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Title
Japanese: 
English:Practical considerations of the visible bremsstrahlung inversion (VBI) method for arbitrary EEDF determination in cold atmospheric-pressure plasma 
Author
Japanese: Van Der Gaag, Thijs, 根津篤, 赤塚洋.  
English: Thijs van der Gaag, Atsushi Nezu, Hiroshi Akatsuka.  
Language English 
Journal/Book name
Japanese: 
English:Japanese Journal of Applied Physics 
Volume, Number, Page Vol. 61    No. 07    076004
Published date June 13, 2022 
Publisher
Japanese: 
English:IOP Publishing 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL https://iopscience.iop.org/article/10.35848/1347-4065/ac7835
 
DOI https://doi.org/10.35848/1347-4065/ac7835
Abstract The arbitrary electron energy distribution function (EEDF) of a cold atmospheric-pressure plasma is determined from optical emission spectroscopy measurement. Using the electron-neutral bremsstrahlung-dominated continuum spectrum and relevant cross section data, a partial arbitrary EEDF can be reconstructed through the reinforcement learning-based visible bremsstrahlung inversion (VBI) method. From an atmospheric-pressure argon dielectric barrier discharge plasma emission spectrum (440-900 nm), a partial arbitrary EEDF can be determined with a resolution of 0.2 eV. Resemblance between the obtained arbitrary EEPF and a two-temperature Maxwellian was found with T_e = 0.26 and 2.2 eV. The EEDF range is mostly constrained by the spectrum wavelength range.

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