Atmospheric nonequilibrium mini-plasma jet created by a 3D printer

Toshihiro Takamatsu,Hiroaki Kawano,Akitoshi Okino,Hidekazu Miyahara,Takeshi Azuma

doi:10.1063/1.4928034

Toshihiro Takamatsu, Hiroaki Kawano + Show 3 more

Open Access

https://doi.org/10.1063/1.4928034

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Journal: AIP Advances	Publication Date: Jul 1, 2015
Citations: 8	License type: CC BY 3.0

Affiliation: Kobe University, Tokyo Institute of Technology

Abstract

In this study, a small-sized plasma jet source with a 3.7 mm head diameter was created via a 3D printer. The jet’s emission properties and OH radical concentrations (generated by argon, helium, and nitrogen plasmas) were investigated using optical emission spectrometry (OES) and electron spin resonance (ESR). As such, for OES, each individual gas plasma propagates emission lines that derive from gases and ambient air inserted into the measurement system. For the case of ESR, a spin adduct of the OH radical is typically observed for all gas plasma treatment scenarios with a 10 s treatment by helium plasma generating the largest amount of OH radicals at 110 μM. Therefore, it was confirmed that a plasma jet source made by a 3D printer can generate stable plasmas using each of the aforementioned three gases.

Highlights

Observation and quantification of OH radicals in the far downstream part of an atmospheric microwave plasma jet using cavity ringdown spectroscopy
A small-sized plasma jet source with a 3.7 mm head diameter was created via a 3D printer
For optical emission spectrometry (OES), each individual gas plasma propagates emission lines that derive from gases and ambient air inserted into the measurement system

Summary

Introduction

Observation and quantification of OH radicals in the far downstream part of an atmospheric microwave plasma jet using cavity ringdown spectroscopy. Atmospheric nonequilibrium mini-plasma jet created by a 3D printer A small-sized plasma jet source with a 3.7 mm head diameter was created via a 3D printer.

Results

Conclusion