High-Resolution Measurement of Gas Pressure Using Laser-Induced Plasma Fluorescence.

DOI Web Site Web Site

Bibliographic Information

Other Title
  • レーザプラズマ誘起蛍光を用いたガス圧力の高感度計測
  • レーザ プラズマ ユウキ ケイコウ オ モチイタ ガス アツリョク ノ コウ

Search this article

Description

A highly-sensitive technique for gas pressure measurement has been developed using laser-induced plasma fluorescence. ArF laser light of 193nm is focused into CF3I/Aγ gas mixture, where Ar is ionized by the 3-photon absorption. A highly pressure-dependent fluorescence intensity is obtained which originates from the 3-body reaction of Aγ+2, Aγ2 and Aγ2 with two Ar atoms. Pressure fluctuation in a turbulent jet is measured applying the present method. Pressure fluctuation beyond the instrumental noise level can be measured, where the instrumental noise level is 0.5 percent of the total pressure.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top