並列タイトル等デンシ ショウゲキ カネツガタ デンシジュウ ノ カイリョウ
Improvements of an Electron-heated Point Cathode Gun
タイトル(掲載誌)愛知工業大学研究報告. B, 専門関係論文集 = Bulletin of Aichi Institute of Technology. Part B
一般注記An electron-heated point cathode gun has been studied for the development of a high brightness gun with a long cathode life. In this gun, only the tip part of the tungsten point cathode is heated by the bombardment of the electrons emitted from an annular gun set inside of the Wehnelt cylinder. The emission characteristics of the gun show that this gun can be operated in the same way as a conventional triode gun. Besides the electron beam emitted thermally from the cathode tip, however, the backscattered and secondary electrons arrive at the anode. It was found that most of these electrons are caused by the bombarding electrons hitting the Wehnelt aperture and are suppressed by modification of the electrodes arrangement.
identifier:http://repository.aitech.ac.jp/dspace/handle/11133/661
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)