大電力高周波窓用アルミナ材料からの二次電子放出

• 道園 真一郎

  高エネルギー加速器研究機構

• 齊藤 芳男

  埼玉大学

• Suharyanto

  埼玉大学

• 山納 康

  埼玉大学

• 小林 信一

  埼玉大学

書誌事項

タイトル別名

• Secondary Electron Emission from Alumina Materials Used for High-Power RF Windows
• ダイ デンリョク コウシュウハ マドヨウ アルミナ ザイリョウ カラ ノ 2ジ デンシ ホウシュツ

抄録

The improvements of the dielectric materials are one of the most important parts for developing the compact and/or higher power insulators. The breakdown of the rf windows, which pass rf power and isolate vacuum, was induced by the multipactor and surface discharge. Both are related to the secondary electron emission (SEE) and surface charigng. The SEE from alumina materials are measured using a scanning electron microscope (SEM). The single-pulse and multi-pulse methods are applied for the SEE coefficients and surface charging measurements, respectively. The TiN coatings for multipactor suppression are also investigated from the view points of SEE and surface charging. Sapphire shows highest surface charging and has higher SEE coefficients with temperature increase. These results lead to the lower threshold of the electrical breakdown observed for the rf windows. It is confirmed that TiN coatings are effective for the decrease in SEE. The multipulse-measurements indicate TiN coatings lower the surface charging probably caused by the lower SEE.

収録刊行物

• 電気学会論文誌．　Ａ

  電気学会論文誌．　Ａ 126 (8), 751-756, 2006

  一般社団法人 電気学会

キーワード

• 二次電子放出
• 真空中の帯電
• 沿面放電

詳細情報

• CRID: 1390001204592816256
• NII論文ID: 10018181384
• NII書誌ID: AN10136312
• DOI: 10.1541/ieejfms.126.751
• ISSN: 13475533
• ISSN: 03854205
• NDL書誌ID: 8053425
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8053425
• Web Site: http://www.jstage.jst.go.jp/article/ieejfms/126/8/126_8_751/_pdf
• 本文言語コード: ja
• データソース種別:
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  • NDL
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• 抄録ライセンスフラグ: 使用不可