Investigation of the Electron Detachment via Electric Field Fluctuation in a Magnetic Thrust Chamber for Laser Fusion Rocket

DOI

書誌事項

公開日
2025
DOI
  • 10.57350/jesa.231
公開者
宇宙技術および科学の国際シンポジウム

説明

<p>Understanding plasma detachment in a magnetic thrust chamber for laser fusion rocket is an important issue for thrust generation. Many previous studies have demonstrated that the cross-field transport of electrons is driven by electric field fluctuations. However, the relationship between electron detachment and electric field fluctuations in laser fusion rockets remains unclear. In this study, the plasma behavior in the magnetic thrust chamber was investigated using a full particle-in-cell simulation code. By comparing the velocity increments caused by electric and magnetic fields, it was revealed that electric field fluctuations contribute to electron detachment. A fast Fourier transformation was conducted in two regions; high-intensity electric field was observed to identify the instabilities of electric field. The dispersion relations of the electric field fluctuations show two types of features with an intensity of ∼107‐8V/m: parabolic and linear, which qualitatively agree with the dispersion relations of the several plasma waves, including Langmuir, ion acoustic, Alfven, and magneto acoustic waves.</p>

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詳細情報 詳細情報について

  • CRID
    1390023627013574272
  • DOI
    10.57350/jesa.231
  • ISSN
    27581802
  • 本文言語コード
    en
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用可

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