The dataset contains a set of 180 images showing the dynamics of the effluent of the kINPen Science at a distance of 7 mm in front of a grounded copper plate. The image data set can be analysed by means of the open-source BLITZ image viewer (https://github.com/CodeSchmiedeHGW/BLITZ), shading light on the plasma-induced flow dynamics.
The spatial density distribution of H2O2 in the effluent of the COST-Jet and the kINPen-sci operated with a humidified helium feed gas - dataset
This work serves to highlight the difference of the distinct spatial distribution of H2O2 (hydrogen peroxide) in the effluent of the kINPen-sci plasma jet and the COST reference microplasma jet (COST Jet) operated with humidified helium. For this purpose, the density of H2O2 has been measured spatially resolved using cavity-enhanced absorption spectroscopy employing continuous wave cavity ring-down spectroscopy (cw-CRDS) with a tunable mid-infrared laser.
Validation of THz absorption spectroscopy by a comparison with ps-TALIF measurements of atomic oxygen densities
This data set contains the data shown in the corresponding publication in Applied Physics Letters (https://doi.org/10.1063/5.0160303). This publication presents a benchmark of THz absorption spectroscopy against a more established method. Atomic oxygen densities were measured with THz absorption spectroscopy and compared to those obtained from picosecond (ps) two-photon absorption laser induced fluorescence (TALIF) measurements on the same capacitively coupled radio frequency oxygen discharge.
Laser absorption spectroscopy (LAS) was applied to investigate a low pressure DC-pulsed discharge in N2-H2 gas mixtures with addition of CH4 or O2. The discharge was maintained in an industrial-scale, active screen plasma nitrocarburizing (ASPNC) reactor with a steel active screen (AS). Spectroscopic lines of CH4, NH3, HCN, CO and H2O were recorded. The dataset contains the species densities for different gas mixtures.
The localised density of H₂O₂ in the effluent of a cold atmospheric pressure plasma jet determined by continuous-wave cavity ring-down spectroscopy
The data set comprises full cavity ring-down spectra and absorption coefficients obtained from on/off-resonance measurements, in order to determine the spatial distribution of H2O2 in the cold atmospheric pressure plasma jet kINPen-sci. Therefore, the plasma jet was operated with 3 slm Ar and 3000 ppm water, and was equipped with a gas curtain of 5 slm O2. To determine the effective absorption length, the H2O2 absorption was measured in radial direction. These radial fits had a Gaussian-like shape.
In the Oxidant reactor, a DBD generates a plasma using air as the carrier gas. Before treatment, the carrier gas and the sample liquid are mixed and then nebulized. The resulting reaction products include ozone, which can be used for the treatment of raw water. Hereby, a treatment of river water is possible, which can subsequently be used as a coolant in the industry. A treatment of cyanotoxins has already been successfully carried out.
Formation mechanisms of striations in a filamentary dielectric barrier discharge in atmospheric pressure argon - dataset
The results of the modelling of a filamentary dielectric barrier discharge (DBD) in argon at atmospheric pressure obtained using a time-dependent and spatially two-dimensional fluid-Poisson model in axisymmetric geometry are provided in this dataset. The model was employed to investigate the formation mechanisms of the striations along the discharge channel in a one-sided DBD arrangement with a 1.5 mm gap powered by a sinusoidal high voltage applied at the metal electrode.
Introduction and verification of FEDM, an open-source FEniCS-based discharge modelling code - dataset
The dataset contains the data presented in the paper introducing the FEDM (Finite Element Discharge Modelling) code. The FEDM code was developed using the open-source computing platform FEniCS (https://fenicsproject.org). Building on FEniCS, the FEDM code utilises the finite element method to solve partial differential equations. It extends FEniCS with features that allow the automated implementation and numerical solution of fully-coupled fluid-Poisson models, including an arbitrary number of particle balance equations.
The electron swarm transport coefficients (bulk drift velocity, bulk longitudinal component of the diffusion tensor, and effective ionization frequency) in CO are investigated for a wide range of the reduced electric field by means of measurements and kinetic calculations. The set of data contains results of measurements in a scanning drift tube apparatus under time-of-flight conditions as well as of kinetic swarm calculations using solutions of the electron Boltzmann equation and Monte Carlo simulations.
This data set contains the data shown in the corresponding publication in Plasma Sources Science and Technology (https://doi.org/10.1088/1361-6595/acb815). This publication presents the first implementation of terahertz (THz) quantum cascade lasers (QCLs) for high-resolution absorption spectroscopy on plasmas. Absolute densities of ground state atomic oxygen were directly obtained by using the fine structure transition at approximately 4.75 THz.