Electron momentum-transfer collision frequency measurements in small plasma objects via coherent microwave scattering

Adam R. Patel; Xingxing Wang; Erik L. Braun; Apoorv Ranjan; Mikhail N. Slipchenko; Sergey Macheret; Mikhail N. Shneider; Alexey Shashurin

doi:10.1088/1361-6595/aca430

Electron momentum-transfer collision frequency measurements in small plasma objects via coherent microwave scattering

Adam R. Patel, Xingxing Wang, Erik L. Braun, Apoorv Ranjan, Mikhail N. Slipchenko, Sergey Macheret, Mikhail N. Shneider, Alexey Shashurin

Mechanical & Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

This paper presents the possibility of using coherent microwave scattering (CMS) for temporally resolved measurements of the electron momentum-transfer collision frequency in small plasma objects. Specifically, the electron collision frequency is inferred via phase information from microwave scattering off microplasmas operating in the mixed collisional-Thomson scattering regime. We further suggest the combination of phase and amplitude measurements to derive total electron counts and temperatures in small plasmas. An experimental validation of this concept is performed by 10.5 GHz CMS off laser-induced, variable-pressure oxygen and air plasmas.

Original language	English (US)
Article number	114011
Journal	Plasma Sources Science and Technology
Volume	31
Issue number	11
DOIs	https://doi.org/10.1088/1361-6595/aca430
State	Published - Jan 2023

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

Keywords

constructive coherent microwave scattering
electron collision frequency
microwave plasma diagnostics
nonintrusive plasma diagnostics

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10.1088/1361-6595/aca430

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title = "Electron momentum-transfer collision frequency measurements in small plasma objects via coherent microwave scattering",

abstract = "This paper presents the possibility of using coherent microwave scattering (CMS) for temporally resolved measurements of the electron momentum-transfer collision frequency in small plasma objects. Specifically, the electron collision frequency is inferred via phase information from microwave scattering off microplasmas operating in the mixed collisional-Thomson scattering regime. We further suggest the combination of phase and amplitude measurements to derive total electron counts and temperatures in small plasmas. An experimental validation of this concept is performed by 10.5 GHz CMS off laser-induced, variable-pressure oxygen and air plasmas.",

keywords = "constructive coherent microwave scattering, electron collision frequency, microwave plasma diagnostics, nonintrusive plasma diagnostics",

author = "Patel, {Adam R.} and Xingxing Wang and Braun, {Erik L.} and Apoorv Ranjan and Slipchenko, {Mikhail N.} and Sergey Macheret and Shneider, {Mikhail N.} and Alexey Shashurin",

note = "Publisher Copyright: {\textcopyright} 2022 IOP Publishing Ltd.",

year = "2023",

month = jan,

doi = "10.1088/1361-6595/aca430",

language = "English (US)",

volume = "31",

journal = "Plasma Sources Science and Technology",

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TY - JOUR

T1 - Electron momentum-transfer collision frequency measurements in small plasma objects via coherent microwave scattering

AU - Patel, Adam R.

AU - Wang, Xingxing

AU - Braun, Erik L.

AU - Ranjan, Apoorv

AU - Slipchenko, Mikhail N.

AU - Macheret, Sergey

AU - Shneider, Mikhail N.

AU - Shashurin, Alexey

PY - 2023/1

Y1 - 2023/1

N2 - This paper presents the possibility of using coherent microwave scattering (CMS) for temporally resolved measurements of the electron momentum-transfer collision frequency in small plasma objects. Specifically, the electron collision frequency is inferred via phase information from microwave scattering off microplasmas operating in the mixed collisional-Thomson scattering regime. We further suggest the combination of phase and amplitude measurements to derive total electron counts and temperatures in small plasmas. An experimental validation of this concept is performed by 10.5 GHz CMS off laser-induced, variable-pressure oxygen and air plasmas.

AB - This paper presents the possibility of using coherent microwave scattering (CMS) for temporally resolved measurements of the electron momentum-transfer collision frequency in small plasma objects. Specifically, the electron collision frequency is inferred via phase information from microwave scattering off microplasmas operating in the mixed collisional-Thomson scattering regime. We further suggest the combination of phase and amplitude measurements to derive total electron counts and temperatures in small plasmas. An experimental validation of this concept is performed by 10.5 GHz CMS off laser-induced, variable-pressure oxygen and air plasmas.

KW - constructive coherent microwave scattering

KW - electron collision frequency

KW - microwave plasma diagnostics

KW - nonintrusive plasma diagnostics

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U2 - 10.1088/1361-6595/aca430

DO - 10.1088/1361-6595/aca430

M3 - Article

AN - SCOPUS:85144263294

SN - 0963-0252

VL - 31

JO - Plasma Sources Science and Technology

JF - Plasma Sources Science and Technology

IS - 11

M1 - 114011

ER -

Electron momentum-transfer collision frequency measurements in small plasma objects via coherent microwave scattering

Abstract

All Science Journal Classification (ASJC) codes

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