State-selective charge transfer cross sections for light ion impact of atomic hydrogen

Light element atom, molecule and radical behaviour in the divertor and edge plasma regions

Schultz, D.R.^1 ; Stancil, P.C.^2 ; Havener, C.C.^3

Department of Physics, University of North Texas, Denton

TX, United States^1

Department of Physics and Astronomy, University of Georgia, Athens

GA, United States^2

Physics Division, Oak Ridge National Laboratory, Oak Ridge

TN, United States^3

关键词: Charge transfer cross sections;    Classical trajectory monte carlo methods;    Detection of photons;    Fusion plasma diagnostics;    Impurity concentration;    Multiply charged ions;    Plasma properties;    Plasma temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/576/1/012009/pdf
DOI  :  10.1088/1742-6596/576/1/012009

来源: IOP

【 摘 要 】

Owing to the utility of diagnosing plasma properties such as impurity concentration and spatial distribution, and plasma temperature and rotation, by detection of photon emission following capture of electrons from atomic hydrogen to excited states of multiply charged ions, new calculations of state-selective charge transfer involving light ions have been carried out using the atomic orbital close-coupling and the classical trajectory Monte Carlo methods. By comparing these with results of other approaches applicable in a lower impact energy regime, and by benchmarking them using key experimental data, knowledge of the cross sections can be made available across the range parameters needed by fusion plasma diagnostics.