シミュレーションによるPierce型電子銃の基本設計

書誌事項

タイトル別名
  • Simulation of the Pierce Type Electron Gun for a Basic Design
  • シミュレーション ニ ヨル Pierceガタ デンシジュウ ノ キホン セッケイ

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抄録

  Numerical simulation including the space charge effect was carried out to determine the basic parameters for a newly designed 100 kW (40 kV, 2.5 A) Pierce-type electron gun. It is required that the electron beam of 2.5 A could pass through the aperture hole without colliding with the electrode and lens assembly. Three models of electrode assembly, were examined, A) with a cone-shaped Wehnelt B) with a spherical Wehnelt, and C) same as B except a larger anode hole. The space charge limited current exceeds 2.5 A for model B and C. However, electron beams in model B collide with the anode inlet irrespective of the operating conditions. The model C was found to satisfy the requirement under an adequate operating condition of electromagnetic lens.<br>

収録刊行物

  • 真空

    真空 49 (3), 189-191, 2006

    一般社団法人 日本真空学会

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