental interpretation will be revisited and distilled. [Preview Abstract] |
Tuesday, October 1, 2013 2:40PM - 3:10PM |
ET5.00004: Open Discussion on data need for modeling plasmas containing water vapor |
Tuesday, October 1, 2013 3:10PM - 3:30PM |
ET5.00005: Previews of posters in this sorting category, limited to one power point slide per poster |
Tuesday, October 1, 2013 3:30PM - 4:00PM |
ET5.00006: General discussion including a status report on the PDEP project and a discussion of where we want to go from here |
Tuesday, October 1, 2013 4:00PM - 4:10PM |
ET5.00007: Closing Remarks Leanne Pitchford |
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