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Please use this identifier to cite or link to this item: http://hdl.handle.net/11133/137

Title: 電子顕微鏡用電子銃の電位分布及び電子軌道の算出
Other Titles: デンシ ケンビキョウヨウ デンシジュウ ノ デンイ ブンプ オヨビ デンシ キドウ ノ サンシュツ
The Calculation of the Field Distribution and Electron Trajectory in Electron Microscope Gun.
Authors: 竹松, 英夫
Issue Date: 10-Oct-1965
Publisher: 愛知工業大学
Abstract: The characteristics of the electron microscope gun with a hair pin filament is studied by using a digital computer. The field intensity is calculated by a relaxation method. It is seen that the low beam current gun and high field intensity in the vicinity of the cathode tip are obtained when the tip of the cathode is placed near the Wehnelt surface as closely as possible and the Wehnelt is at high bias. The mechanism of the hollow beam is explained by calculating the electron density at the plane, far away from the cathode, vertical to the optical axis.
URI: http://hdl.handle.net/11133/137
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