کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1677339 1518309 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Observation of electron beam moiré fringes in an image conversion tube
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Observation of electron beam moiré fringes in an image conversion tube
چکیده انگلیسی


• Observe the electron beam moiré fringes in large angle of view.
• The changes to the fringe direction and the spacing as a function of the rotation angle between the two gratings were examined.
• Modulations of the moiré fringes in different rotation angle are recorded.

An image conversion tube with a magnetic lens was designed to observe electron beam moiré fringes. Electron beam moiré fringes result from the interference between the photocathode and the anode meshes. The photocathode had a strip line structure with a spatial frequency of 10 L/mm. The anode mesh had a fixed spatial frequency of 10 L/mm, and could be rotated around the axis of the image tube. The changes to the fringe direction and the spacing as a function of the rotation angle between the photocathode and the anode mesh were examined. The experimental results agreed with the theoretical analysis. Moiré fringes with a modulation of ~20% were obtained using a 3 keV electron beam.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultramicroscopy - Volume 170, November 2016, Pages 19–23
نویسندگان
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