@article{oai:muroran-it.repo.nii.ac.jp:02000221,
 author = {Kawaguchi Satoru and 川口　悟 and Takahashi Kazuhiro and 髙橋　一弘 and Satoh Kohki and 佐藤　孝紀},
 issue = {24},
 journal = {Journal of Physics D: Applied Physics},
 month = {Apr},
 note = {In this study, we develop a novel method for determining electron
transport coefficients from electron swarm maps measured by a scanning drift-tube
experiment. In our method, two types of electron continuity equations that describe
either the spatial or the temporal evolution of an electron swarm are discovered in
the electron swarm map. The electron transport coefficients can be determined
from the coefficients in the discovered equations. Therefore, we can determine the
Townsend ionization coefficient, ionization rate coefficient, center-of-mass drift
velocity, mean arrival-time drift velocity, longitudinal diffusion coefficient, and
longitudinal third-order transport coefficient. These transport coefficients in argon
are determined over a wide range of reduced electric fields, E/N, from 29.7 to
1351.6 Td (1 Td = 10-21 Vm2) using our method. We establish that the consideration
of high-order transport coefficients, which have been systematically ignored so far,
is important for the proper determination of low-order transport coefficients,
specifically the electron drift velocity and longitudinal diffusion coefficient, in the
presence of ionization growth.},
 title = {Data-driven discovery of electron continuity equations in electron swarm map for determining electron transport coefficients in argon},
 volume = {56},
 year = {2023}
}