近赤外線2色放射温度計によるLab6ホローカソードのオリフィス表面温度測定

IR

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Other Title
  • Orifice surface temperature measurement of LaB6 hollow cathode by a near-infrared two-color radiation thermometer

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令和4年度宇宙輸送シンポジウム（2023年1月12日-13日. 宇宙航空研究開発機構宇宙科学研究所（JAXA)(ISAS)) , 相模原市, 神奈川県

Space Transportation Symposium FY2022 (January 12-13, 2023. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)), Sagamihara, Kanagawa Japan

Hollow cathodes (H/C: Hollow Cathode) are necessary to maintain and neutralize the operation of the Hall thruster, and H/C with better electron generation efficiency is used． The orifice is eroded and heated by the collision of energetic ions． Orifice erosion is related to the lifetime of the cathode, so it is necessary to understand the operating conditions． The orifice temperature is also related to the insert temperature and plasma condition, and the temperature characteristics are important for the evaluation of cathode operation characteristics and lifetime． In this study, the orifice surface temperature was measured externally in a non-contact manner to clarify the cause of wear and tear, and the temperature characteristics were evaluated．

資料番号: SA6000184095

STEP-2022-044

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