Near-Resonant Rayleigh Scattering Method for Measurements of Alkali Atomic Density in Combustion Gas Plasmas

Yukio Watanabe, Tomoaki Ikegami, Toshio Nishiyama, Masanori Akazaki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper reports the development of a non-intrusive, space-resolved method for density measurements of alkali atoms in combustion gas plasmas. A sodium density of over 1014cm-3in an air-acetylene flame was measured using a near-resonant Rayleigh scattering (NRRS) method, in which the wavelength of the incident laser was detuned from the resonance line of the sodium atoms in order to avoid reabsorption of the scattered signal light. The results agree fairly well with those obtained by the spectral absorption method and the Na reference cell method. The results show that the NRRS method described here can also be used to measure atomic densities of the order of 1016cm-3typical values in an open-cycle MHD power-generation plasma.

Original languageEnglish
Pages (from-to)904-908
Number of pages5
JournalJapanese Journal of Applied Physics
Volume23
Issue number7R
DOIs
Publication statusPublished - Jan 1 1984

Fingerprint

Rayleigh scattering
alkalies
Magnetohydrodynamic power generation
Sodium
sodium
Plasmas
Atoms
plasma generators
Acetylene
Gases
resonance lines
gases
acetylene
atoms
flames
absorption spectra
Wavelength
cycles
Lasers
air

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Near-Resonant Rayleigh Scattering Method for Measurements of Alkali Atomic Density in Combustion Gas Plasmas. / Watanabe, Yukio; Ikegami, Tomoaki; Nishiyama, Toshio; Akazaki, Masanori.

In: Japanese Journal of Applied Physics, Vol. 23, No. 7R, 01.01.1984, p. 904-908.

Research output: Contribution to journalArticle

Watanabe, Yukio ; Ikegami, Tomoaki ; Nishiyama, Toshio ; Akazaki, Masanori. / Near-Resonant Rayleigh Scattering Method for Measurements of Alkali Atomic Density in Combustion Gas Plasmas. In: Japanese Journal of Applied Physics. 1984 ; Vol. 23, No. 7R. pp. 904-908.
@article{f5f985278db548eb87cfdde8ba47365c,
title = "Near-Resonant Rayleigh Scattering Method for Measurements of Alkali Atomic Density in Combustion Gas Plasmas",
abstract = "This paper reports the development of a non-intrusive, space-resolved method for density measurements of alkali atoms in combustion gas plasmas. A sodium density of over 1014cm-3in an air-acetylene flame was measured using a near-resonant Rayleigh scattering (NRRS) method, in which the wavelength of the incident laser was detuned from the resonance line of the sodium atoms in order to avoid reabsorption of the scattered signal light. The results agree fairly well with those obtained by the spectral absorption method and the Na reference cell method. The results show that the NRRS method described here can also be used to measure atomic densities of the order of 1016cm-3typical values in an open-cycle MHD power-generation plasma.",
author = "Yukio Watanabe and Tomoaki Ikegami and Toshio Nishiyama and Masanori Akazaki",
year = "1984",
month = "1",
day = "1",
doi = "10.1143/JJAP.23.904",
language = "English",
volume = "23",
pages = "904--908",
journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
issn = "0021-4922",
publisher = "Institute of Physics",
number = "7R",

}

TY - JOUR

T1 - Near-Resonant Rayleigh Scattering Method for Measurements of Alkali Atomic Density in Combustion Gas Plasmas

AU - Watanabe, Yukio

AU - Ikegami, Tomoaki

AU - Nishiyama, Toshio

AU - Akazaki, Masanori

PY - 1984/1/1

Y1 - 1984/1/1

N2 - This paper reports the development of a non-intrusive, space-resolved method for density measurements of alkali atoms in combustion gas plasmas. A sodium density of over 1014cm-3in an air-acetylene flame was measured using a near-resonant Rayleigh scattering (NRRS) method, in which the wavelength of the incident laser was detuned from the resonance line of the sodium atoms in order to avoid reabsorption of the scattered signal light. The results agree fairly well with those obtained by the spectral absorption method and the Na reference cell method. The results show that the NRRS method described here can also be used to measure atomic densities of the order of 1016cm-3typical values in an open-cycle MHD power-generation plasma.

AB - This paper reports the development of a non-intrusive, space-resolved method for density measurements of alkali atoms in combustion gas plasmas. A sodium density of over 1014cm-3in an air-acetylene flame was measured using a near-resonant Rayleigh scattering (NRRS) method, in which the wavelength of the incident laser was detuned from the resonance line of the sodium atoms in order to avoid reabsorption of the scattered signal light. The results agree fairly well with those obtained by the spectral absorption method and the Na reference cell method. The results show that the NRRS method described here can also be used to measure atomic densities of the order of 1016cm-3typical values in an open-cycle MHD power-generation plasma.

UR - http://www.scopus.com/inward/record.url?scp=0021465951&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0021465951&partnerID=8YFLogxK

U2 - 10.1143/JJAP.23.904

DO - 10.1143/JJAP.23.904

M3 - Article

VL - 23

SP - 904

EP - 908

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 7R

ER -