Analysis of Hydrocarbons in the Exhaust Gas of a Fusion Test Device Using Infrared Absorption Spectroscopy

• TANAKA Masahiro

  National Institute for Fusion Science The Graduate University for Advanced Studies, SOKENDAI

• KATO Hiromi

  National Institute for Fusion Science

• SUZUKI Naoyuki

  National Institute for Fusion Science

抄録

To investigate the behavior of hydrogen isotopes in a large fusion test device, a new technique using infrared absorption spectroscopy is applied for the monitoring of hydrocarbons in exhaust gas. Fourier transform infrared (FT-IR) spectroscopy combined with a gas cell, which has an optical path length of 16 m, was installed at the plasma exhaust line. In this configuration, the detection limit of CH₄, C₂H₆, C₂H₄, and CO is at the level of sub-ppm. The exhaust gas observations were conducted during hydrogen glow discharge and during the regeneration operation of cryosorption pumps during the hydrogen plasma phase. As a result, hydrocarbons and carbon monoxide were detected in the exhaust gas, and the exhaust behavior and the ratio of gas components were determined. It is also demonstrated that light and the heavy hydrocarbons can be discriminated by the FT-IR system. Our infrared absorption spectroscopy study provides positive prospects for its application to exhaust gas analyses.

収録刊行物

• Plasma and Fusion Research

  Plasma and Fusion Research 15 (0), 2405008-2405008, 2020-04-14

  一般社団法人 プラズマ・核融合学会

キーワード

• exhaust gas monitoring
• hydrocarbons analysis
• FT-IR
• long optical path gas cell
• deuterium plasma experiment
• large fusion test device

詳細情報

• CRID: 1390285300156279296
• NII論文ID: 130007840503
• NII書誌ID: AA12346675
• DOI: 10.1585/pfr.15.2405008
• ISSN: 18806821
• HANDLE: 10655/00012995
• Web Site: https://nifs-repository.repo.nii.ac.jp/records/11040
• Web Site: https://www.jstage.jst.go.jp/article/pfr/15/0/15_2405008/_pdf
• 本文言語コード: en
• データソース種別:
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  • IRDB
  • Crossref
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