A study on REMPI as a measurement technique for highly rarefied gas flows simulations and its fundamental properties of REMPI spectra

Hideo Mori, Toshihiko Ishida, Shigeyuki Hayashi, Yoshinori Aoki, Tomohide Niimi

Research output: Contribution to journalArticle


Nowadays, a non-intrusive measurement tool of thermodynamic variables with high sensitivity is strongly demanded for analyses of highly rarefied gas flows. REMPI (resonantly enhanced multi-photon ionization) is the most suitable technique for measurement of gas molecules with very low density. In this study, to examine the fundamental properties of the REMPI spectra, 2R+2 N2 REMPI spectra including the spectral broadening are calculated and compared with the experimental results. From the calculated REMPI spectra, spectral lines adequate to measure temperature are proposed, especially at relatively high temperature where the measurement error becomes larger because of the overlap of the spectral lines.

Original languageEnglish
Pages (from-to)3035-3041
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Issue number637
Publication statusPublished - Sep 1999
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering

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