Reproducibility of `COST Reference Microplasma Jets'

TL;DR

This study evaluates the reproducibility of COST reference microplasma jets across various parameters, confirming their consistency and reliability for scientific and technological applications in plasma research.

Contribution

The paper provides a comprehensive assessment of the reproducibility of COST reference microplasma jets, establishing their reliability for research and application purposes.

Findings

COST jets show consistent atomic oxygen densities within standard deviation.

Ozone densities are reproducible across multiple sources.

Electrical and optical characteristics are stable and reproducible.

Abstract

Atmospheric pressure plasmas have been ground-breaking for plasma science and technologies, due to their significant application potential in many fields, including medicinal, biological, and environmental applications. This is predominantly due to their efficient production and delivery of chemically reactive species under ambient conditions. One of the challenges in progressing the field is comparing plasma sources and results across the community and the literature. To address this a reference plasma source was established during the `Biomedical Applications of Atmospheric Pressure Plasmas' EU COST Action MP1101. It is crucial that reference sources are reproducible. Here, we present the reproducibility and variance across multiple sources through examining various characteristics, including: absolute atomic oxygen densities, absolute ozone densities, electrical characteristics, optical emission spectroscopy, temperature measurements, and bactericidal activity. The measurements demonstrate that the tested COST jets are reproducible, within the standard deviation, for each measurement.