نتایج جستجو برای: thermionic electron emission

تعداد نتایج: 473143  

Journal: :Proceedings of the National Academy of Sciences 1928

Journal: :Coatings 2023

By exploiting the physical effect of electron emission from a thermionic source in combination with magnetically controlled Fe–Al dynamic platform to assist electrical discharge, we generated atmospheric microplasma (AM). The characteristics discharge-induced cold plasma open air were evaluated. surface analysis organic wheat seeds was investigated at two steps: (1) coating an Al nanoparticle e...

1999
D. Durkin J. Fajans

Magnetized electron columns are a valuable experimental tool used to study two-dimensional ~2D! fluid phenomena. Traditionally, the electrons have been generated with thermionic sources, typically limiting the initial electron distribution to one filled circle and thereby restricting the range of accessible fluid phenomena. Here, we describe a new electron source based on a cesium antimonide ph...

Journal: : 2022

The thermionic emission current is used in many vacuum devices such as evaporators, rare gas excimers, or electron beam objects for high-energy physics. stability of the a very important requirement accuracy those devices. Hence, there number control systems that use feedback signal directly proportional to order stabilize current. Most them from high-voltage anode circuit low-voltage cathode c...

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